Battery voltage
Thread Starter
1st Gear
Joined: Nov 2024
Posts: 1
Likes: 0
Battery voltage
Hi
The car wouldn't start anymore with the 3.5 year old battery on the weekend vehicle (I noticed engine turn over was getting weaker over time). Naturally I though time to replace. Checking voltage with a multimeter I was surprised to read 12.3V. Charged at home to 12.85 & left disconnected. A day after it's 12.55 and a day after 12.52.
I'm not knowledgeable re car batteries but does this make sense?
Thanks
The car wouldn't start anymore with the 3.5 year old battery on the weekend vehicle (I noticed engine turn over was getting weaker over time). Naturally I though time to replace. Checking voltage with a multimeter I was surprised to read 12.3V. Charged at home to 12.85 & left disconnected. A day after it's 12.55 and a day after 12.52.
I'm not knowledgeable re car batteries but does this make sense?
Thanks
Le Mans Master
Joined: Oct 2017
Posts: 5,426
Likes: 2,307
From: Billings Montana. Out in the wild west
If I recall correctly, the minimum voltage should be 12.7V if it’s below that you could have issues. The first thing I suggest doing is taking your battery in and having a load test done on it which a lot of auto parts stores will do for free. If it fails and you do need to replace your battery, put a trickle charger on it when not driving it.
