- Ultra Fast Recharging Time Recharge 2 AA or 2 AAA batteries right around 1 hour. Recharge 4 AA / AAA batteries in about two hours. -Improvements on an already intelligent charger. When the light turns green, the batteries will be nearly 98% charged so you can get the most of the high capacity batteries. The MH-C204W has a 5th generation PowerEx microprocessor that features an unique four stage charging process: -Ramp-up -Rapid Charging -Top-off charging -Maintenance Charging The Ramp-up jolts the batteries if needed to revive old batteries. This jolting feature is a series of carefully timed high current pulses that can activate both new and inactive batteries. The MH-C204W is designed with an intermediate, medium current, top-off charge so that the battery will retain most of its charge. The Maintenance Charging feature is an extremely low current pulse charging that gives the batteries a brief pulse charge periodically to ensure the batteries are charged but not overcharged. -Battery Conditioning Feature: Bring dead batteries back to life
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