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How will I know that how many batteries I should connect to
my UPS unit?
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Answer Posted / shamim ahmed
You Should Know the KVA rating of your UPS, time you want
to get Back-up & the Battery input voltage of your UPS.If
your UPS rating is X , time T and the UPS input voltage is
V then the Battery current capacity is:
I=X*T*1.25/V*0.7 AHr
suppose battery input voltage of your UPS is 36V and you
find the Battery capacity from calculation is 300Ahr.
then you can use 3pcs 12V 300AHr battery in series or you
can use 2pcs 36V 150AHr battery in parallel.
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