question

mlsp avatar image

Dumb question? Series and Parallel batteries.

Hi, this may be obvious, but I've got to ask...

I have a 12v battery bank consisting of 4x 6V, 200AH, AGM batteries.

I have 2x2 connected in series to form 12v, then these blocks of two are connected in parallel - giving a 12v system.

My question is: What is the total AH size of my battery bank. Is it simply the combined total of all batteries? ie 4x200AH=800AH

Or is it the size of only those in parallel? ie 2x200AH-400AH?

Thanks

battery capacity
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2 Answers
seb71 avatar image
seb71 answered ·

checkit got your answer.


If you are building your system and you did not bought any inverter yet, consider changing it to 24V.

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checkit avatar image
checkit answered ·

@MLSP For batteries in series, add the voltages. For batteries in parallel, add the Ah ratings.

Therefore, your second answer is correct - 400Ah@12Vdc.

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Ah - that's terrific. Thanks for your help. :-)