One single cells of 2200mAh~3400mAh, assemble them with safety circuit, protect li ion battery from over over- load, over and under voltage, short circuit and temperature control. It’s commonly used for flashlight, emergency light, camera, wireless headset, and any another applications that need li ion battery as power supply.…

Li ion batteries packs are assembled with 18650 cylindrical cells to meet many special large-scale electric modules, like telecom basic station, solar energy savings, etc. Doublepow battery has more than 10 professional R& D engineers who are devoted themselves to working out the best kind battery packs for your electric modules.…