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-Ion Output Voltage: 3.7V Charging voltage limit: 4.2V Capacity: 2500mAh Compatible with: DOOGEE DG580 Smartphone Package Included: 1 x 2500mAh Battery for DOOGEE DG580 More Details: