[Ozruss90]

Originally Posted by Paul Workman

Did the shop FIRST fully charge that AC Delco battery before load testing it? A couple or three years on a battery is unusually short.

In my experiences (I used to maintain dozens of lead-acid batteries, among other things, at remote microwave radio repeater sites (think mountain tops) and now have 7 lead-acid batteries of my own in various vehicles and equipment.) The average age is 10 years...and counting! So, unless you have an excessive parasitic draw that exceeds ~25 to a max of 50mA, your battery expiring so soon is unusual to say the least, OR it isn't charging as well as it should. (Corroded battery terminal connections??)

A cold battery should read 13.8 (hot) to 14.7 volts (cold) across the terminals with the motor running (w/o the lights or AC running) IF the alternator is working properly.

Not implying YOU or anyone who is not "anal retentive" (like me) go out and buy a BATTERY LOAD TESTER, but they are cheap enough and take all the guess work out of testing your lead-acid batteries (including AGM batteries). Since I have so many 'round the ranch, I decided I needed to have my own, and AutoZone was more than happy to feed my obsession with tools! Anyway, doing a home load test is a subject for another day.

Been on the charger over night. will go in this morning and observe whilst they do the load test