Switcher IC hikes battery chargers efficiencyThis is a fast-charges 500-mAhr circuit for AA Ni-Cd cells. The number of cells can select by two switch, the circuit handles two to eight of AA Ni-Cd cells,The input voltage must be at least 15V. Charging starts when you plug in the battery.There is LED to indicate when the battery is fully , and the charger switches to trickle-charge mode.

Switcher IC hikes battery charger’s efficiency
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Switcher IC hikes battery chargers efficiency