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Normal voltage values? 1800

posted by  matt b on  Fri Oct 31 06:54 CST 2003
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last visit: Tue Oct 14 16:33 CST 2014
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>Battery 12 volts, 60 Amp/hour:

>100% charge = 12.66 volts
>75% charge = 12.45 volts
>50% charge = 12.24 volts
>25% charge = 12.06 volts

Any idea if those values would be an appropriate guide for non-automotive 12V batteries? Specifically, I hooked up some almost new 2 volt phone company backup batteries wired to 12 volt for my off-the-grid home. Total of 12 batteries totaling ~3000 amp/hour. I'm told that I'll wreck the batteries if I let 'em get below 80%.

They are rated at 2.25v/cell, so each bank of 6 batteries would be 13.5, and I don't know where that 80% would fall..

Sorry for the off topic...
-matt





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New Normal voltage values? [1800]
posted by  sberry  on Sun Oct 26 10:02 CST 2003 >


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