PV100 Power Bank Capacity 4200mAh Battery Li-Polymer rechargeable battery Dimensions (L x W x H) 67 x 118 x 8mm (2.6 x 4.6 x 0.3in) Weight 105g (3.5oz) Warranty 1 Year Colors Black Pink Input DC 5V 1.0A (Micro USB) Output DC 5V 2.1A (Type-A USB) Notes 1. Adata Power Banks utilize rechargeable lithium (Li-polymer) batteries, and the value of rated capacities are affected by various factors including but not limited to ambient temperature, testing conditions and methods. The rated capacities of Adata Power Banks are all tested and approved by third party test labs under specified conditions. (The available capacity of rechargeable batteries decreases gradually with time according to battery characteristics.) 2. Output current will vary depending on the input charge properties of the device being charged.