How to choose new 8D house batteries.
Existing batteries are 5 yrs old 8D AGM's. after only running my ceiling fan for an hour or two they're discharged down to 12.5V from 13.5. I'm guessing they are nearing the end of their lifespan.How ...
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An amp hour rating of 200 is the same whether 6 or 12 volt.
Properly hooked up, series parallel, for each pair of 6 volt 225 AH batteries the usable AH is increased by each set. With each additional set the multiplier is 225.
With my example of 6 - 225 ah batteries the rating is 670 AH.
If it did not work this way anyone with 6 volt batteries would be limited to the rating of the two batteries. no sense in adding more.
The way it works.
A series connection will double the voltage, while maintaining the same capacity equal to the rating of the individual batteries.
A parallel connection will double the capacity while maintaining the same voltage.
A series/ parallel combination connection will double the voltage and double the capacity.
Properly hooked up, series parallel, for each pair of 6 volt 225 AH batteries the usable AH is increased by each set. With each additional set the multiplier is 225.
With my example of 6 - 225 ah batteries the rating is 670 AH.
If it did not work this way anyone with 6 volt batteries would be limited to the rating of the two batteries. no sense in adding more.
The way it works.
A series connection will double the voltage, while maintaining the same capacity equal to the rating of the individual batteries.
A parallel connection will double the capacity while maintaining the same voltage.
A series/ parallel combination connection will double the voltage and double the capacity.
