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The XTAR VC4 USB battery charger is a three-stage dual bay battery charger suitable for a wide range of Ni-MH and Li-ion rechargeable E-Cigarette batteries.
The charger also features a USB output with Power-Path Management System that enables you to charge both batteries and an external device ( max output 1000mA) at the same time while power is connected.
This device requires a USB power source. For full speed charging, a 2 amp plug is also required (1 amp plug will work but at reduced speed).
0.5A Constant Current: 500mA
1.0A Constant Current: 1000mA
Cut-off Voltage: 4.2V±0.05V
0.5A Pulse Charging Current: 500mA
1.0A Pulse Charging Current: 1000mA
Cut-off voltage: 1.40±0.1V
USB output no-load Voltage: 5.0±0.25V
Max output current: 1000mA
Battery over-discharge protection voltage: 3.0±0.2V