Charges 2 or 4 AA and/or AAA NiMH batteries at a time. Two green LEDs indicate when batteries are charging. Reverse polarity protection prevents damage from incorrectly installed batteries. Charges NiMH batteries in 8 to 16 hours, depending on type and number. Batteries must be charged in pairs. No shutoff mechanism, typical weight 5.9 oz. Fold-out plug. 120 volt, 60 Hz. 57 mm width x 70 mm length x 132 mm height.
Charges 2 or 4 AA or AAA at a time, checks if the batteries are still rechargeable. Fuel gauge and count-down clock tells when batteries are done charging. Maximizes cycle life of the NiMH cells with built in over charge protection. Shutoff mechanism: Delta V detection, 5 hour timer. Sound indicators, single beep/start, double/done. 3 stage status indicators: red, charging 0-49 percent, amber, charging (50-99 percent), green, fully charged. Bad battery detection alert, If a bad battery is detected a red x will illuminate; with repetitive audible beep. Folding plug, reverse polarity protection. Primary battery detection. Typical weight: 113.0 grams (3.9 oz.).