The alternator gave up the ghost in my snow car, a 1990 eagle talon tsi awd. I was just too busy with other things, so it sat with a dead battery for a couple of weeks. I finally got an alternator installed only to find that my battery is now junk. She'll start with a jump and run just fine. If i shut her off, she won't start again. Tested the alternator, and it is definitely working.
I bought this charger a few years ago. It's the best battery charger i've ever had, and i absolutely love it! It's started a bus with a dead battery many times, also powers all my 12 volt appliances when i'm parked at a party.....i digress.
This fancy charger has "desulfate" mode. the original directions are long gone, but were written poorly in chinese to english conversion anyhow.
I started the desulfate yesterday evening, and it'll run until tomorrow morning...so for at least 36 hours.
Anyone think this will work, or have any experience with battery desulfation. I wonder if this concept is just snake oil? I figure the battery in the talon is junk anyhow, so this can't hurt.
If it seems promising, i'd like to find another "junk" battery or two and do a little scientific test. Maybe charge the battery and see how long it will run a particular device like a 100 watt light bulb. Then desulfate, charge, and see if things improve.