Power bank uses 4x AA batteries. Battery: 4x AA batteries (Not included). Suitable for charging other devices like bicycle light, USB fan, USB light, etc. Cable connector: USB Type A female. Aluminium alloy shell.
eBay
DIY 16V 4S Power Wall Battery Holder 18650 Battery Pack with 4S 30A BMS 4S1P 4S2P Battery box/storage
Aliexpress UK
Consistently Mini Size: upgraded to high-quality battery core, thus, the capacity has increased to 4500mah but the size has not changed much. It is very small and fits in the pocket, pocket, clutch bag or purse handbag etc.
eBay
2pcs 3*7 18650 Lithium Battery Combination Holder Buckle Battery Pack Holder Cylindrical Li-ion Cell Fixture Bracket Part 18.5MM
Aliexpress UK
Our promise is to provide with the very best products. With a wide range, good quality, reasonable prices and stylish designs.
eBay
1-10pcs Original LISHEN LS LR2170LA 21700 Lithium Ion Battery 4000mAh 5C High Rate Cell For power Tools Battery Pack
Aliexpress UK
Power Bank 66W Fast Charging Portable Charger External Battey USB Product Description Features: LCD digital display, easy for you to monitor the real-time battery bank capacity. Made of premium material, it is wear resistant and durable. Portable design, convenience to carry, small volume design is very easy to carry. Specifications: Material: PC Type-C Input: 5V2A/5V3A/9V2.2A/12V1.6A Type-C Output: 5V2A/5V3A/9V2.2A/12V1.6A USB Output: 5V2A/5V3A/5V4.5A/4.5V5A/9V2A/12V1.5A Precautions: 1. The battery cannot be used if its outer skin is damaged. .
eBay
2S 3A Li-ion Lithium Battery 7.4v 8.4V 18650 Charger Protection Board bms pcm for li-ion lipo battery cell pack
Aliexpress UK
Versatile Multi-Device Charging. - USB-C Port: 5V⎓2.4. - USB-A Port: 5V⎓2.4A. Total Output Capacity: 5V⎓2.4A, 12W Max.
eBay
1M 0.15x27mm 2P Nickel Plated Steel Lithium T2 Copper Battery Strip Li-ion Batteries Used for 18650/21700 Battery Pack Welding
Aliexpress UK
Built-in security devices protect your devices from excessive power, overheating, and overcharging. LED Display: The device also features an intuitive LED display, which clearly shows the remaining power level and charging status.
eBay
18650 cell battery holder flat head dislocation bracket compact bracket can be spliced, module battery pack bracket
Aliexpress UK
Stay powered up wherever you go with theUniversal 4USB Power Bank Series. DIY Power Bank Case (Without Battery) – Compatible with 6x18650 batteries for customizable capacity. Output: 2x USB (5V/1A), 2x USB (5V/2.1A).
eBay
5PCS 2S 3A Li-ion Lithium Battery 7.4v 8.4V 18650 Charger Protection Board bms pcm for li-ion lipo battery cell pack
Aliexpress UK
Output: 4 Ports DC 5V 1Amp/ 2 Ports DC 5V 2.1Amp. Input: DC 5V 2Amp. The sleek and stylish design is slim enough to fit into any bag or even your pocket. 1 x Power Bank. Includes a built-in flashlight, you can use it when light is needed.
eBay
3/4.5/6V AA / AAA Battery Eliminator With Switch Battery Pack Voltage Adaptation Fake Battery for Clock Toys Lights
Aliexpress UK