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Are these 6 or 12 volt batteries?
Posted by Archived on August 23, 2021 at 4:01 pmThese are the motor batteries, are they 12 volt or 6 volt?
If I’m trying to bring them up to full charge after they have been sitting for a while, what would be the best way to connect the battery charger?
Thanks
Dick replied 5 years ago 11 Members · 14 Replies -
14 Replies
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That is four 12v batteries.
Since you had to ask something so basic, you should let someone more knowledgeable handle charging the batteries.But since you asked:Pull them out, test them, and charge them one at a time.In the bus: If you have a 24v charger put the neg charge lug on the bottom right neg terminal, and the pos charge lug on the top right pos terminal.In the bus: If you have two 12v chargers, put one charger on the bottom right battery, and put the other on the top right battery. -
Thanks Don
We all have to start our learning process somewhere.
I roll with, the only dumb questions are, the ones we didn’t ask.
I’ll get a second charger and hook it up exactly as you describe.
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Got a 2nd charger.
I hooked them up positive to positive, negative to negative on the top and bottom batteries on the right side. Getting quite a difference in charged readings. 85% on top charger 32% on bottom charger.
Is that normal?
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The batteries should have cables removed, each fully charged then load tested. If age is unknown and no written coach records, replace them with Napa Group 31’s and start fresh.
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When you order the Group 31 batteries ask NAPA counter man to order you the batteries with all the same manufacture date code. If get push back speak to store manager.
AL
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Thanks Tom and Al.
Is there a way to load test the batteries individually while they’re disconnected?
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Yes, individually is the only proper way to load test them. I own my own load tester. If you don’t? you can take them to the local auto parts store or garage and have them individually tested.
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Do you know the age of the chassis batteries?
At this point I’d unhook them. But first remove all your jewelry and watch, label all the connections, remove them, charge each overnight, take them to NAPA, and have them load tested. Then you’ll know what you have. If one or more have problems, replace all four. Don’t try to save a few nickels by replacing just the bad ones. The others are probably old and will pull down the new ones. Go to the American Independent Truckers Association and sign up for its NAPA discount program. You’ll save money on your batteries.
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Don-
I don’t have one, so I will take them to the auto store and have them tested.
They did charge up to 100%. They had worked well every time I started the bus, but life got hectic and didn’t start it for 4-5 weeks, so just wanted to top them off.
Thanks
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Deleted User
Deleted UserAugust 25, 2021 at 1:09 amDick-
I didn’t see any date codes on the visible parts of the batteries. But I will look closer when I do pull them out. They have always done the job, but checking them and having them load tested to know for sure sounds like the way to go, and if necessary, will do all four.
Thanks
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Sounds like you didn’t install them. How long have you owned the Coach?
Who did the conversion?
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Dick-
No, I didn’t install them. I’ve owned the coach for a couple of months.
Bill Kingston of Kingston Coach did the conversion.
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Al-
I just copied the link, didn’t check it, thought it went right to the article on the bus the Bill Kingston had converted.
I’ll delete the link
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