BT-C900 NiMH NiCd Li-ion 9V Intelligent Digital Battery Charger LCD Display US BT-C900 - Only Intelligent Charger for 9V Batteries BT-C900 is the only type intelligent charger for 9V rechargeable batteries, such as NiMH, NiCd, Li-ion from 7.2V to 9.6V with LCD display. BT-C900 charger handles 4 batteries at the same time with each battery independent from working mode or display content at the same time. Different working modes are under user choice: charge, discharge, test, refresh, and quick test (for internal resistant measurement). Charging current is programable from 50mA to 200mA with 25mA per increment step. * Discharging current is automatically set to the same as selected charging current.