Description: It is very suitable for your mobile phone, can solve the problem of mobile phone suddenly without electricity for you. High quality.best price.fast delivery and good after-service. Is the best choice for back-up power. Type: Li-Ion Output Voltage:3.8V Capacity: 2500mAh Compatible with: Lenovo A816 Smartphone Package Included: 1 x Battery for Lenovo A816 More Details: