| Now that everything is becoming battery powered, the need for tools to test and repair batteries is rising. I already reviewed the Fnirsi SW...
More about Car Battery Tester (3)
| Without sophisticated electronics, simple method to measure battery capacity : 1 relay, 1 zener, 2 diodes, a resistive load, 1 timed switch,...
| The principle behind this circuit is very simple. The battery is loaded with a current of about 100 A for a period of 100 µs, which is repea...