NiCd Chargers vs Ordinary Power Supplies

Hi,

requires constant current supply, with voltage monitoring until reaches fully charged threshold, then goto trickle charge. Simple chargers just use a series resistor, which is not good for long term battery life. Do a search on 'NiCD chargeing" and you should get all the info you need.

Clive

Ordinary power supplies = nominally constant voltage.

NiCd chargers = nominally constant current (with complex overcharge detection circuits).