I tested the cells of my battery. Some were about 1.23, some about 1.27, but 1, the fifth from the outside was about 1.15. The battery is 10 years old. They’re used in series: how can one wear out so much more? The longest guarantee I could find on a battery was 3 years. I remember buying a Duralas…

[image] asemaster: I remember doing that back when batteries had service caps. Never really understood why though. Back when batteries were vented through the caps and chargers were not very “intelligent” you’d lose some water to get a full recharge. It “boils off” a bit of the water. Then yo…

[image] Rainflurry: It’s not unusual for a battery to read 13V+ (surface charge) after charging and then drop to 12.7V (resting charge) within a few hours. How long this takes can indicate if the battery is brand new or not.

Why do the cells of a battery wear out at a different rate?

Maintenance/Repairs

TheWonderful90s December 7, 2023, 4:38pm 41

How long this takes can indicate if the battery is brand new or not.

Topic		Replies	Views
Accidentally drained OEM car battery Maintenance/Repairs toyota , rav4	50	5951	June 14, 2018
Old battery and rate of parasitic drain on car all of a sudden Maintenance/Repairs	35	3482	October 21, 2015
Adding sulfuric acid to a car battery? Maintenance/Repairs	45	58606	June 12, 2020
Testing a battery: is the hygrometer obsolete? Maintenance/Repairs	29	11429	August 13, 2016
Charging car battery, procedure for Maintenance/Repairs	52	2000	July 17, 2024

Why do the cells of a battery wear out at a different rate?

Related topics