GPK Systems Battery and Charger for Hp Photosmart R742 Digital Camera Battery: Capacity: 1200mAh / Voltage: 3.7V / Type: Li-Ion AC Charger: Input: AC 110V-240V 50/60Hz / Output: DC 4.2V 600mA Car Charger Adapter : Input: DC 12V-24V Service & Support 1 year warranty Products were tested by manufacturer to match and/or exceed specifications of OEM products