Features:Dual channel battery charger for Canon LP-E17 camera battery.Support smart fast charging. When fully charged, it will stop charging. With multiple protection functions: Overcharge protection, over-voltage protection and short-circuit protection.Adopt the active shunted technology. Independent control: Two charging slots are non-interfering. Can charge one battery one time or two batteries simultaneously at a time.LCD display shows charging status. Simply operate, intuitional and clear.With USB charging cable, can connect to laptop, AC adapter, car charger and power bank to charge it. Convenient and efficient.Specifications:Brand: Compatible Battery: For Canon LP-E17 camera battery(1pc/ 2pcs)Natural: For 7.2-7.4V Li-ion batteryInput: 5V, 2AOutput: 8.4V---1A*1, 8.4V---0.6*2-----------------------------------------Fast: For 7.2-7.4V Li-ion batteryInput: 9V, 1.67-2AOutput: 8.4V---1.5A*1, 8.4V---1A*2Item Size: 11.7* 9.8* 2cm/ 4.6* 3.9* 0.8inchItem Weight: 66g/ 2.3ozPackage Size: 14* 10.2* 2.3cm/ 5.5* 4* 0.9inchPackage Weight: 103g/ 3.6ozPackage List:1* Dual-channel Charger for Canon LP-E171* USB Charging Cable1* User Manual(English)Note:Use the provided connector cable and connect the USB plug to any 5V power source.Fast Mode: Work with QC2.0 or QC3.0 adapter.