This is a battery charger that will charge 2.4volts up to 14.4volts(2-12 cells) worth of Ni-Cad / NiMH batteries so it will do anything from 700mA cells up to 5Ah cells. QUESTION Will it damage the battery? No its a -Delta V pulse charger so it will automatically cut off when battery pack is charged It charges at 500mA then drops to a trickle charge so it will not get your battery hot through excessive input current , It is "world wide voltage " so there is no trouble if you need it in any other country and it comes with large tamiya and large to I-Cybie connector