Helppppppp Papajohn or anyone please

Munchie

LIFE MEMBER
Jul 28, 2007
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Champagnac-La-Riviere
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Since 2004
Ok not major problem but......

My batteries charge on solar or hook up to 14.3 amp.
When off hook up they slowly run down at what i would think at a normal rate.
Till they get to 12.8 then they suddenly crash to 11.1!!!!
I presume i need new batteries?
 
Feb 24, 2013
10,685
32,229
Bolsover, Derbyshire
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24,833
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Hymer S800
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not long enough
sounds like you have more than one battery, my bet is one has failed, you probably only need to identify and replace that one (y)

I know this because I bought 2 for mine, then found I only needed one :doh:

I was amazed that one failed battery can so badly affect the total voltage
 
Feb 24, 2013
10,685
32,229
Bolsover, Derbyshire
Funster No
24,833
MH
Hymer S800
Exp
not long enough
How do you find out if it's just one that's failing and which one?
turn off the charger, disconnect batteries from each other then check the voltage with a meter

or you could use your controller for an indication of voltage if you don't have a meter, just connect one at a time

(y)
 

scotjimland

Free Member
Jul 25, 2007
32,020
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Funster No
15
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As they are both the same age I will replace them both so as not to end up in the same situation further down the road.
But thank you!
That is the best plan..

ideally, batteries or cells in banks should be

* same make
* same capacity
* same age

The pedantic will even try to buy with consecutive serial numbers so they are as near identical as possible..
 
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