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...
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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 ?
this type of load for more time than what is need to crank and start an engine is very bad for the battery
the most load i have seen on these (5) new batteries
was while using the MW to warm up a cup of coffee
got to go find the post, but im thinking it was 154 amps, just under 31 amps per battery
they are rated for more than that
and that has only been a couple of times
my next MW will be a lower power unit
when someone is talking about the MW or coffee maker or Nuwave cooker
loads, the load PER battery is the important item, not what ever the total load is, the total load is only NEEDED to derive the Load PER battery
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
overnight load PC qnd lights and 6fans until 11:30 pm
then 3fans fridge etc until 7am
total overnight usage 154 ampHrs, SOC at 7am 78.6%, 14 amp load at 7am
voltage reading 12.54v
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 ?
this type of load for more time than what is need to crank and start an engine is very bad for the battery
the most load i have seen on these (5) new batteries
was while using the MW to warm up a cup of coffee
got to go find the post, but im thinking it was 154 amps, just under 31 amps per battery
they are rated for more than that
and that has only been a couple of times
my next MW will be a lower power unit
when someone is talking about the MW or coffee maker or Nuwave cooker
loads, the load PER battery is the important item, not what ever the total load is, the total load is only NEEDED to derive the Load PER battery
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
overnight load PC qnd lights and 6fans until 11:30 pm
then 3fans fridge etc until 7am
total overnight usage 154 ampHrs, SOC at 7am 78.6%, 14 amp load at 7am
voltage reading 12.54v
