DescriptionWelcome to our store: Tips: If you need Large quantity, please contact us, we can wholesales. Specification: Product information: 1 input voltage: 110V-220V 2 Input Specifications: US Plug 3 output voltage: 21V 4 output current: 2000mA 5 Output Specifications: 1meters cable 5.5*2.5mm connector Charging way: The professional way of charging rechargeable batteries: the first stage constant current charging, LED indicator is red, charging voltage reach to the rated voltage; into the second stage constant voltage charging, when the charging current is slowly reduced, current reaches the turn lights current, LED lights turned green, the battery has been full to the 90%-95% battery the charging current is very small, until full. Package Contents: 1 PCS x Battery Charger AC/DC Adapter Payment
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