3 ms·
No need for special equipment. You can diagnose a weak battery just by turning on your headlights.
by axiolite 5y ago
No need for special equipment. You can diagnose a weak battery just by turning on your headlights.
- genocidicbunny 5y agoI'm not sure this is true anymore with recent cars. Mine has LED headlights and turning them on barely drooped the battery voltage. If you have someone who can help, measuring the voltage while you try to start the car can help more directly diagnose this.