BT-C700 V2.1 Battery Charger Analyzer Tester for AA AAA NiMH NiCd rechargeable batteries with Car Adapter 12V Battery charger for AA AAA NiMH NiCd rechargeable batteries. Very easy to setup and simple to use. Back lighted LCD display Digitally displays capacity, voltage, time elapsed and current for each battery channel. Charge, Discharge, Refresh , Test. Even test internal resistance. This charger does it all with ease. Highest battery capacity limit of 20,000 mAh. Charge, Discharge, Refresh, Test any AA AAA NiMH or NiCd battery, C & D batteries with optional adapters. Small, portable, easy to use, operates from any 12V source at home or on the road. Car adapter included.