Best 4000Mah Power Banks in 2026

Quality Throughout:Built adventure-tier touch with superior durability and scratch resistance, PowerCore Slim 10000 is premium both inside and out.

Slim Size, Big Power:One of the slimmest and lightest 10,000mAh portable chargers on the market. Provides 2.25 charges for iPhone 12, 1.6 charges for Galaxy S20 and 1.2 charges for iPad mini 5.

Versatile Charging: Anker's exclusive PowerIQ and VoltageBoost technology combine to detect and deliver a tailored charge up to 12W, while the trickle-charging mode is the best way to charge low-power devices.

Precise Power Display: Always know how much capacity left when you press the power button with this digital LED display

Huge Capacity: The huge 40000mah capacity supports 8 times recharge for iPhone 11, 8.2 times recharge for Samsung S10, etc. The long-last power bank holds the power for weeks, ideal to take it for a trip, music festival, hiking and more.

18W MAX PD 3-Output & 2-Input: Charges QC-support devices up to 80% in just 35 minutes, Charge 3 devices simultaneously at maximum speed up to 3A. Only takes 16 hours to fully recharged itself with a 18W wall charger(Not included).

Power Bank has 15000 mAh ultra-high capacity can give you an excellent battery life experience. Keep Your phone running all day.Without extra worry about low phone battery.The shell adopts the imitation metal wire drawing process, which is more wear-resistant than other smooth ordinary styles. The ergonomic arc design is easy to hold and feels comfortable.

Portable Charger with 5V 3.1A 2 USB Output ports ,which can fast charge 2 devices at the same time.You can share with your companions to get rid of worries about the remaining battery power of your phone. The Type-C input and Micro USB input ports can fully refill the battery itself in 4-5 hrs at 5V 2.0A.(Note: Type-C port can only input, does not support output)

Portable Chargers are very compact ,they are not only for portable charging but also around the home making it a favorite for travel.You could benefit from these battery packs When you go out.Allowing you charge mobile devices without having to be tethered to a plug socket. You could get more convenience and happiness from these high-quality power banks.

Power bank adopts the latest Super Charger Protocol and Fast Charger Protocol. Support QC4.0+PD30W super fast charge, it only takes 25 minutes to charge your iPhone 13 from 20% to 68%, which is 3 times faster than most ordinary old power bank 10W power banks on the market.

The Portable charger has a built-in Type-C port and two USB ports, and it can charge three devices at the same time. Simultaneously charge your phone, tablet, headphones and more with one solution. Can be shared with friends to charge together.

Power bank has a large capacity of 40000mAh. Using the new high-density polymer battery, it has a larger capacity under the same volume. A single charge is enough to charge your phone for a whole week. Let you get rid of the anxiety about the battery level of your mobile device anytime, anywhere.

Power bank adopts the latest Super Charger Protocol and Fast Charger Protocol. Support QC4.0+PD30W super fast charge, it only takes 25 minutes to charge your iPhone 13 from 20% to 68%, which is 3 times faster than most ordinary old power bank 10W power banks on the market.

The Portable charger has a built-in Type-C port and two USB ports, and it can charge three devices at the same time. Simultaneously charge your phone, tablet, headphones and more with one solution. Can be shared with friends to charge together.

We only use the highest grade materials to make this power bank, from the fireproof case, the PCB motherboard with 10 safety protection designs can filter most dangers such as overcharging, over-discharging, short circuit or overheating, well-known brand super-grade lithium polymer safe battery Core, after rigorous 8-fold inspection. Just to let customers get a safe product.

Design for iPhones and AirPods: Portable iPhone charger is widely compatible with iPhone 13, iPhone 13 Pro, iPhone 13 Pro Max, iPhone 13 Mini, iPhone 12, iPhone 12 Pro, iPhone 12 Pro Max, iPhone 12 Mini, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPhone XR, iPhone 8, iPhone 8 Plus, iPhone X, iPhone 7, iPhone 7 Plus, iPhone XS Max, iPhone XS, iPhone Se, iPhone 6s, and also other iPhones, AirPods and AirPods Pro etc.

Quick Recharging And Charging: Small portable charger can be quick recharged only via its USB C input (QC 2. 0/ 3.0, FCP, AFC etc fast charging protocol), fully recharged only needs 1.5 hours by 9V-2A with its usb c input. Portable charger output supports 20W PD, thus it can perfectly quick charge iPhone 8 and above iPhones series, and will charge other iPhones at 5V normal charging speed.

Cordless Portable Charger, Plug in and Power on for iPhone: If you are iPhones fans and are tired of carrying cables, this mini cordless portable charger is definitely best choice for you. Ultra small and ultra lightweight, single unit dimensions is only 77.2*35.0*24.7mm (3.03''x1.38''x0.97''), single unit only weigh 0.2lb, and no need cables again.

【Portable Charger with Built in Cables】 High speed 5V 2A max output, the built in two cables with one USB port allows for charging your compatible iPhone and Android phone devices simultaneously without any extra charging cables.

【Compact and Ultra Slim Power Bank】 One of the smallest 6000mah power bank with cords in the market, pocket friendly mini portable charger and ultra slim with only 0.5inch for easier carry around, 6000mAh rechargeable power pack can provide you an extra battery backup for your phones anytime anywhere.

【Portable Battery Backup for Cell Phones】 The portable cell phone charger is specialized for traveling, camping or any other outdoor activities.

★Three In One: This power bank is built-in type C cable and other cables that compatible with mobile phone directly. You do not need to take charging cables.

★Credit Card Size: It is the slimmest and the smallest of MIISSO portable chargers with cables, only 0.27lb(122g) and its body like a credit card. The lightweight design lets you take it out without pressure. It's slim enough to put it in your pocket or in your handbag.

★Slim But Power: Contains 6000mAh of power. Enough to provide over an entire replacement charge for iPhone 12 and Samsung Galaxy S10, or almost 2 charges for iPhone 8. 6000mAh can meet your daily electricity demand. It will be your most important partner daily.

Fast Charging - Supplies a super fast charge at 2.1A of total output to your devices so you can spend less time charging and more time talking, texting, listening, reading or gaming!

Compact Size - Phone chargers are built for everyday use and easily fit in the plan of your hand, pocket, purse, bag or backpack; the approximate time to charge up the power bank: 2 hours

Safe Charge - 10W/2.1A portable charger features integrated circuit protection to safeguard your device from any overheating, overvoltage and short circuiting

2023 Upgraded 2-in-1 Magnetic Wireless Charger for Apple Watch and iPhone:Compatible with Apple watch series (Ultra/8/7/6/SE/5/4/3/2/1) and iPhone (14/ Pro/ Pro Max/ Plus, 13/ Pro/ Pro Max/ mini, 12/ Pro/ Pro Max/ mini) simultaneously with compact design and strong magnetic for on-the-go charging. LATIMERIA portable battery pack also supports the case with mag-safe and wired charging for other devices with Type-C input port. Say goodbye to the annoying data cables.

Strong and Snappy: Just snap this magnetic battery pack on the back of your iPhone and iWatch, no more alignment problems. The built-in strong magnets keep the portable power bank in place and prevent slipping.

On-Demand Foldable Stand: The magnetic power bank is equipped with a foldable rubber skin-feel oil coating process bracket, which allows you to set your phone standing vertically or horizontally to have a comfortable viewing, and use it as a wireless iPhone and apple watch charging station. Press the power button twice to turn it off then used directly as a phone kickstand. You'll enjoy hands-free easy viewing on the travel.

【20W PD Fast Charging】Newly upgraded 20W PD charging feature is a combination of both USB-C input/output that gives you maximum charging flexibility for a wide range of current and devices while letting you recharge your portable phone charger.

【Certifcated USB-C Cable】Comes with an USB-C cable for charging your phone or the power pack itself.

【Huge Capacity】If you want something more heavy duty to keep your phone running while you’re on the move, a 24000mAh power bank is what you're looking for.

Plug and Charge: Singular Portable Charger USB C Power Bank 4500mAh Battery Pack gives 0.9 times of charge to Samsung Galaxy Z Flip3, 0.7 times to S20 phones, Google Pixel 6 or OnePlus 9 and 9 pro phones.

Ultra-Compact: Size of a lipstick, as a mini emergency portable charger for your phone, can be taken directly to the plane.

Pass Through Technology: Empowered with it, this usb c power banks is able to charge your phones while it being charged. You can use phone while charging.

Wireless Portable Chargers: Our cute power bank fast charging is a compact portable charger for android & iPhone that operates wirelessly with no hassle outdoors! Featuring an impressive 4000mAh Li-Ion rechargeable battery, the portable power bank is compatible with multiple devices & can last 30+ hours of extended use.

Cable-Free Design: For uninterrupted & fast phone charging anywhere you go, get yourself this wireless, small portable charger power bank! Ideal for emergency & everyday use, our battery pack charger portable is sure to be part of your travel essentials.

Choose Your Compatibility: This 4000mah power bank is a 2.1A high-speed quick charging solution compatible with any device with Micro USB, USB C, & lightning device. Our portable phone charger is great for your iPhones, Samsung Phones, Google Phones, Wireless Bluetooth Earbuds, Video Game Controllers, Bluetooth Speakers, and More.

【Multi-Function Fast Charging】The 3 in 1 mini magnetic wireless power bank contain:4000mAh Power Bank+Fast Wireless Charger+Magnetic Adsorption.Support 15w/10w/7.5w/5w wireless fast charging and 18w USB-C output charge simultaneously .

【Strong Magnetic Adsorption】The mag-safe wireless charging is only available for iPhone 14/14Pro/14Pro Max/14 Plus/13/13Pro/13Pro Max/13 Mini/12/12Pro/12Pro Max/12 Mini.Built-in magnets allow your phone precisely attach on the battery pack.It can hold your device firmly without falling down，make it portable anywhere.

【Extend The Battery Capacity urgently】The wireless power bank uses a high-density customized battery to provide a real capacity of 4000 mAh, which can extend the life of the iphone in a state of emergency.It's portable to carry,compact size to fit perfectly in any purse, palm, pack or pocket.

Portable Charger Built in Cable: Built-in iphone&type-c cables allows you to charge your iPhone&android phone anytime, anywhere, no need to carry a data cable with you.

Unique Back Clip-on Design: The back clip portable charger that allows you to easily use your phone with one hand. The stylish portable external battery pack sets you apart.

Foldable Stand: Features a versatile built-in foldable kickstand that keeps your phone upright for a comfortable viewing angle.

【30000mAh Large Capacity】-Portabale charger power bank has 30000mAh huge capacity, ensures you have enough power to keep for outdoor activities or business trips .you can power up an iPhone 14 for 6,7 charges, a Samsung Galaxy S22 for 7 charges or a tablet for 5 charges. also works for other device .

【22.5W Super Fast Charging】-Battery Pack adopts the latest Super Charger Protocol and Fast Charger Protocol. This battery power bank with USB output port supports 22.5W/20W/18W Fast charger, allows your cell phone to be fully charged quickly than normal charger bank. For iPhone can be charged 58% in 30 minutes.

【Portablet Charger With built in Cables】-The Portable Charger is nice and the versatility is built in with charge cords for LT and Type-C (6 inches in length ) that are integrated into the design. The power bank immediately connected to both your iPhone and IPad Pro without issue. The unit also provides for additional USB-C and USB-A ports to connect whatever cords lengths fit your needs with your application.

Portable built-in magnet module connecting battery charger with 4000 mAh battery capacity. Powerful magnets strongly attach the Lucent Power Bank to any of our MagSafe compatible cases.

Clean design constructed of a PC body with soft-touch coating. Aluminum kickstand with a matte metallic finish. Upright viewing mode perfect for hands-free video calls or horizontal viewing mode for watching videos.

USB-C port provides up to 18w of charging power pass through. Charge light indicator so you can quickly check the Lucent Power Kickstand’s remaining power.

Portable built-in magnet module connecting battery charger with 4000 mAh battery capacity. Powerful magnets strongly attach the Lucent Power Bank to any of our MagSafe compatible cases.

Clean design constructed of a PC body with soft-touch coating. Aluminum kickstand with a matte metallic finish. Upright viewing mode perfect for hands-free video calls or horizontal viewing mode for watching videos.

USB-C port provides up to 18w of charging power pass through. Charge light indicator so you can quickly check the Lucent Power Kickstand’s remaining power.

PORTABLE POWER BANK: Wirelessly connects to your mobile device, stays in place, and is out of the way so you can move freely while recharging!

INTERCHANGEABLE ADAPTERS: This unique portable charger features the ability to change the charging adapter so it can be used with iPhones, Samsung phones, Google Phones, headphones, Bluetooth speakers, and more!

HIGH-SPEED CHARGING: This portable cell phone charger provides 2.4A of power to serve as a quick charging solution anywhere!

BUILT IN POWER BANK - Solar Qwnn Light with Built in Power Bank (4000mah Capacity)

SOLAR/USB RECHARGEABLE LANTERN. LIGHT LASTS A LONG TIME - Solar/USB rechargeable lantern with up to 40 hours of continuous battery life when charged for 8-10 hours through Solar or 4 hours through USB

EASY TO USE - Our collapsible solar led lantern is very easy to use and have a compact design. Unlike other lanterns, you do not need to inflate by mouth nozzle, you just need to turn it on and simply open it

【Wide Compatibility】Portable Charger Compatable with Samsung Galaxy S23 S22 S21 S20 S9, LG, Moto phones. Power bank is also compatible with Oculus Quest 2, Meta Quest 2, etc. Help you wake up your devices quickly.

【Real Capacity】Portable power bank is made of premium and durable battery cells. It has a large capacity of 4000mAh. 20% more battery life than other batteries of the same capacity.

【Comprehensive Protection】This portable phone charger has built-in overcharge, over-discharge, over heating protection. It can make you use it with confidence.

Ultra-Compact & Slim: DEWBU 4000mAh mini portable charger has adopted high-quality internal battery cells, so it is only 3.0*2.0*0.56 inches, which is even smaller than a credit card, you can put this slim portable charger in your pocket or handbag easily.

Battery Level Display: There is an easy-to-use power button with four blue light indicators that show the remaining power and charging status.

Wide Compatibility: The small power bank supports almost all smartphones. The type-C port can charge iPhone, iPad, MacBook, Galaxy, Huawei, Switch, DEWBU heated gloves, and other devices.

🎮UPGRADED 4000mAh EMERGENCY POWER BANK- Portable charging dock to power your phone anywhere, so you’re not tied to a wall when your phone is out of power. Playing without the fear of phone dying in a gameplay, that's a must! Hate that charging cable getting in the way when playing fierce battle royale games? We solved it for you.The triggers are set on the back not shoulder, so there is an angle and distance between index finger and the cable, it won't interfere with your operation at all.

🎮6 FINGERS OPERATION, FULL OF CHICKEN DINNER- Just use your index and middle fingers to press the L1 R1 L2 R2 triggers, that shooting, aiming, left/ right tilted head, moving, jumping, squatting and and lying operations can be performed at the same time, It will be a breeze to defeat the thumb-hold players, also a massive advantage in close range combat because difference in milliseconds can be life or death. No disconnection, response delay, root request or system incompatibility issues.

🎮QUIET COOLING FAN & 180° FLIP TOUCH HEAD- Rotatable touch head for easy installation of the phone and setting buttons. The high conductive silicone head is smaller and more sensitive than other grips, it won't obscure the game map. Alloy L2R2 buttons are tested over 100,000 times to ensure durability and fast responsive. The powerful cooling fan with switch button protects your smart phone from overheat and reduce heat lag, prolong the service life of the phone and battery.

Strong and Magnetic: The super-strong magnet snaps magnetically into place to ensure perfect alignment and an efficient charge.

Slim and Compact: The sleek and slim design is only 0.5 inch (12.8 mm) thin, so you can single-handedly take calls, selfies, and more (and weighs only 4 oz).

From Small to Smaller: Casely's new Mini Cell technology reduces the size of the overall battery without compromising power and charging efficiency.

[Small but Powerful] Weighing 108g with a thickness of 0.55in, this portable power bank is smaller and lighter than the official Apple Mag Safe Battery Pack but with more battery capacity (4000mAh).

[Comfortable to Hold] The power bank with an ergonomically designed curve fits comfortably in your hand.

[Human-centered Design] Features low-battery vibration mode and LED battery indicator. (Note: Turn on the power button before use.)

🔋【PD 20W Fast Charging Power Bank】: It is compatible with almost all Android, iPhone, tablet and more electronic devices on the market, and can provide fast charging for most phones with fast charging function. The green lightning sign lights up, indicating that the fast charging function has been activated. It can charge the iPhone from 0% to 55% in about 30 minutes.

🔋【Multi-port Portable Charger 26800mAh】: It supports three devices to charge at the same time, and provides three input ports. Type-C is two-way fast charging, and the side Lightning input port is very convenient for users who use the iPhone USB-C fast charging power adapter, because you only need to carry a fast charging cable to realize two-way fast charging during the trip.

🔋【Phone Charger with LCD Display】: LCD mini display clearly shows the percentage of available power and charging status. Compared with the large screen, the only micro display will not consume additional power. Fashionable appearance design and frosted fabric bring comfortable feel, firm and durable.

➤[Built In Cables] Portable charger with built in cables fast charging iPhones, Samsung, Google and other Android phones directly. Power bank with cables set you free from messy cords and help you traveling light on-the-go.

➤[High Capacity] 10000mah battery capacity enough to top up iPhone 14/13/12/11/X/XS/X 2.5 times or Samsung S10 2.1 times, as well as iPad Mini 1.5 times. Real battery capacity allows you to share portable power with families and friends.

➤[Super Compact Charger With Cables] Power bank built in two cables compatible with iPhone and Type-C phone. You can charge cell phones with the built in cables directly and don't need to bring messy cables when you're out.

[Ultra-Compact Size Power Bank]4500mAh portable phone charger is only 0.33lb(150g) 3.98*2.7*0.55 inch. Small and lightweight external battery pack is easier to put in any pocket or handbag. Own this 4500mAh power bank, no worry about phone battery drain.

[Upgraded Version Built in Cable]Small battery pack upgraded with one built in cable, specially designed for iPhone users. It's widely used for charging all iPhone models, like iPhone14,13,12,11 Pro,XS,XR,X,Pro Max,SE,8,7,6,and more.

[USB C Fast IN/OUT Portable Charger]Portable charger equipped with one USB C port, which supports fast in & out, fast fuel cell phones in a short time. Also fast recharged this portable charger in only 2 hours.

【Multifunctional Power Bank】: Our power bank is a versatile device that can serve as a mobile phone battery, USB charger, built-in Type-C and PD fast cable, and smartphone holder. With its high capacity, compact size, and range of uses, it's perfect for business trips and travel.

【PD20W Fast Charging Cable for Quick Boost】: Our mobile phone battery features a PD20W and Type-C fast charging cable that delivers twice the speed of traditional products. Even while on the go, you can enjoy convenient fast charging using the built-in cable. The USB port also supports up to 22.5W and various fast charging standards.

【Built-in AC Plug and Type-C Input Port】: Our power bank comes with a folding plug for quick charging when an outlet is available. With the PD3.0-compatible Type-C input port, it can be fully charged in just 4.5 hours using a PD18W charger and data cable. Our power bank enables faster charging compared to traditional large-capacity mobile phone batteries.