DSTE 2x NP-120 Replacement Li-ion Battery for Fujifilm Finepix 603 M603 F10 F11 Zoom Pentax Optio 450 550 555 750 750Z MX MX4 Camera as D-LI7 DB-43 Battery Type : Li-ion Battery Capacity : 8.5Wh/2300mAh Output Voltage : DC 4.2V (max)/ DC 3.6V (mean) Info Function for Life Indication High Capacity for Stamina