veimi
Well-known member
I have a relatively new 12V battery in my car which has not been used recently.
It wouldn't start. Measuring the battery voltage it was low, about 11.5V so I put a solar charger on it. The voltage went to 12.5V but still wouldn't start.
After charging with an external charger everything returned to normal, but after taking a short trip and turning the car off it again wouldn't start. Recharging the battery for a short period again allowed the car to start.
My first thought is that there could be a bad cell in the 12V battery but the battery is new.
Is there any chance that it may not be the battery but the contactors for some reason or other or the sensing circuitry that monitors the 12V battery are at fault?
It wouldn't start. Measuring the battery voltage it was low, about 11.5V so I put a solar charger on it. The voltage went to 12.5V but still wouldn't start.
After charging with an external charger everything returned to normal, but after taking a short trip and turning the car off it again wouldn't start. Recharging the battery for a short period again allowed the car to start.
My first thought is that there could be a bad cell in the 12V battery but the battery is new.
Is there any chance that it may not be the battery but the contactors for some reason or other or the sensing circuitry that monitors the 12V battery are at fault?