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
Hi Mex,
My real life is 160 amps of draw for 2 minutes and 22 seconds. Battery voltage remains at 12.1. The bank was not at 100% for this test.
My real life is 160 amps of draw for 2 minutes and 22 seconds. Battery voltage remains at 12.1. The bank was not at 100% for this test.
MEXICOWANDERER wrote:
An exercise
BCI load test of a 800 CCA starting battery
50% of rated BCI CCA amps is the formula = 400 amps.
A 400 ampere load is imposed.
For 15-seconds
Voltage at the end of 15 seconds of load must not have drooped to less than 9.6 volts (temp comp).
While this example is not a real-life example of RV battery discharging it should show the relationship of how a battery reacts to a load. 9.6 volts is far too severe a load for usage (it's only for testing the battery).
My personal choice for discharge maximum is 20% of total amp hour rating, and that is for limited time loads like heating coffee in a microwave.
