FPV Power’s Pro Charger is able to charge up to 6A per hour (make sure that the battery can handle it) and will monitor the battery throughout the charging process with trickle charge towards the end and automatic cut off once completed. The onscreen display will tell you exactly how many milliamps you have put back into the battery as well as voltage, time and current rate of charge.
DC Input: 11-18V
Charge Current: 0.1-6.0A
Lithium Battery Type: LiPo, LiIon, LiFe
Lithium Battery Cell Count: 1-6
NiCd/NiMh Battery Cell Count: 1-16
Pb Voltage: 1P-10P