The best power banks keep your essentials alive without unnecessary bulk. Whether you’re traveling, working remotely, or exploring outside, a solid power bank can save your primary tools for communication, photos, navigation, and more.
For this round, GearJunkie Editor Chris Kassar put two power banks through a 6-month testing cycle, draining and recharging them at home, on flights, during road trips, and in the field. From flights to Jackson, Wyoming, to hikes and long driving days through Yellowstone National Park, Kassar tested how each model balanced capacity, charging speed, port layout, packability, and real-world convenience.
We crowned the Nestout 15,000mAh Outdoor Battery as our best overall pick for its rugged build, versatile charging setup, and adventure-ready design. On the other hand, the Skullcandy Fat Stash 2 earned our budget award for delivering dependable everyday charging performance in a compact, affordable package.
Over the past five years, our team of three expert testers has vetted more than 40 power banks for travel, camping, remote work, emergency backup, and everyday carry.
Editor’s Note: We updated our Power Banks guide on May 16, 2026, adding the laptop-ready Anker Laptop Power Bank 25,000mAh and the compact iWALK Portable Charger 4,500mAh, while refreshing specs, ratings, and buying advice to better reflect how each power bank performs in real-world use.
The Best Power Banks of 2026
Nestout 15000mAh Outdoor Battery
Nestout 15000mAh Outdoor Battery
(Photo/NESTOUT)
(Photo/Nick LeFort)
T to B: Skullcandy Fat Stash 2, Anker Powercore Slim, and Nestout Outdoor; (photo/Nick LeFort)
The Nestout 15000mAh Outdoor Battery is ready for your outdoor adventures; (photo/Nick LeFort)
(Photo/NESTOUT)
Specifications
Pros & Cons
Pros
Visually appealing
Dual-function portable battery
Built like a brick outhouse – rugged and durable
Shockproof, dustproof, and waterproof
Cons
Using light feature diminishes charging capacity
Sold out from time to time
Read Review: Rugged, Streamlined Power System: Nestout Solar Bundle Review
The Nestout 15000mAh Outdoor Battery ($67) has earned the top spot on our list after more than a year of rigorous field testing. While its 15,000 mAh capacity isn’t the largest in our lineup, its versatility remains unmatched. Because all three outputs double as inputs, and the bank is thoroughly waterproof, dustproof, and shockproof, it is the most adaptable battery we have tested.
With three ports, the Nestout can charge multiple devices simultaneously or power the brand’s optional LED lamp accessories. This added functionality turns the battery into an ambient light source lasting up to 26 continuous hours. Using the light does reduce the device-charging capacity; in our testing, regular light usage dropped the bank’s output from four full iPhone 14 Pro charges down to three.
Built for the elements, it carries an IP67 rating and survives submersion in water for up to 30 minutes. Only the heavy-duty Dark Energy Poseidon rivals it for pure durability. The battery delivers 32W of power and recharges fully in just 3.5 hours, making it an efficient system to top off with a solar panel in the backcountry or a wall outlet at home.
Beyond the performance specs, the rugged form factor and included tripod give this powerhouse massive appeal. The tripod is incredibly practical, allowing you to stand the battery on uneven ground or hang it from a tent ceiling or backpack to keep power accessible wherever you set up camp.
Skullcandy Fat Stash 2
Skullcandy Fat Stash 2
(Photo/Nick LeFort)
One thing to note: Skullcandy doesn’t specify if the Fat Stash 2 is built for the elements; (photo/Nick LeFort)
Due to its compact size, you can carry the Fat Stash 2 all day, every day; (photo/Nick LeFort)
The Skullcandy Fat Stash 2 is easy to juggle; (photo/Nick LeFort)
Specifications
Pros & Cons
Pros
Light and portable
Included combo cable to increase adaptability
The smallest power bank on the list with USB-C PD charging power
Cons
Frequently sold out online
Unsure if it has any protection from the elements built into it
The Skullcandy Fat Stash 2 ($42) is a pocket-sized power bank that punches well above its weight class. While it tops out at a standard 10,000 mAh capacity, its enhanced Power Delivery (PD) capabilities deliver 20W of charging power. This allows the compact unit to charge a smartphone to 50% in roughly half an hour, making it an incredibly fast and efficient on-the-go option.
Its slim, portable design makes it easy to stash in any pack or pocket, and it proved to be a great option for kids and adults alike. While Skullcandy does not list an official IP rating or durability rating, the unit handled repeated drops and water splashes during testing without issue. It easily survived the rough-and-tumble daily routine of an active eight-year-old, proving it can handle the rigors of everyday outdoor use.
The unit includes a 6-inch combo charging cable with a USB-A end and a Micro-USB/USB-C end. We appreciate the short cord — it allows you to stack your phone directly on the battery and carry both without a long, frustrating tail getting in the way. However, we would prefer a dedicated USB-C PD cable that can take full advantage of the 20W output.
The most impressive feature is the battery’s longevity, particularly at the bottom of its charge. Even when the power indicator showed just 12% to 15% remaining, the Fat Stash 2 reliably pushed an iPhone 14 Pro from 20% to full capacity before completely dying, ensuring you have backup power exactly when you need it most.
Specifications
Pros & Cons
Pros
Powerful enough for laptops
Charges up to four devices simultaneously
Built-in USB-C cables simplify travel
Digital display shows exact battery percentage and charging status
Cons
Heavy and bulky
High-wattage wall charger not included
The Anker Laptop Power Bank 25,000mAh ($120) is a high-capacity portable charger built for users who need serious power away from an outlet. With three 100W USB-C ports, one USB-A port, two built-in USB-C cables, and a digital display, it functions more like a compact power station than a backup phone battery.
The port layout is the immediate standout. It charges multiple devices at once, handling a laptop and phone simultaneously without forcing you to choose what gets priority. The built-in cables make a massive difference during transit. On a flight to Jackson, Wyoming, the retractable USB-C cable let GearJunkie Editor, Chris Kassar keep a phone topped off without digging through our carry-on for a cord. Additionally, the digital display made it easy to see exactly how much power remained before landing.
During a road trip through Yellowstone with limited charging windows, Kassar also relied heavily on this power bank to keep phones alive for maps, photos, and communication. We even hauled it on day hikes to guarantee a charge far from the trailhead. The downside is the physical footprint. At 21 ounces, it is undeniably heavy and bulky, especially compared to smaller banks like the iWALK Portable Charger.
This unit is overkill for casual phone top-offs, but it is one of the most useful options in our lineup for laptop charging, multi-device travel, and extended off-grid trips where reliable power matters more than minimal weight.
BioLite Charge 100 Max
BioLite Charge 100 Max
(Photo/Nick LeFort)
We tested the BioLite Charge 100 Max from mid-May, and it reliably charged multiple devices through road trips, mountain stays, hikes, and daily home office use; (photo/Nick LeFort)
Unfortunately, the BioLite Charge 100 Max does not work well with backpacking solar panels; (photo/Nick LeFort)
The BioLite Charge 100 Max can charge 5 devices, 1 of them wirelessly; (photo/Nick LeFort)
Specifications
Pros & Cons
Pros
Great balance between size and capacity with the added benefit of efficiency
Can charge up to 5 devices at once
Bi-directional charging for optimized charging and recharging
Rugged construction with 1m drop rating
Cons
Too much power and capability for simple charging needs
Not waterproof/IP rated
Read Review: Lighter, Cheaper, Faster: BioLite Charge 100 Max Review
The BioLite Charge 100 Max ($180) is an optimal solution for remote workers, traveling families, and anyone who needs to manage multiple devices simultaneously. It efficiently powers up to five devices at once using both fast-charging wired ports and a wireless pad.
The layout has a wireless pad, a standard USB-A port, and a standard USB-C port, each capped at 15W. The standout components are the two USB-C PD ports, which deliver up to 100W of power. This high output ensures that larger devices like laptops charge efficiently without needlessly draining the massive 25,000 mAh battery.
During testing across New England, this unit seamlessly transitioned from powering a MacBook Pro for field writing to keeping three iPads running simultaneously for uninterrupted gaming. As the largest power bank in our lineup, it carries undeniable bulk. However, unless you are an ultralight runner counting every ounce, the physical size is a perfectly reasonable trade-off for the sheer capacity.
BioLite also includes a premium 100W USB-C PD cable in the box. This is a huge bonus that saves you money and ensures you can actually tap into the power bank’s maximum output right away, since standard cables often max out at 15W.
Keep in mind that the 100 Max is not waterproof. It handled light drizzle during our testing, but if water gets into the open ports, this premium power bank will turn into a bright yellow brick.
Specifications
Pros & Cons
Pros
Light and portable
Built-in USB tip adds utility
Simple button-free interface
Cons
Lacks USB-C output
The Goal Zero Flip 24 ($30) is 1 degree smaller than the common 10K mAh power bank size class. It’s about the same size as a 15-pack of gum, and it charged an iPhone 13 twice (almost 81% on the second charge). It’s a great value for $30, and it adds valuable peace of mind on long hikes and bike rides.
Unlike most power banks on this list, the Flip 24 only has USB-A input and output. It’s not surprising for such a small bank, but it might be annoying for folks without a compatible cable. Plus, USB-C charging tends to be faster than USB-A. The Flip 24 will charge your phone slower than most other options on this list.
On the plus side, the Flip 24’s built-in USB-A stick is quite convenient. It plugs directly into compatible ports and charges right up without a cord. The battery indicator lights light up when the user presses the USB stick, which doubles as a button — product design panache.
For phones, earbuds, and smartwatches, the Goal Zero Flip 24 is a nifty little backup battery. If you need to charge larger devices, go with a power bank with greater capacity, like the BioLite Charge Max 100.
Specifications
Pros & Cons
Pros
Slim and lightweight
Capacity for 2-3 phone charges
Charges quickly
Durable build with overload and overcharge protection
Cons
Only charges one device at a time
The Anker 313 Power Bank (aka PowerCore 10K) ($26) balances portability and reliable charging power. With a 10,000mAh capacity, it provides two to three full smartphone charges. Weighing just over half a pound and slim enough to slip into a pocket, purse, or carry-on, the PowerCore 10k makes a great companion for travel, long commutes, or epic hikes. Anker’s PowerIQ tech delivers up to 5V/3A fast charging, while trickle-charge mode safely powers earbuds and other small devices. Its durable build and safety system protect against overload and overcharging, and broad compatibility ensures it works with most phones, tablets, and accessories.
On a recent trip back East, where we flew and drove long distances, it proved essential to keep phones and headphones charged the entire time. It’s also lightweight enough to toss in a daypack for hiking or skiing, so we often took it on full-day adventures where we needed our phone to last. Even while using our phone for GPS tracking and capturing countless videos and photos, this tiny but mighty bank kept our phone up and running. Our only gripe is that it only charges one device at a time, but that didn’t detract from its place in our pack or carry-on. For a lightweight, compact, and reliable power bank, the PowerCore 10K is a strong pick for everyday use or travel.
Other Power Banks That Get Us Charged Up
Specifications
Pros & Cons
Pros
Pocket-size design
Built-in USB-C connector means no cord needed
20W fast charging
Supports pass-through charging
Cons
Limited 4,500mAh capacity
Not useful for laptops or larger devices
The iWALK Portable Charger 4,500mAh ($27) is a tiny, phone-first power bank built for quick top-offs when you want to avoid carrying a separate cord or bulky battery pack. With a lipstick-sized design, a built-in USB-C connector, 20W fast charging, and a 6-ounce weight, it is perfect for everyday carry when convenience matters more than maximum capacity.
The biggest advantage is the built-in USB-C plug. Instead of pulling out a cable, GearJunkie Editor Chris Kassar simply plugged it directly into a phone and kept moving. This proved especially handy while watching wildlife in Grand Teton National Park with her phone attached to a spotting scope. When our battery dropped during a long session, we plugged the iWALK directly into the phone and kept filming — no missed shots while digging for a cord.
But, there is a tradeoff: capacity. At 4,500mAh, this unit is not meant to fully recharge multiple devices or power a tablet or laptop. It functions as a compact backup for a single phone, not a basecamp battery. Compared to the massive Anker Laptop Power Bank 25,000mAh, the iWALK is far easier to slip into a pocket or small daypack, but it sacrifices serious runtime and port versatility. Keep in mind that compact plug-in chargers can be awkward with thick phone cases if the case prevents the built-in connector from seating cleanly.
The iWALK is an excellent pick for anyone who wants a small, cable-free USB-C charger for emergency top-offs and field moments when keeping a phone alive matters more than carrying maximum capacity.
The Nimble CHAMP Pro Portable Charger proved to be durable enough to handle everything our kids could throw at it; (photo/Nick LeFort)
Specifications
Pros & Cons
Pros
65W output for 2 devices at once
Carbon-neutral product
Compact for capacity
Wicked durable
Cons
Doesn’t have official durability or waterproof ratings
Doesn’t have pass-through charging
The Nimble CHAMP Pro Portable Charger ($100) is a 20,000 mAh power bank capable of charging two devices simultaneously at an impressive 65W per output. We handed this unit to our daughters for an entire summer, and it proved to be an incredibly efficient tool for keeping their electronics running. It easily survived being tossed indoors, outdoors, left in sleeping bags, and forgotten on picnic tables. Its rugged rubberized exterior provides an excellent grip and clearly helps absorb the shock of those inevitable drops onto hard surfaces.
The design has two USB-C ports — one at either end — that both act as inputs and outputs, making it simple to charge two devices at once. While its massive capacity is strong enough to power a laptop, we found it functioned best for keeping phones and tablets topped off during long road trips. The only notable drawback is the lack of pass-through charging, meaning you cannot charge your devices while the bank itself is plugged into the wall.
Despite having no official durability ratings from the brand, surviving the daily habits of an eight- and eleven-year-old proves it can take a serious beating. Just ensure it stays dry, as it is not waterproof. If you want a more compact option and don’t need the massive capacity, Nimble also offers the half-sized 10,000 mAh CHAMP for $60. Ultimately, if you need a solid power bank that cranks out juice and handles rough daily use, the CHAMP Pro delivers.
(photo/Elk Raven Photography)
GOODaaa 36,000mAh Wireless Power Bank (photo/Elk Raven Photography)
GOODaaa 36,000mAh Wireless Power Bank (photo/Elk Raven Photography)
GOODaaa 36,000mAh Wireless Power Bank (photo/Elk Raven Photography)
GOODaaa 36,000mAh Wireless Power Bank (photo/Elk Raven Photography)
Specifications
Pros & Cons
Pros
Massive capacity means 6–8 phone charges
Six outputs with built-in cables and wireless charging
15W fast charging + three input options, including solar
Dual flashlights and a carabiner add outdoor utility
Cons
Bulky and heavy for everyday pocket carry
Cables are too short
Solar charging is slow and works best as a backup only
The GOODaaa Power Bank Wireless Charger 36,000mAh ($70) is designed for people who need serious charging capacity on the go. It provides enough juice to power a smartphone 6–8 times or keep a tablet running for days. It’s a heavy-duty option ideal for camping trips, road travel, or emergency preparedness.
Six outputs, including built-in cables and wireless charging, make it easy to charge multiple devices simultaneously. The 15W fast charging support keeps top-ups efficient. The design has three input options (USB-C, micro-USB, and solar), offering flexibility in recharging. Additionally, a built-in carabiner and dual flashlights enhance practical utility for outdoor use.
While we love the convenience of the built-in cables, we wish the cables were longer because the short cables make it impossible to use your phone (or whatever is plugged in) while it’s charging. The solar panel is best viewed as a backup rather than a primary charging method since it’s slow and works best in direct sunlight. At over a pound, the power bank is also bulky compared to slim commuter-friendly options, so it’s less suited for lightweight travel or pocket carry. Still, the trade-off is worthwhile if you need reliable, high-capacity charging with versatile features in one rugged package.
Specifications
Pros & Cons
Pros
Durable
Easy to access
Innovative
IP4-rated for shock, dust, and water resistance
Cons
USB-C port cover doesn’t stay in place
Nestout hit our radar nearly two years ago and quickly proved its worth in terms of effective portable power for the outdoors. This is why the Nestout 15000mAh Outdoor Battery is currently our best overall power bank pick. Now, with the Nestout 5000mAh Carabiner Battery ($50), we are stoked and satiated with Nestout all over again. This innovative carabiner-based power bank excels in accessibility, durability, reliability, and ease of use.
Featuring a single USB-C input/output port, the Carabiner Battery can be fully charged in around two hours. It can bring your smartphone back from the dead to full power once, up to 50% a second time. The 4-stage LED display on the side of the unit shows you where you stand regarding power. Additionally, the unit has a second, smaller carabiner for cable management or hanging some rad keychains.
From the minute it arrived, tester Nick LeFort has had it hanging off his “man purse”, a Mystery Ranch Hip Monkey that he takes with him everywhere. The ability to charge his phone in his pocket on the go has revolutionized his wandering game. Paired with an AOHI Adonis USB4 2.0 240W USB-C cable (keeping the included cable in his bag as a spare), he can access his phone for random pictures, texts, and emails – all while tethered.If you’re on the go, indoors or outdoors, and anywhere else you might need power to move seamlessly with you, Nestout has you covered with its Carabiner Battery. And don’t worry about being gentle with it — we’ve beaten the heck out of our test sample, and it still looks brand new. We just wish the USB-C port cover would stay in place to protect the outlet.
Charging phone with Poseidon Pro: (Photo/Josh Kirchner)
Using Poseidon Pro as a flashlight: (Photo/Josh Kirchner)
Poseidon Pro and USB-C cable: (Photo/Josh Kirchner)
(Photo/Josh Kirchner)
Specifications
Pros & Cons
Pros
Extremely durable
Built for extreme conditions
Waterproof and fully submersible
Cons
Heavier than other batteries of similar capacity
The Dark Energy Poseidon Pro ($120) is one of the most durable power banks in this guide. According to the brand, it can be dropped from 75 feet in the air and frozen for up to 4 weeks.
Additionally, with its IP68 rating, it can be fully submerged in water for up to 45 minutes. Though we didn’t test these bold claims exactly, we used and abused the Poseidon Pro for several weeks, dropping it in the snow, tossing it loose into a backpack, and making no attempt to protect it from harm. It continues to look and perform like new.
The Poseidon Pro’s bulletproof nature does come with a slight weight increase. It’s about 3 ounces heavier than other power banks with comparable capacity. Still, that’s a small price to pay for reliable power in extreme conditions. If you’re heading to the ends of the earth, this is the right power bank to pack.
All power inputs and outputs on the Pro are hidden beneath a rugged mini door. Next to the USB-A and USB-C ports, a small LED flashlight sits. Four battery indicator lights relay the key information that users need. We managed to squeeze two full charges out of the Dark Energy Poseidon Pro with an iPhone 13 — competitive stats in the 10K mAh category.
Specifications
Pros & Cons
Pros
Impact-resistant and generally durable
Lightweight with a thin profile
Charges quickly
Low-power setting for sensitive devices
Cons
Imprecise battery life indicator lights
The Nitecore NB10000 ($60) is a lightweight, no-frills power bank that seriously impressed during testing. As one of the smallest 10,000 mAh banks on the market, it fits easily into any pocket and weighs just over 5 ounces. Those are excellent stats for a unit that fully charged an iPhone 13 two and a half times — exactly as the brand claims.
Compared to the Anker 313 Power Bank, which shares the same 10,000 mAh capacity, the Nitecore is more than two ounces lighter and boasts a rugged carbon fiber frame that caters specifically to weight-conscious backpackers. While that premium build costs more than double the Anker, a standard drop test didn’t leave a single scratch on its sleek exterior, making it an exceptional choice for outdoor use where durability and minimalism matter most.
This updated generation also offers increased USB-C output for faster charging and uses a handy “low current mode” tailored for sensitive devices like smartwatches and Bluetooth earbuds. The NB10000 can charge two devices at once and supports pass-through charging, allowing you to top off your phone while the bank itself is plugged into a wall outlet. The battery power indicator light isn’t the most precise, but that is a minor critique for an otherwise fantastic, ultralight power bank.
Specifications
Pros & Cons
Pros
Powerful enough for charging laptops and tablets
Durable casing
Wireless charging
Cons
Heavy
The Goal Zero Sherpa 100PD ($200) steps outside the typical pocket-sized range to offer a high-capacity solution for power-hungry devices. Weighing 1.5 pounds, it certainly won’t fit in your pocket, but it remains relatively compact and is an exceptional choice for airline travel or car camping where keeping a laptop charged is essential.
Compared to the Anker Laptop Power Bank 25,000mAh and the BioLite Charge 100 Max — which share similar massive capacities and laptop-charging capabilities — the Sherpa offers a unique blend of their best features. While it lacks the Anker’s built-in cables, it includes a convenient wireless charging pad similar to the BioLite. Just set a compatible smartphone on top, and it powers up without a cord. Where it beats the BioLite is its built-in display screen that keeps you informed on outgoing wattage and precise remaining battery life, which is a massive improvement over vague indicator lights.
In testing, the Sherpa charged an iPhone 13 from dead to 100% seven times using a USB-C to USB-C cord, making it roughly four times more potent than standard 10,000 mAh models. When using the wireless pad, that same phone fully charged in about 100 minutes. Most impressively, the Sherpa fully charged a MacBook Air over two times before running out of steam — providing more than enough juice for a full weekend of off-grid computing.
Specifications
Pros & Cons
Pros
Excellent value
Charges devices quickly
Easy-to-read LED indicator
Cons
A bit heavy and clunky
It’s tough to beat the performance and generous capacity of the UGREEN 145W power bank ($100) for the price. Offering 25,000 mAh of storage, this battery brick has enough juice to charge three small devices at once.
While the UGREEN may be a little hefty for backpacking, it’s great for road trips and air travel. During testing, we charged two smartphones and a Kindle all at once, and the UGREEN still had over 50% power left over.
We like that this simple power bank is free of frivolous features. It serves its purpose perfectly and doesn’t pretend to be anything more than a reliable power bank. The easy-to-read LED display allowed us to keep accurate tabs on its battery life. Its rate of power delivery is right up there with the best banks on the market, but the bank itself is fairly low to charge.
Unlike many of the smaller banks on this list, the UGREEN 145W power bank is potent enough to support a laptop. It doesn’t support Samsung Super Fast Charging, but it seems to thrive when paired with Apple products.
Power Bank Comparison Chart
ProductPriceCapacityWeightBest ForNestout 15000mAh Outdoor $6715,000 mAh13 oz.Rugged outdoor adventures and campingSkullcandy Fat Stash 2$4210,000 mAh7.1 oz.Budget-friendly pocket carryAnker Laptop Power Bank$12025,000 mAh1.31 lbs.Laptop charging and multi-device travelBioLite Charge 100 Max$18025,000 mAh1 lb. 4 oz.High-capacity remote work and traveling familiesGoal Zero Flip 24$306,700 mAh4.6 oz.Maximum portability and emergency backupAnker 313 Power Bank$2610,000 mAh7.5 oz.Slim, lightweight everyday traveliWALK Portable Charger$274,500 mAh3.2 oz.Cable-free convenience and single phone top-offsNimble CHAMP Pro$10020,000 mAh12.5 oz.Durable, high-speed dual charging for kids and campGOODaaa Wireless Charger$7036,000 mAh1 lb. 1 oz.High-capacity survival kits and off-grid road tripsNestout Carabiner Battery$505,000 mAh5.2 oz.Easy-access external bag tetheringDark Energy Poseidon Pro$12010,200 mAh9.6 oz.Extreme weather and extreme durabilityNitecore NB10000 Gen II$6010,000 mAh5.3 oz.Ultralight backpacking and thru-hikingGoal Zero Sherpa 100PD$20025,600 mAh1.5 lbs.Heavy-duty airline travel and laptop top-offsUGREEN 145W$10025,000 mAh1.1 lbs.Fast laptop charging on a budget
Six months of testing led us to create our biggest and best list yet; (photo/Nick LeFort)
How We Tested Power Banks
Our Expert Testers
GearJunkie Editor Chris Kassar led this update from her home base in Jackson, Wyoming, where portable power is essential for daily work, travel, and field time. She tests power banks while flying, road-tripping, hiking, working remotely, and even filming wildlife with her phone attached to a spotting scope. This rigorous field testing provided a clear sense of which chargers are genuinely useful and which merely add clutter.
This guide also draws on long-term data from tech expert Nick LeFort, who has spent more than a decade professionally reviewing gear, tools, and outdoor products. LeFort’s testing included daily use, family-device charging, and durability checks, giving us a comprehensive view of how these power banks hold up outside a controlled test bench.
We took power banks like the Nestout 5000 Carabiner Battery on hiking, backpacking and camping trips; (photo/Nick LeFort)
Our Testing Process & Grounds
For this update, Kassar put two new power banks through a six-month testing cycle that included flights, long road trips through Yellowstone, and day hikes across the national park. She drained and recharged each unit using phones, laptops, headphones, and other everyday electronics, paying close attention to charging speed, usable capacity, port layout, cable convenience, packability, and weight.
Every power bank undergoes at least five full charge-and-discharge cycles before making our list, though many have months or years of use behind them. Since 2021, our team of three expert testers has vetted 40 power banks for travel, camping, remote work, emergency backup, and everyday carry. We continue testing after publication and update this guide seasonally as new models arrive, older models change, and long-term durability becomes clearer.
Some of our top picks for power banks (top to bottom): B: Skullcandy Fat Stash 2 and Nestout Outdoor; (photo/Nick LeFort)
Our Power Bank Rating System
Value: We evaluate how much usable charging performance, capacity, build quality, and convenience each power bank delivers for the price.
Durability: We look at build quality, reliability over time, cable and port strength, safety features, and how well each model handles regular travel and outdoor use.
Portability & Weight: We assess how easy each power bank is to carry, pack, pocket, or travel with relative to its capacity and intended use.
Charging Performance: We evaluate output speed, input speed, device compatibility, multi-device charging, pass-through charging, and whether the power bank actually delivers the performance its specs suggest.
The overall score reflects extended real-world use and is not a simple calculation derived from the individual category scores.
The Dark Energy Poseidon Pro Power Bank is fully waterproof and extremely durable; (photo/Austin Beck-Doss)
Buyer’s Guide: How to Choose a Power Bank
Modern life runs on portable electronics, and dead batteries aren’t an option. Power banks provide a reliable power reserve: compact, rechargeable units that keep phones, laptops, and tablets running when outlets are out of reach. Power banks range from tiny keychain models to 25-pound monsters.
For this guide, we focused on the most useful category: personal-use portable banks. These weigh under 2 pounds and slip easily into a backpack. We cover everything that matters: capacity, charge times, inputs and outputs, solar options, and more. The goal is simple — help you pick the right power bank for everyday use.
What is a Power Bank?
At its core, a power bank is a rechargeable battery you can carry anywhere. Think of it as a portable wall outlet: plug in your phone, tablet, or laptop with a USB-A or USB-C cable and recharge on the go.
Just like truckers keep spare fuel cans, a power bank is your backup supply — extra energy when your main source runs out of fuel on board.
Power banks that rank in over 25000 mAh are powerful enough to charge a laptop; (photo/Austin Beck-Doss)
Size & Capacity
Power banks come in all shapes and sizes — from tiny keychain backups good for a quick boost, to massive bricks that can recharge laptops, and even power an EV in a pinch. For most people, the sweet spot is somewhere in between.
Capacity is measured in milliamp hours (mAh), which indicates how many milliamps of current a power bank can deliver per hour. Anything below 5,000 mAh is best left for emergencies, as it won’t fully charge most modern smartphones. Today, the most common size is 10,000 mAh, which typically recharges a smartphone two to three times. Models like the Nestout 5000mAh Carabiner Battery can still handle a full charge and a half. Larger units such as the Nestout 15,000 mAh or Dark Energy Poseidon Pro 10,200 mAh stretch that endurance even further, delivering three to four charges in rugged, weather-resistant builds.
The Nestout 15000mAh has a large capacity that keeps you going longer no matter how far into the backcountry you go; (Photo/Nick LeFort)
For longer trips, stepping up to 20,000–25,000 mAh offers serious utility. These power banks are heavier (around a pound) and closer to the size of a small tablet, but they can fully recharge a phone six or more times and often power multiple devices simultaneously. They’re ideal for multi-day backpacking or base camps. Models like the BioLite Charge 100 Max (25,000 mAh) can even handle laptops, while the Nimble CHAMP Pro Portable Charger (20,000 mAh) is better suited to tablets and larger devices.
For remote work, power banks keep you outside; (photo/Nick LeFort)
‘Fast Charging’ Basics
The best power banks store and release energy quickly. Paired with the right cable, every model on this list delivers strong performance.
“Fast charging” isn’t universal. Every phone, power bank, and cable has its own wattage limits. A system only charges as fast as its weakest link. For example, early iPhones shipped with 5W adapters that took over 2 hours to charge. In contrast, the Nestout 15,000mAh Outdoor Battery pushes 32W, topping off an iPhone 14 Pro in about an hour.
In general, anything above 15W can be considered fast charging. But be careful: too much power can damage small devices like earbuds or watches. Some power banks automatically reduce output to protect fragile batteries. The best products are quick to store power and equally quick to dispense it. Combined with the appropriate modern charging cable, all of the power banks on this list perform well in this aspect.
Power Delivery (PD)
“PD” is the new standard for power output. Most power banks deliver 15–25W, a sweet spot for speed and efficiency. Larger models like the BioLite Charge 100 Max reach up to 100W — enough for laptops and multiple devices at once.
We tested the BioLite across road trips, mountain stays, and daily use, and it consistently powered multiple devices without issue.
We tested the BioLite Charge 100 Max from mid-May, and it reliably charged multiple devices through road trips, mountain stays, hikes, and daily home office use; (photo/Nick LeFort)
Power Cables
The cable matters as much as the battery. A cheap $5 gas station cord won’t unlock a power bank’s potential. For instance, Apple’s standard USB-A to Lightning cable caps at 9W — slow by modern standards. High-capacity USB-C PD cables (often rated up to 100W) are now widely available and affordable. To maximize performance, pair your power bank with a proper USB-C PD cable. Some banks like the GOODaaa Power Bank Wireless Charger 36,000mAh come with multiple cables already attached, so you’re never caught out without a cable.
Larger capacity power banks require large capacity power deliver (PD) cables; (photo/Nick LeFort)
Ports & Compatibility
Most devices today use Micro-USB, USB-A, or USB-C. Micro-USB is fading, but still appears on budget banks. USB-A remains common, while USB-C is now the global standard for fast charging. USB-A ports are typically used as outputs, though some small products, such as the Goal Zero Flip 24, do have USB-A inputs, which eliminate the need for a charging cable.
Some models, like the Anker 313 Power Bank and the Skullcandy Fat Stash 2, offer multiple options: two USB-A outputs, one USB-C, plus a combo cable. A few banks even include full AC outlets — handy for laptops, air mattresses, or even blenders. Though these are less common on power banks (and really common on Power Stations)
The Skullcandy Fat Stash 2 has every possible output port style available; (photo/Nick LeFort)
Wireless & Magnetic Charging
Some larger banks, like the BioLite Charge 100 Max and Goal Zero Sherpa 100 PD, offer 15W wireless charging. It’s slower than wired charging but adds convenience. Magnetic chargers attach directly to your phone. They’re compact and usually provide just one full recharge, which is perfect for travel or daily use.
The BioLite Charge 100 Max can charge five devices, one of them wirelessly; (photo/Nick LeFort)
Pass-Through Charging
Pass-through charging lets a power bank charge itself and your devices at the same time. It’s a lifesaver when you’re short on outlets. Many of our top picks, including the Nestout 15,000mAh Outdoor Battery, support this feature.
Durability
Durability is a major factor in how brands design products for our use and abuse. Every power bank on this list passed our standardized drop-testing onto concrete from 2 feet. Most of them carry ratings that will protect the power bank from taller heights.
This type of rating is important because accidents happen. Even if you’re carrying something in a sling pack, if you drop that pack, it could impact the power bank inside. Our top pick for kids, the Nimble CHAMP Pro Portable Charger, even stood up to some extreme abuse from our two young daughters; this should speak to its durability.
Waterproofing
Depending on your needs, waterproofing may be a necessity. But, believe it or not, most power bank manufacturers aren’t overly concerned with water resistance and waterproofing. They assume that you won’t be using products in the middle of the rainforest, in a rainstorm, or rafting through the rapids.
If you plan to use your power bank for outdoor applications such as hunting, backpacking, and off-roading, we recommend one built to withstand rugged use. On this list, the Nestout 15,000mAh Outdoor Battery, Dark Energy Poseidon Pro 10200 is rated to withstand getting wet.
Overall, none of the power banks on this list will stop working if they get a couple of drops of water on them so we see no problems with you using them in the outdoors. That said, unless they’re rated for water resistance, do your due diligence to protect them from the elements.
Pro Tip: Power banks should be plugged in and charged once every few months to preserve the integrity of the battery.
The Nimble CHAMP Pro Portable Charger proved to be durable enough to handle everything our kids could throw at it; (photo/Nick LeFort)
Price & Value
The value of a power bank depends on how it balances capacity, charging speed, and durability. Spending more secures the high-wattage output required for laptops and ruggedized weatherproofing, while lower-cost models offer high value through lightweight, simple portability for phone top-offs.
Budget
In the $26 to $50 range, power banks are optimized for phones, earbuds, and daily backup. The Anker 313 Power Bank ($26) is a standout for its 10,000mAh capacity and slim, travel-friendly profile. The Skullcandy Fat Stash 2 ($42) costs slightly more but provides 20W Power Delivery and impressive battery longevity in a compact frame. This tier is the most practical choice for those who want dependable phone power without the weight and expense of a heavy-duty brick.
The Nestout 5000mAh Carabiner Battery is small, but mighty and comes at a great value; (photo/Nick LeFort)
Mid-Tier
From $50 to $100, units begin to specialize for specific environments or high capacities. The Nestout 15,000mAh Outdoor Battery ($67) earns its value through an IP67 waterproof rating and shockproof build designed for rugged camps. The GOODaaa Power Bank Wireless Charger ($70) offers a massive 36,000mAh capacity and solar backup at an approachable price point. This tier is ideal for camping and road trips where weather resistance or multi-day power is more important than a pocketable size.
Premium
Above $100, the best values are found in power stations capable of handling laptops and multiple high-draw devices. The Anker Laptop Power Bank 25,000mAh ($120) is a top pick for remote work due to its three 100W ports and precise digital display. The BioLite Charge 100 Max ($180) increases the investment but adds five-device charging and a wireless pad. These models are essential for mobile professionals and families who need a reliable power hub for a full suite of electronics.
The Skullcandy Fat Stash 2 is easy to juggle; (photo/Nick LeFort)
Frequently Asked Questions
If treated properly, the power banks on this list should perform reliably for several years. All batteries degrade with time and regular use. Most modern products can be fully charged and discharged about 1,000 times before they no longer function. For most users, this equates to 3-5 years’ worth of use.
All of the power banks on this list are relatively small and portable. The majority of users pick 10,000 mAh to 15,000 mAh power banks, a good choice for recharging a personal smartphone.
Compact 10,000 mAh options like the Skullcandy Fat Stash 2 and the Nitecore NB 10000 offer a nice balance between utility and portability. They fit in a pant pocket, and they pack enough power to keep a smartphone or satellite messenger alive for several days without a wall outlet.
If you plan to charge larger devices like a tablet or laptop, we recommend sizing up to the 20,000+ mAh range. These products typically weigh 1-2 pounds and are still compact enough for hiking, traveling, etc. On this list, the BioLite Charge 100 Max is our top choice for these situations.
The ultra-slim Nitecore NB10000 fits easily into any pocket; (photo/Austin Beck-Doss)
Most small portable option can be carried onto an airplane. According to TSA, power banks cannot be kept in checked luggage. Certain airports don’t allow passengers to travel with more than 27,000 mAh in total battery storage.
It’s been a long-standing, widely accepted fact that electricity on water do not mix. However, with electronics becoming more prevalent in our day-to-day lives, power bank manufacturers are realizing that their products will be used outside.
Power banks like the Dark Energy Poseidon Pro 10200 are designed to deliver power to your devices in the worst weather conditions. It carries an IP68 rating, and all of its ports can be covered when the device is not in use.