10 Best 18650 Power Bank 21 In The Us - Black Friday 2024
POIYTL Power Bank 60000mAh 22.5W Fast Charging Portable Charger USB-C Quick Charge with 4 Outputs & 3 Inputs LED Display Huge Capacity External Battery Pack for Most Electronic Devices on The Market
Main highlights- 【What You Get】60000mah Power Bank, USB to USB-C Cable, User Manual, Our worry-free 36-month warranty, and friendly customer service.
- 【Thoughtful Design】Smart LED digital display, accurately keep track of remaining juice, allowing you to easily operate your power.
- 【Simultaneous Charging】With 3 USB-C output and 1 TYPE-C（Support IN/OUT）, 1 micro input, 1 lightning input, you can now charge up to 4 devices at once without sacrificing power; Our battery pack compatible with your smart phone, tablet computers, mini speakers, bluetooth headsets, cameras, handheld game consoles and other USB electronic devices.
- 【High-Speed Charging】(POIYTL portable charger) Equiped with 22.5W USB-C port to charge iphone X up to 60% in half hours. In the meanwhile, built in quality batteries and comprehensive multiprotect safety system, include overcharge protection, short circuit protection, temperature control, and more, ensure complete protection for you and your devices.
- 【Colossal Cell Capacity】The 60000mAh power bank provides 12 charges for iPhone11, 12 times for Samsung S10. Depending on battery size, most smartphones will get over 12 full charges. Suitable for camping, hiking, vacation, travel and more.（NOTE: The 60000mAh POWER BANK ARE NOT ALLOWED ON AIRPLANE！！）
9.8Exceptional
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Value for Money2
Bextoo23% OffPortable Charger Power Bank 50000mAh, 22.5W Fast Charging Battery Pack, USB C Quick Charge 3 Outputs & 2 Inputs, LED Display, External Cell Phone Battery Bank for iPhone 16/15/14, Samsung, Android
Main highlights- What You Get: You will get 50000mAh external battery power bank*1, Type-C Cable*1, user manual*1, 18 months support. If you encounter any problems about the phone charger battery pack portable, please feel free to contact us to solve them. (Note: The 50000mAh power bank may not be allowed on airplanes; please check with your airline beforehand)
- Ultra-High Capacity 50000mAh Portable Charger for a Week: The 50000mAh power bank can charge an iPhone 15 up to 12 times and a Samsung S22 up to 13.5 times. Ideal for camping, hiking, fishing, concerts, travel, work, and other activities or home emergencies, this big capacity battery pack charger portable is perfect for families or individuals with multiple devices, providing a reliable power source wherever you go
- Safe and Powerful Portable Battery Pack: The 50000mAh portable cell phone charger includes premium battery and comprehensive multi-protection safety system, ensuring safe charges for your devices. Portable Charger equipped with smart chips to prevent overcharge, overvoltage, overcurrent, high temperature, and short circuits, it offers enhanced protection for you and your devices (Note: Powerbank has a 24H charging protection. If it exceeds 24H, the charging will be terminated and you need to unplug and plug it in to recharge)
- Multiple Charging Ports 3 Outputs and 2 Inputs: Cell phone external battery pack fast charging 3 devices simultaneously via USB1/2 outputs and a two-way Type-C port. Share the power quickly with friends and family. Portable power bank widely compatible with smartphones, tablets, cameras, smartwatches, Bluetooth headsets, and other USB devices, portable charger supporting both Micro and USB C inputs for flexible charging cables
- Latest USB C (22.5W) and iOS (20W) Super Fast Charging Power Bank: The Bextoo battery pack usb c features the latest chipset supporting a range of fast-charging protocols, including PD4.0 and QC4.0. With a maximum output power of 22.5W and an input power of 18W (Need to use fast charging cable), it can charge an iPhone 15 from 0% to 60% in just 30 minutes, up to 3 times faster than most traditional portable phone charger
- High-Precision LED Digital Display Portable Battery Charger: Featuring a high-precision LED digital display, this portable charger provides accurate power readings down to 1%. Easily monitor remaining battery life, ensuring peace of mind while traveling or outdoors. The weight of the power bank 50000mah is 1.17 lb and the dimensions are 1.2x2.9x6.2 in. Battery bank durable, compact design and a unique touch for ruggedness and a longer service life
9.6Exceptional
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3
BUDIBUDI 20W Portable 18650 Battery Fast Charger, Suitable for 3.7V Lithium-ion 18650 Rechargeable Battery 20W Dual Type-C Fast Output(Not Including Battery)
Main highlights- What You Will Get:18650 charger_X1 USB-C data cable_X1 thimble_X1 lanyard_X1 Note: Please confirm the positive and negative poles of the battery (+ -), do not mix with old batteries or different types of batteries to avoid causing The battery leaks or explodes. This product does not include 18650 battery TFSIM Nano card.
- USB-C PD Charging:USB-C PD battery charger can help travelers charge lithium-ion batteries anytime and anywhere, especially if you don't have enough sockets, you can even plug it into your laptop, computer, car charger, mobile phone adapter, or other USB output device for charging.Body size: L174.1XW51XH29.5 (mm) Body weight ~152g
- USB-C PD 18650 Battery Charger:USB-C PD powered universal smart 18650 battery charger with four independent charging slots, PD USB-C input/output: 5V=3A 9V=2.22A 12V-1.67AOC USB-C output : 5V=3A 9V=2A 12V=1.5AD Dual USB-C Output ID: 5V=3A supports 4 slots of simultaneous independent charging without affecting
- Safety Guaranteed : Equipped with special charge and discharge management circuit. The charger has multiple safety protection settings that can effectively prevent battery damage from reverse connection, short circuit, overcharge, over-discharge, and over-current, allowing users to use the product without any safety concerns.
- Reversible output current charger: It can be used as a 20W Reversible output current charger after putting in 4 18650 batteries, and you can replace the exhausted batteries with brand new 18650 batteries at any time to ensure continuous power supply for your device. Supports Quick Charge 3.0 technology, suitable for charging QC3.0 certified cell phones and tablets, charging speed can be increased by 4 times. Quickly charges QC3.0 smartphones up to 80% in 35 minutes.
9.4Excellent
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4
MOUDOAUERCharging Bank Solder Free Kit with LED Flashlight, Plastic Power Bank Box for 21x18650 Battery, DIY Charging Case Accessory
Main highlights- The shell is fixed with screws and can be disassembled and batteries replaced at any time, unlike the general non-detachable DIY cases.
- Power display/power button, 4 * USB output ports + 1 * MICRO interface + 1 * compatible for iOS interface + Type-C interface.
- Handle design, easy to carry, suitable for home use, outdoor enthusiasts, DIY enthusiasts, etc. Easy to operate and easy to disassemble.
- Equipped with 9 LED beads at the bottom, it can be illuminated in three modes. Press and hold the button for 2 seconds to turn it on/off, and then click again to switch between slow/fast/constant light modes.
- Can accommodate 21pcs 18650 batteries (flat top). (Batteries not included)
9.3Excellent
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5
BistookBistook 4pcs 18650 or 21700 Charging Module Dual USB 5V 3A Mobile Powerbanks Module 18650 Lithium Battery Charger Board with Overcharge Overdischarge Short Circuit Protection DIY USB Battery Pack
Main highlights- 5.Helpful Tips & Satisfactory Service: This product is suitable for DIY. If there are any issues with the product, it can be returned within 30 days of receipt in its original condition for a full refund or replacement. If you have any questions, please contact us.
- 4.Convenience: The charging module supports 18650, 21700 lithium batteries, or polymer lithium batteries, enabling quick DIY for creating your own power bank or battery charger. It outputs a maximum current of 5V/3.0A, convenient for powering devices with larger battery capacity, such as mobile phones and tablet computers, offering flexibility and convenience anytime, anywhere.
- 3.Protocol Protection: Includes safeguards such as overcharge protection, overdischarge protection, short circuit protection, and constant current.
- 2.Four Ports: The charging module is designed with four ports, including 2 USB-A output ports, 1 USB-Micro input port, and 1 USB-C input/output port. The USB-C supports a maximum input and output of 18W, compatible with PD3.0 18W. USB-A1 outputs support 5V3A, 9V2A, 12V1.5A, and support QC3.0/2.0, AFC, FCP, PE1.1/2.0, BC1.2-DCP protocols at 5V1.5A. USB-A2 outputs APPLE 5V0.5A, BC1.2 DCP 5V1.5A. The USB-Micro input port supports 5V 10W (Max).
- 1.Digital Battery Level Display: Equipped with a digital battery level display, capable of showing a range from 0-100%. Press the button to conveniently view the battery level indicator.
9.1Excellent
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6
DAGIJIRDDIY Power Bank Box Battery Charger Case, Plastic Shell Box 21x18650 Battery Storage Box
Main highlights- The shell is fixed with screws and can be disassembled and batteries replaced at any time, unlike the general non-detachable DIY cases.
- Power display/power button, 4 * USB output ports + 1 * MICRO interface + 1 * compatible for iOS interface + Type-C interface.
- Handle design, easy to carry, suitable for home use, outdoor enthusiasts, DIY enthusiasts, etc. Easy to operate and easy to disassemble.
- Equipped with 9 LED beads at the bottom, it can be illuminated in three modes. Press and hold the button for 2 seconds to turn it on/off, and then click again to switch between slow/fast/constant light modes.
- Can accommodate 21pcs 18650 batteries (flat top). (Batteries not included)
9.0Excellent
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7
abovehillAbovehill 18650 Mobile Battery Box with LED Light and Battery Indicator,Dual USB and DC Outputs for iPhone and Android Phones
Main highlights- 5.It is equipped with 4 LED lights to display the current battery margin. Also equipped with a 5mm LED emergency light, you can bring light to you in the wild or in the dark. A variety of uses, let you like it more.
- 4.The charging and discharging part of the main control chip adopts a synchronous rectification circuit, which improves the conversion efficiency and greatly reduces the heat generation. Output current limit protection, when the rated output current is exceeded, the output voltage is automatically reduced to protect the circuit.
- 3.It is also equipped with a separate DC output port that can be adjusted with four gear positions (3.8/6/9/12V). The USB port and DC port can be used at the same time without mutual interference.
- 2.It comes with two USB output ports for Apple and Android phones. Resolved compatibility issues for charging most phones. There is an image label at the output port, which is convenient for selecting the correct port to replenish the battery in time.
- 1.It is an 18650 battery case and a mobile power box. It requires to install 6 18650 rechargeable batteries. The installed battery can be charged directly via the charger. Input voltage is 5V, current is 1A-2.1A
8.7Very Good
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8
XBERSTARXBERSTAR 18650 Power Bank case,Li-Ion Battery Storage Box -18650 Holder for Uninterrupted Power Supply UPS DIY Battery Special Plastic DIY kit (set1)
Main highlights- You will get;3S 40A BMS -US Charger -18650 Li-Ion Battery Holder -Pure Nickel Strip(not include batteries )
- Installation: Easy and simple to use and operate, no other tools needed to install.Install the battery according to the positive and negative sides on the circuit board. Be careful not to reverse it.
- High quality battery holder case with wire leads for easy soldering and connecting.Each battery holder comes with a case cover for keeping the battery in place
- Attention: There is a specific product description on the picture, please read it in detail.
- Attention: Do not mix the good battery and poor battery to use. The internal resistance of 3 battery capacity are closer will be better.
8.6Very Good
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9
LBFButton Top 3.7V 5000mAh Lithium-ion Rechargeable Battery Type-C Input/Output Protection Circuit Built-in Large Capacity 3.6V Replacement Battery for LED Flashlight, Headlamps etc(2 Pack)
Main highlights- 【Secure and Reliable】The highest quality, the happiest customer. LBF Protection Circuit Built-In Battery features six types of protection, including temperature, short circuit, overcharge, and overcurrent protection.
- 【Rechargeable 1000+ Times】 A single 3.6 Volt rechargeable battery can recharge up to 1000 charging and discharging cycles and no memory effect. Replace 1000+ disposable alkaline batteries, reduce the waste of resources and good value for the money.
- 【Large Capacity】 LBF 3.7V battery with a capacity of 5000mAh and voltage of 3.7V, high capacity battery with low self discharge rate, high power consumption, high energy density and pollution-free design, No need to charge batteries frequently.
- 【Battery Specification】Battery type: Button Top PCB Protection Circuit Built-In, Capacity: 5000mAh(5Ah), Wh Rating: 18.5Wh, Voltage: 3.7V, Size: 21.5*75.2mm(0.85*2.96 inches), Feature:Type-C Input/Output, Quantity: 2 Pack. This product is NOT sold with restricted lithium-ion standalone batteries. This product does NOT include lithium-ion battery types: 14500, 16340, 18650, 20700, 21700 and 26650
- 【Applicable Device】LBF 21C70 lithium ion battery for led flashlights, headlights, bicycle lights, emergency lights, work lights, loudspeakers, Instrumentation. The USB-C Input/Output battery can be used as an emergency power bank to charge your phone or other devices. It's 21.5*75.2mm, not 21*70mm. Please check whether it is the battery you need before purchasing.
8.4Good
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10
POIYTL15% OffPOIYTL 50000mah Power Bank 22.5W Fast Charging Portable Charger USB-C with 4 Outputs & 2 Inputs LED Display Huge Capacity External Battery Pack for iPhone, Samsung, iPad etc
Main highlights- 【What You Get】50000mah Power Bank, USB to USB-C Cable, User Manual, Our worry-free 24-month warranty, and friendly customer service.
- 【Thoughtful Design】Smart LED digital display, accurately keep track of remaining juice, allowing you to easily operate your power.
- 【Simultaneous Charging】With 2 USB-C port（Support IN&OUT）, 2 USB ports, you can now charge up to 4 devices at once without sacrificing power; Our battery pack compatible with your smart phone, tablet computers, mini speakers, bluetooth headsets, cameras, handheld game consoles and other USB electronic devices.
- 【High-Speed Charging】(POIYTL USB C portable charger) Equiped with 22.5W USB-C port to charge iphone X up to 60% in half hours. In the meanwhile, built in quality batteries and comprehensive multiprotect safety system, include overcharge protection, short circuit protection, temperature control, and more, ensure complete protection for you and your devices.
- 【Colossal Cell Capacity】50000mah power bank provides 10 charges for iPhone11, 10 times for Samsung S10. Depending on battery size, most smartphones will get over 9 full charges. Suitable for camping, hiking, vacation, travel and more.（NOTE: The 50000mAh PORTABLE CHARGER ARE NOT ALLOWED ON AIRPLANE！！）
8.3Good
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