... Universal 7.4V 8.4V adapter for charging li-ion battery pack. Charging current: 1A,2A,3A optional. Output voltage:8.4V ... +-1% max. Product Name: Universal 8.4V adapter for charging 7.4V li-ion battery ... ,1.5A, 2A,3A,4A,5A optional)- Full charing voltage: 8.4V+-1% - Charging state indicator: Red - on charging, ... UL,CE,RoHS,EMC We also provide 4.2V, 8.4V, 12.6V,16.8V, 21V, 25.2V ...