6 volt battery issue question about load
so I have 2 different pairs of 6 volt batteries on my toyhauler. one set from Costco, the golf cart bats, with a date on them of 4/12. they had been sitting in my garage for about a year-year and a ...
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Your likely not starting with fully charged batteries. Taking the bank to 13.6 is nowhere near fully charged from a discharged state. You need to hold those batteries at 14.8 volts for at least 2 hours and that would likely get to 95%+ full.
Also pulling around 70 amps DC (7 amps AC through inverter) is going to cause battery voltage to dip pretty low. That's a significant power draw. I would fully expect battery voltage to drop well below 12.0 volts with several minutes at that power draw. Under ant significant power draw, battery voltage is not a good indicator of charge state. Battery voltage charge state estimates is only good at zero draw on the battery
Also pulling around 70 amps DC (7 amps AC through inverter) is going to cause battery voltage to dip pretty low. That's a significant power draw. I would fully expect battery voltage to drop well below 12.0 volts with several minutes at that power draw. Under ant significant power draw, battery voltage is not a good indicator of charge state. Battery voltage charge state estimates is only good at zero draw on the battery
