Every car has a 12V battery — and a failed one leaves you stranded, even in a fully charged EV. PAD's professional battery load test measures voltage, cold cranking amps (CCA), and state of charge in minutes, at your door.
A proper battery test is not just a voltmeter reading. PAD uses professional battery testing equipment for a full load test.
Resting and loaded voltage measured. A healthy 12V battery reads 12.6V+ at rest — lower values indicate discharge or cell failure.
The battery's ability to deliver power under load. CCA below the rated spec means the battery may fail in cold weather or under high demand — even if it looks fine at rest.
Current charge level as a percentage of capacity. Distinguishes a genuinely weak battery from one that simply needs charging — so you don't replace a good battery unnecessarily.
In a standard petrol or diesel car, the alternator charges the 12V battery every time the engine runs. In a plug-in hybrid, the car frequently operates in electric-only mode — which means the engine doesn't run, the alternator doesn't spin, and the 12V battery goes long periods without being charged.
The result: PHEV owners experience 12V battery failures far more frequently than ICE vehicle owners, often within 2–3 years. And when the 12V fails, the entire vehicle can become inoperable — even with a full high-voltage battery.