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
pianotuna wrote:
Hi Naio,
Yes, I do run the microwave from the inverter/battery bank.
But it represents a load of 160 amps and I have four twelve volt jars. So the load per cell is 40 amps. From a capacity point of view I have 556 amp-hours. So I'm loading at 28% of capacity when I use the microwave. Or c/3.5.
Run times tend to be short. For example, lunch today was a left over boneless pork chop sandwich heated in the microwave for 44 seconds (actually two 22 second runs). Two nights ago I had popcorn. Run time of 2 minutes and 22 seconds.
My biggest use, so far, was in June when I was being a "power pole princess" at an inadequately wired campground (is there any other kind?) I was forcing the Magnum into doing not just load support but voltage support. That meant drawing 64 amps from the battery bank for several hours. The numbers say 16 amps per cell. Or C/8.8.
I should never have to do voltage support now that I have the autoformer, and it will be automatic.Naio wrote:pianotuna wrote:Do you actually use that on the batteries?
The worst load is the 1591 watt microwave.
That's cool! Did not realise I would be able to run mine, when I get my 4 big jars into service.
Are longer runtimes at lower wattage better or worse? I have a halfpint (nominally 600watt but have not tested it) and a larger one. Wondering which I should bring with me when I greturn to the batteries. The halfpint takes about twice as long to heat food, as one would expect. 8-10 minutes vs. 4-5, for a frozen stew.
