Tech Specs: Universal Input Voltage, AC Switching Power Supply: 100V-240V and DC Cord (Vehicle Cigarette Lighter): 12V-24V; Output Voltage: 4.2V DC, Charging Current: 500+/-50mA; Features: Charging Time: 60-120min (depends on battery capacity); Automatic Protection from Short Circuit, Overcharge and Electronic Shock. Compatible with: HP R817 / R817V PhotoSmart . Package includes: Battery charger with AC adapter and Car Cigarette Lighter extension cable.