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NiCad Charging
Hi.
I have a question. I have a regulated 12v supply, 12v 700mAh NiCad pack. How do I trickle charge the Nicad pack. Have tried using a small resistor (400-600r) as a constant current source but the current drops off to .8ma as the pack voltage reaches 11.5 ish volts. Obviously the pack just discharges in minutes. Any ideas, or do I need to raise the supply voltage. Thanks. |
#2
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NiCad Charging
Try using a charge circuit that contains a incandescent light globe in
series with the supply current. The co-efficient properties of the Tungsten filament should provide a certain amount of current limiting as the battery is being charged. A 12 volt 5 watt car globe should be sufficient. HTH. "John M Walker" wrote in message ... Hi. I have a question. I have a regulated 12v supply, 12v 700mAh NiCad pack. How do I trickle charge the Nicad pack. Have tried using a small resistor (400-600r) as a constant current source but the current drops off to .8ma as the pack voltage reaches 11.5 ish volts. Obviously the pack just discharges in minutes. Any ideas, or do I need to raise the supply voltage. Thanks. |
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