Car Battery Charger


Posted on Jul 13, 2012

This charger will quickly and easily charge most any lead acid battery. The charger delivers full current until the current drawn by the battery falls to 150 mA. At this time, a lower voltage is applied to finish off and keep from over charging. When the battery is fully charged, the circuit switches off and lights a LED, telling you that the cycle has finished.


Car Battery Charger
Click here to download the full size of the above Circuit.

1. The circuit was meant to be powered by a power supply, which is why there is no transformer, rectifier, or filter capacitors on the schematic. There is no reason why you cannot add these. 2. A heatsink will be needed for U1. 3. To use the circuit




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