Comments on: Why is My 12 Volt Battery Reading as 13 Volts?

By: James Cunningham

James Cunningham — Mon, 02 Mar 2020 16:09:29 -0800

I have a 6v battery in my quad and i charged it up and its reading 10.7v, when i turn on the key it goes down to 2.3v is the battery stuffed or do i have a short somewhere?

By: Dd

Dd — Sun, 23 Nov 2014 12:33:46 -0800

Excellent article. Thank you. The motorcraft XBT66-650 has a date code of Dec. 2007. This is by far the longest lasting battery we’ve ever had. The day following a cold snap it wouldn’t start. I charged it & its lasted another 2 mths. Then again last nite, it wouldn’t start the car. It read 11.86. I charged it, it now reads 12.54. And starts fine. The prorated warranty is for 100 mths. I’m surprised it lasted 84 mths. I will be getting another one. The cenntenials lasted 4 1/2 years, like clockwork. The Bosch batteries lasted 2 1/2 years like clockwork. For $20 more I will stick with the motorcraft

By: tim

tim — Mon, 21 Jan 2013 11:22:46 -0800

I have 6 8volt batteries that are dead. My charger won\‘t charge them because they are below 20 %. and they are 5 years old. Can they be saved?

By: Joan

Joan — Mon, 23 Apr 2012 09:02:02 -0700

Very helpful information and well-written for a non-technical college grad. Thank you