acceptance charging rate AGM batteries
Hi all, It is generally thought that acceptance rate for a flooded deep cycle battery is about 12.5 amps per 100 amp-hours of capacity once the bank is at 85% state of charge. I know that accept...
Forum Discussion
MrWizard wrote:
ok i'll confuse the issue a little
What do you mean by 'c'
batteries have an AmpHrs capacity
often called C20
which is total capacity from full charge to depleted, normally a cell voltage below 1.7 or approx 10.42 for the whole battery
a battery with a c20 rating of 100ampHrs
a c/5 charge or discharge is 20amps
so to me 2C means a discharge rate of 200amps
a 45ampHr gel discharged at 2c would be putting out 90amps
is this what you mean Naio ?
Yeah, that is what I mean. In the particular case, it was 66 aH batteries, with momentary loads that blew 100amp fuses.
IIRC the specs on mine said 496 watts per cell
thats over 200amps for something like 45 minutes to depletion
the 8hr capacity is 135amphrs thats 16+amps for 480 minutes
31 amps for 2 minutes is almost nothing
Oh, great, thanks for posting the numbers for our batteries! Very useful. Is that per cell or per battery?
