Maha MH-C9000 'Wizard One' Intelligent Battery Charger It's like having four charger-analyzers for AA and AAA NiMH batteries ! MH-C9000 digitally displays capacity, voltage, time and current, and up to 29 selectable charging and discharging rates, charging current from 0.2A to 2.0A, and discharging current from 0.1A to 1.0A in 0.1A increments. Now you can easily re-generate those old "dead" cells, and batteries that have been stored away. Suitable for batteries stored for more than two weeks but less than 3 months or those showing poor performance.