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02-08-2016, 04:20 PM
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#1
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Senior Member
Join Date: Feb 2014
Location: Ontario
Posts: 1,174
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Battery voltage
My group 31 Deep cycle battery manufactured by Crown Battery has been sitting in my basement since Nov. when I pulled it out for storage, Read the voltage on it yesterday with volt meter and it was 12v. Put the charger on it at 7amps for 24 hours, after that it read 13v. Should it be higher or should keep charging ( battery case was warm to the touch and fluid level is up) I was thinking it should be around 13.8 - 14.2 . Any thoughts?
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2014 Forester 3051s
2016 Nissan Pathfinder SL
2012 Sonic toad
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02-08-2016, 04:24 PM
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#2
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Site Team
Join Date: Mar 2008
Location: Southwest Alabama
Posts: 9,850
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It should charge at ~13.8 to 14.4 volts but at idle the battery should read about 12.5 volts.
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Salem 29RKSS Pushing a GMC Sierra 2500HD!
Gotta go campin!
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02-08-2016, 04:28 PM
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#3
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Senior Member
Join Date: Feb 2014
Location: Ontario
Posts: 1,174
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Quote:
Originally Posted by Bama Rambler
It should charge at ~13.8 to 14.4 volts but at idle the battery should read about 12.5 volts.
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Thanks for your reply but the battery is sitting in my basement ( bricks and mortar house) not in the MH. So there isn't any idling
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2014 Forester 3051s
2016 Nissan Pathfinder SL
2012 Sonic toad
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02-08-2016, 04:31 PM
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#4
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Senior Member
Join Date: Feb 2014
Posts: 1,428
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Quote:
Originally Posted by wana65stang
Thanks for your reply but the battery is sitting in my basement ( bricks and mortar house) not in the MH. So there isn't any idling
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He means resting. Fresh off a charge they will hover at 13V plus for several hours, but should stabilize in the ~12.65 range if all is well with it.
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Now-2014 Sierra 346RETS 5er BUB
Then-2002 Keystone Springdale 286RLDS TT
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02-08-2016, 04:32 PM
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#5
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Site Team
Join Date: Oct 2014
Posts: 15,266
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Measuring immediately after removing the charger, you are measuring the surface charge and not the actual state of charge. You should let the battery sit for 6-10 hours and remeasure. Then full charged is 12.6V.
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02-08-2016, 04:39 PM
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#6
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Senior Member
Join Date: Feb 2014
Location: Ontario
Posts: 1,174
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Sknight and Flybob Thanks guys , I will reread voltage tomorrow after sitting off charger over night and see what it reads.
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2014 Forester 3051s
2016 Nissan Pathfinder SL
2012 Sonic toad
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02-08-2016, 04:41 PM
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#7
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Senior Member
Join Date: Feb 2014
Location: Ontario
Posts: 1,174
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Quote:
Originally Posted by SKnight
He means resting. Fresh off a charge they will hover at 13V plus for several hours, but should stabilize in the ~12.65 range if all is well with it.
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Got ya, idle = sitting
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2014 Forester 3051s
2016 Nissan Pathfinder SL
2012 Sonic toad
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02-09-2016, 11:16 PM
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#8
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Senior Member
Join Date: Mar 2014
Posts: 939
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As I was reminded recently, for $8 you can buy a hydrometer and eliminate all doubt as to it's condition.
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Rockwood 2104S, 2014 Ram 2500 Diesel.
USMC 68 -70
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02-09-2016, 11:41 PM
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#9
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Senior Member
Join Date: Mar 2014
Posts: 1,748
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Quote:
Originally Posted by wana65stang
My group 31 Deep cycle battery manufactured by Crown Battery has been sitting in my basement since Nov. when I pulled it out for storage, Read the voltage on it yesterday with volt meter and it was 12v. Put the charger on it at 7amps for 24 hours, after that it read 13v. Should it be higher or should keep charging ( battery case was warm to the touch and fluid level is up) I was thinking it should be around 13.8 - 14.2 . Any thoughts?
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Good read, should help you out. The 12volt Side of Life (Part 1)
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02-10-2016, 04:50 PM
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#10
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Senior Member
Join Date: Feb 2014
Location: Ontario
Posts: 1,174
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Still Kicking, yes that is good info . Thanks for the link. Battery has been off the charger for about 48 hrs and still reads 13 volts , guess all is ok .
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2014 Forester 3051s
2016 Nissan Pathfinder SL
2012 Sonic toad
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02-10-2016, 06:22 PM
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#11
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Senior Member
Join Date: Feb 2014
Posts: 1,428
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That's not terribly unusual. You should be just fine!
I need to do the same, get my batteries out of this crazy weather we're having.
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Now-2014 Sierra 346RETS 5er BUB
Then-2002 Keystone Springdale 286RLDS TT
Nights camped in 2014-28, 2015-127, 2016-10
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