Specifications: Input: DC 5V / 2,1A Output: DC 4.2V / 730mA x1 / 730mA x19 (CH1 / CH2) Dimensions: 11.5 x 7 x 1.9cm Connectors: Micro USB (input), 2 charging slots ( output) Suitable for the following camera types: Sony Cyber-shot DSC H55, DSC H70, DSC H90, DSC HX10V, DSC HX20V, DSC HX5V, DSC HX7V, DSC HX9V, DSC WX1, DSC WX10 It is possible to charge 2 batteries at the same time. The charger can be powered via any standard USB port with the supplied Micro USB cable. An integrated automatic shutdown system prevents damage to the batteries due to overcharging.