An Arduino Pro Mini provides the brains for the charger, ... addresses these admirably by including a ground fault detection circuit. ... I would suggest you charge a 12v or 24v battery ...

Build Your Own Arduino Voltmeter Circuit and Voltage Divider Which Can Measure Voltages From 0V to 30V, Including 12V. Visit To learn More. Aspencore network. News & Analytics ... Arduino voltmeter ...