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Old 06-29-2015, 05:10 PM   #1
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Battery heat while charging

How hot should my group 24 battery get while connected to 30 amp shore power charging. Also I can hear a distinct click sound under front of my 2002 Wildwood 30BHSS LTD while battery is charging. Is all of this normal?
Started with 2.0 Volts will the on board charger bring it back
Thanks for any advice.
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Old 06-30-2015, 10:18 AM   #2
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OUCH - If your battery was reading 2 volt, you may be looking for a new battery. Check the water level in the battery, make sure its well ventilated as it will be producing a lot of hydrogen gas.

It may recover, but usually when you run it down below about 9 volts, its a crap shoot.

How are you charging it?

Do you plug into shore power?

What model converter do you have? (i.e. is it a three stage or single stage)
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Old 06-30-2015, 10:26 AM   #3
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IMO, no way. You are risking a fire.

2 volts on a 12 volt battery means several cells are shorted internally.

Turn it in for a core and get a new one.
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Old 06-30-2015, 10:26 AM   #4
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I suggest if you want to try to recover that battery ( down to 2V) you take it out of the RV, Check/fill the cells with distilled water and charge it with an external charger away from any structure. If it was low over the winter and you live in a cold climate, it could have easily frozen and cracked and is most likely destroyed. Either way, if you try to recover it it should be charged outside ( open air ) and away from anything that can burn. If it were me, I would trade it in on a new one. Even if you get it to take a charge ( unlikely) it will not hold the charge.
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Old 06-30-2015, 12:15 PM   #5
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If the battery lets go, acid will splash everywhere.
Best not to risk it.
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Old 06-30-2015, 03:13 PM   #6
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X2 on Herks advice
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Old 06-30-2015, 04:02 PM   #7
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If you are going to replace the battery (a good idea), choose a good one, like Trojan deep cycle. And purchase the largest one that will fit into the available space - a group 27 or group 31. And best would be two 6v deep cycle batteries wired in series to give 12v and double the Ah. Space providing, of course.
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Old 06-30-2015, 05:56 PM   #8
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Quote:
Originally Posted by DickiedooFlagman View Post
If you are going to replace the battery (a good idea), choose a good one, like Trojan deep cycle. And purchase the largest one that will fit into the available space - a group 27 or group 31. And best would be two 6v deep cycle batteries wired in series to give 12v and double the Ah. Space providing, of course.
Two six volt batteries in series will not double the AH; it doubles the voltage.
Two 12 volt batteries in parallel will double the AH, but not the voltage.

Example:

Two 12 volt batteries with 100 AH each, when piggybacked (Parallel Operation) will yield a 12 volt "bank" of 200 AH

Two 6 volt batteries of 200 AH each when connected in series will yield a 12 volt bank of 200 AH.
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Old 06-30-2015, 06:05 PM   #9
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Herk
Think you meant to say
Two 12 volt batteries in parallel will double the Ah
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Old 06-30-2015, 06:08 PM   #10
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Quote:
Originally Posted by Flybob View Post
Herk
Think you meant to say
Two 12 volt batteries in parallel will double the Ah
Yep! What the Captain meant to say!
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