Best Credit Card Size Power Bank in 2022 [*Top Picks*]

Looking for the best credit card size power bank on the market? We’ve got you covered. Check out our ratings of absolute bestsellers below and make a final decision.

2927 Reviews Scanned

  • 6000mah Ultra Slim Built in Cables Power Bank, Card Size Built in USB C Cords Battery Pack Portable Charger for Phones, 3 Output External Battery Pack Compatible with iPhone, Samsung, Google and More
    Bestseller #1
    6000mah Ultra Slim Built in Cables Power Bank, Card Size Built in USB C Cords Battery Pack Portable Charger for Phones, 3 Output External Battery Pack Compatible with iPhone, Samsung, Google and More (96)
      ★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. ★Charging for 3 Devices at The Same Time: With two cables and one USB output ports , which can power up to 3 smartphones at once. Fully charging the battery charger takes only 2.5-3 hours with a 2A charger, when you are traveling or on a business trip that will be helpful. ★What You Get: 6000mAh Battery Charger x 1, Micro USB cable x 1 and User Guide x 1.
  • ChargeCard. Ultra-Thin Credit Card Sized Portable Charger & Battery Bank. (2300mAh/ 1.5A Fast Charge). External Battery Phone Charger That has Interchangeable Cables (Lightning, USB-C, Micro USB)
    Bestseller #1
    ChargeCard. Ultra-Thin Credit Card Sized Portable Charger & Battery Bank. (2300mAh/ 1.5A Fast Charge). External Battery Phone Charger That has Interchangeable Cables (Lightning, USB-C, Micro USB) (56)
      🤏 Ultra-Thin Credit Card Size Charger- Fits in Your Wallet 🔌 Built in Charging Cables (Apple, Android, Micro USB) 1.5A Fast Charge 💡 LED Power Indicator Lights 💪 Stainless Steel Design & Fast Charge Technology (2300mAh) 3.3" x 2.2" x 0.18" (2.1oz)
  • TNTOR 5000mAh Ultra Slim Portable Power Charger Credit Card Sized Ultra Thin Power Bank 5V Backup Battery Pack Compatible with iPhone
    Bestseller #1
    TNTOR 5000mAh Ultra Slim Portable Power Charger Credit Card Sized Ultra Thin Power Bank 5V Backup Battery Pack Compatible with iPhone (61)
      ✔【Slim Than Ever】Only 0.24 inch thin, easy to stow in your pocket or wallet.4.84*2.6 sized small, 4.05 oz ultra-light, 115 gram lighter than your phone 12. Lighter and smaller than any other power bank of the same type on the market. ✔【High Performance Battery】5000mAh premium cell phone battery cell: 2x Charging speed,Compatible with iPhone All Model ,also Samsung Huawei Xiaomi HTC etc all Android phone is acceptable. ✔【Technical Security】Output: 5V / 2A, Input: 5V / 1.5A.Premium battery cells and Smart IC. Several protection circuits provide protection against short circuit, overheating, overdischarge and overcharge. CE, FCC, RoHS, PSE certified. ✔【High Capacity】TNTOR 5000mAh Power Bank can charge 9 times for AirPods, 2 times for iPhone 8, 1.3 times for iPhone 12, 1.1 times for Galaxy Note8. ✔【Wonderful Design】Triangular buckle design, you can fasten the keychain to the power bank, which is very portable for travel and business trips. Recharge Anytime and Anywhere. ✔【What's You Get 】5000mAh phone charger*1, Input & Output Charging Cable *1, User Manual*1, 12-month warranty and friendly & outstanding customer service.
  • TNTOR Ultra Slim Power Bank 2500mAh, The Most Lightweight Battery Bank and Thinnest Portable Phone Charger - Credit Card Sized, with Built-in Cable, only Compatible with iPhone Series
    Bestseller #1
    TNTOR Ultra Slim Power Bank 2500mAh, The Most Lightweight Battery Bank and Thinnest Portable Phone Charger - Credit Card Sized, with Built-in Cable, only Compatible with iPhone Series (58)
      🔋【Design for Emergency 】: This Wallet Sized Power Bank is designed for Emergency, It works perfectly with iOS devices and allows on the go use. 🔋【Details of the Upgrade】: 10% better battery performance than the previous generation. Added more easily recognizable battery indicator than the previous generation. 🔋【On the Go】: Size 91mm*64mm*4mm, Weight:57g. Packed with Built-in Cable, the portable power bank comes in an ergonomic design that offers maximum ease of use. Now, you can charge your phone on the go; just PLUG in and CHARGE! 🔋【VERSATILE USE】: Designed to serve as the perfect all-in-one solution to on the go charging. 🔋【OUR PROMISE】: We have designed this portable power bank to offer an efficient combination of quality engineering and lithium batteries which see it provide maximum ease of use, durability and safe charging. Backed by our 1 Year Service, we are sure you will love the level of efficiency this battery backup has to offer.
  • Auskang Ultra Thin Power Bank External Battery Backup Charger with Built in Cable 2500 mAh Slim Credit Card Sized Portable Battery Bank Compatible with iPhone
    Bestseller #1
    Auskang Ultra Thin Power Bank External Battery Backup Charger with Built in Cable 2500 mAh Slim Credit Card Sized Portable Battery Bank Compatible with iPhone (61)
      Size: 3.54*2.52*0.16inch, Weight: 2.34oz. Input: 5V/1A, Output: 5V/0.8A. Size of a credit card,not need a cord it’s easy to slip in your pocket or your purse and when you need it you have a charger right then and there.Suitable for daily work, business and travel. 100% Brand new And High Quality Battery Made. 2500mAh high quality lithium polymer cell, which can charge earphone 5 times,compatible with iPhone model. LED digital screen display, the remaining power can be known at any time. Simple appearance, Piano paint-like texture, business design, ideal for business and commuting. Mobile power, safety technology certification, Built-in advanced intelligent protection system. Protect the phone from over current, over heat, over charge, over voltage and short circuit.
  • Ultra-Slim Ultra-Portable Ultra-Safe 2500mAh Wallet Pocket Power Card Power Bank, ONE-for-All External Mini Battery for Most Smart Phone and Digital Devices(White with Lightning Adapter)
    Bestseller #1
    Ultra-Slim Ultra-Portable Ultra-Safe 2500mAh Wallet Pocket Power Card Power Bank, ONE-for-All External Mini Battery for Most Smart Phone and Digital Devices(White with Lightning Adapter) (166)
      Ultra-slim: Similar Poker size with only 1/4 inch (6mm) thickness Ultra-Portable: One-to-Go and One-for-All design, Build-In micro USB cable, and iPhone 5/6 Adapter Ultra-Safe: NO Risk of ON FIRE nor EXPLOSION; Smart Control Tech, no Short-Crcuit, Over-Charge nor Over-Current for BOTH your devices and battery Important Call Saver: NO power off, NO open your phone, NO stop, just Plug in and Continue FCC-Vertificated, CE-Vertificated, RoHS-Vertificated, CCC-Vertificated, One year Warranty.
  • Attom Tech 2500mAh Power Bank Mini,Back-up Phone Battery Pack Ultra Slim,Pocket Size Thin External Phone Battery Pack Emergency Phone Power Built-in Charging Cable for Android Micro USB and Apple(WHT)
    Bestseller #1
    Attom Tech 2500mAh Power Bank Mini,Back-up Phone Battery Pack Ultra Slim,Pocket Size Thin External Phone Battery Pack Emergency Phone Power Built-in Charging Cable for Android Micro USB and Apple(WHT) (1738)
      [Thin but Powerful, Card Size and Light Weight] - 0.25" x 3.8" x 2.5", Only 0.15 lbs. Perfect for every day use. Take it with you for one extra battery charge for most phones. [Dual Built-in Charging Cables, i-Products and Micro USB] - No need to take the charging cables for android and Apple devices as they are already inside the power bank. [Ultra Safety] - Intelligent Control Circuit which protects your devices from over-charging, over-current, over-voltage, short circuit and more, ensures your safe and stable charging. This device is also certificated by FCC, CE, CCC, Rohs. [Charging Capacity] - iPhone6/7/8 1.1 times, iPhone Plus 0.8 times, Samsung S8 0.7 times (Type- C adapter buy separately). It's a perfect backup power for your daily phone use. [Warranty] - 1 Year Attom Tech Warranty. 100% MONEY BACK GUARANTEE
  • Portable Charger Power Bank 30,800mAh LCD Display Power Bank,25W PD Fast Charging +QC 4.0 Quick Phone Charging Power Bank Tri-Outputs Battery Pack Compatible with iPhone,Android etc(Black)
    Bestseller #1
    Portable Charger Power Bank 30,800mAh LCD Display Power Bank,25W PD Fast Charging +QC 4.0 Quick Phone Charging Power Bank Tri-Outputs Battery Pack Compatible with iPhone,Android etc(Black) (239)
      【Super-Fast Charging】portable charger Power bank high capacity The 30,800mAh power bank could charge your phone at least 6-8 times, Suitable for business, travel, going out, you don't have to worry about your phone low battery. [Note:High capacity so the products weight 350g] 【Import Intelligent Controlling IC】 The portable charger adopt Import Intelligent Controlling IC to prevent power bank overcharge, overvoltage, overcurrent and short circuit. [CE certified] make sure product quality is safer. 【3 Output -Charge 3 Devices At Once】Power bank with 3 Output Ports - QC4.0 output, PD output, 2.1A USB output, you can charge 3 devices simultaneously.Power Delivery 4.0 output and Quick Charge 4.0 output combine to deliver an optimized charge to your devices at up to 25W. Compared with non-fast charging power bank, save more than half of the time. 【Universal Compatibility LCD display】 portable charger is universally compatible with all products via USB charging cable, including all iOS and Android smartphones, tablets, other devices and so on. LCD display shows current battery charge ,input and output status, no more guessing whether need to charge it or not. 【Full 24 Month Warranty & Worry-Free Purchase】- You will get 30,800mAh power bank [Charge your phone 6-8times] , User manual, Micro USB cable [Not include Type C cable], AND 24 month warranty policy and 24 hours friendly customer service.
  • TG90 Portable Charger 6000mah External Battery Packs, Ultra Slim Power Bank with Built-in Cables Portable Phone Charger, USB C Portable Battery Charger Compatible with iPhone Android Cell Phones
    Bestseller #1
    TG90 Portable Charger 6000mah External Battery Packs, Ultra Slim Power Bank with Built-in Cables Portable Phone Charger, USB C Portable Battery Charger Compatible with iPhone Android Cell Phones (286)
      【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 Charger with Flashlight】 The portable cell phone charger is specialized for traveling, camping or any other outdoor activities. Built-in flashlight for emergencies or when a light is needed, long-press to turn on/off the led flashlight. 【Intelligent Safety Protection】 High quality Li-polymer cell with multi-protect system microchips. Supports over-charged, over-discharged, over-voltage, over-current and short circuit protection; Supports 500+ recharge cycles over the life of the battery. 【What's You Get】 1 * 6000mAh Portable Charger, 1 * USB Charging Cable, Worry-free 12-month warranty and friendly customer service.
  • 5000mah 0.22lb/100g Pocket Size Portable Charger Power Bank External Battery Pack for Cell Phone Compatible with iPhone 6/7/8/Xs Max/XS/XR and Other Smart Devices
    Bestseller #1
    5000mah 0.22lb/100g Pocket Size Portable Charger Power Bank External Battery Pack for Cell Phone Compatible with iPhone 6/7/8/Xs Max/XS/XR and Other Smart Devices (34)
      ★Real Capacity of Portable Charger: For this 5000mAh power bank, it can recharge your iPhone 7 2 times, iPhone 8 2.2 times, iPhone X 1.5 times, Galaxy S9 1.2 times. ★Dual Charging 5V 2A: This 5000mAh battery charger has 2 USB output ports , which can power up to 2 smartphones at once. ★Fast Recharge: Fully charging the battery charger takes only 2.5-3 hours with a 2A charger, when you are traveling or on a business trip that will be helpful; ★0.22lb(100g) Body & Slim Like a Card: The lightweight design lets you take it out without pressure. It's easy to put it in your pocket or inn your handbag. 5000mAh can meet your daily electricity demand. It will be your most important partner. ★Package:5000mAh Battery Charger x 1, Micro USB cable x 1, 1 x User Guide & Free 18 Month Warranty.
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