Features: Material: Made of ABS material wear-resistant and durable. Can install 2 18650 batteries DIY design easy to use fine workmanship long service life. Portable Rechargeable Battery: Lightweight design is very easy to carry can be repeatedly disassembled size capacity are available to meet your various needs ideal for outdoor travel use. 2 Sections Solder-free Kit: This model is a solder-free mobile power finished product (circuit board + shell) not including the battery packaging etc. Occasion: Portable DIY rechargeable battery kit is ideal for outdoor travel use for charging cell phones as well as other electronic devices. Customer Service: If you have any questions please contact us right now we will help you solve as soon as possible. Specifications: Capacity: 5600mAh Output Voltage: 5.5V+0.2V Output Current: 1A(max) Input Voltage: 5V Input Current: 1A (max) Cycle Life: > 500 times Operating Temperature: -10C-40C Storage and Transportation Temperature: -20C-50C Product Size: 98*41*22.5mm includes: 1 * Power Bank Kit "