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Old 05-09-2019, 11:36 AM   #1
85/Silverado
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charge battery

I went out of town for a few weeks and left my parking lights on, The battery is less that 6 months old, do you think it will take a charge and be ok?
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Old 05-09-2019, 12:59 PM   #2
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Re: charge battery

Won't know until you try, but odds are it will. If the battery accepts the charge, take your truck out and give it a good, long drive.
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Old 05-09-2019, 03:06 PM   #3
WorkinLonghorn
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Re: charge battery

I just faced this situation for a neighbor. It was really dead after a few weeks so I put a trickle-charger on it and at first it showed "0" Amps of charge happening. But after 8 hours or so it was showing 4 AMPs charging rate so I took the charger off and she was able to drive to work (got a nice coffee cake as a reward too!).

Anyway that is how I would do it. I wouldn't try a fast charger and I would let the trickle charger do most of the work to save my alternator the unnecessary wear and tear. -BA
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Old 05-09-2019, 03:50 PM   #4
85/Silverado
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Re: charge battery

thanks guys, i'll let it run all night.
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Old 05-09-2019, 06:04 PM   #5
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Re: charge battery

dead battery's like this i toss on my charger for a 2-3 hr strech and then off for a few hr's and do this 5-6 times for the day in the shop . this tends to kick them in the butt and wake up . the next day i will leave it on slow all day .
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Old 05-09-2019, 06:35 PM   #6
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Re: charge battery

Might want to check the voltage after starting the truck and turning it off (or letting it sit for a while) to verify full voltage/charge. Anything less than 12.6V is no bueno.

https://www.google.com/search?q=auto...=firefox-b-1-e

Last edited by franken; 05-09-2019 at 06:43 PM.
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Old 05-09-2019, 09:19 PM   #7
85/Silverado
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Re: charge battery

The local store I bought it from was blown away in the hurricane last Oct., a week after I got the new battery. So I'm crossing my fingers and we will see In the morning.
The only gauge in my truck that doesn't work is the voltage...lol
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Old 05-09-2019, 09:33 PM   #8
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Re: charge battery

It should come back to life as long as the discharged battery didn’t freeze.
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Old 05-11-2019, 09:29 PM   #9
85/Silverado
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Re: charge battery

Didn't work so I guess I have to return it. I had a old battery but couldn't get it to start, the timing keeps moving on me, I need a better dist. clamp.
But it's not easy finding a NOS one, or even a old one ...everyone sell's these plated crap one's.
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Old 05-11-2019, 09:47 PM   #10
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Re: charge battery

I've read that for a really discharged battery, some supposedly smart chargers won't charge. Some say connecting a battery w/ some charge in parallel to the dead one and then connecting the charger can help.
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Old 05-11-2019, 10:04 PM   #11
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Re: charge battery

dist clamp that wont hold try this .

hacksaw and cut some croves 90* apart from each other on the 2 tab points like it was knurled on a tool handle . this can help it bight in better .

have you posted a wanted parts ad " i am sure someone here has a oem used to sell cheep .
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77-k30lb BIG truck build .
87-k30lb budget beater build .
85-k30lb the plow machine build .
85-c10sb summer fun toy .
-----------------------------
HOLLEY SNIPER efi = worst case of p.i.t.a i ever had .

EDELBROCK pro flo 4 = best deal going so far . love my setup works great.
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Old 05-12-2019, 08:31 AM   #12
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Re: charge battery

Quick and easy Mod I found on eBay.
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