Description:Very suitable for your mobile phone， can solve the problem of mobile phone suddenly without electricity for you.Ii is the best choice for back-up power.Type: Li-IonOutput Voltage: 3.8VCharging voltage limit: 4.35VCapacity: 3000mAh Compatible with: DOOGEE Y100 Plus Smartphone<br>Package Included:1 x 3000mAh Battery for DOOGEE Y100 Plus