DSTE&reg; 2x NP-400 Rechargeable Li-ion Battery Pack for Konica Minolta A-5 A-7 Digital Dimage A1 A2 Dynax 5D 7D Maxxum 5D 7D Camera as Pentax D-LI50 Battery Type : Li-ion Battery Capacity : 17.0Wh/2300mAh Output Voltage : DC 8.4V (max); DC 7.2V (mean) Info Function for Life Indication High Capacity for Stamina