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House Battery Issue


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#31 mcp

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Posted 17 August 2019 - 01:52 PM

Fish.   If you have a digital Multimeter?   Disconnect the batteries from all wiring and let them rest for a while to settle their voltages.  Then measure the resistance across the - & + of each battery.   If one has a largely higher internal resistance to the other [being the same brand and age] I would say there would be an internal fault and the higher resistance is causing the heating of a few cells. 

Please ignore if this has already been suggested.


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#32 wheels

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Posted 18 August 2019 - 06:32 AM

Nope not the linking cable. In series, any voltage issue would be seen across both batteries.

Also, 2.54 and 2.55V could be a red hearing. You need a really good multi meter to get you an honest result. How do you know if the 2.54 is not actually 2.549. And I would expect you to be seeing differences in readings of 0.01 of a volt anyway. Many Multimeters would have internal errors of 0.01 of a volt. You would need to be using a top end device of a couple hundred bucks to get better accuracy.
You need to get a sparky to place a sophisticated battery analyzer on the thing and get a proper readout you can compare across both batteries.


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