Forum Discussion
DrewE
Feb 10, 2016Explorer II
pianotuna wrote:
Hi Drew 17 amps @ 48 volts =~68 amps @ 12 volts.
Indeed--it's easily sufficient for most usual 12V RV house needs, but not so much for powering a microwave, Keurig, or similar via an inverter, nor for powering a generator starter motor. For the latter, one could easily use the chassis battery in a motorhome or install a separate small starting battery for the generator.
I assume these batteries probably wouldn't self-destruct with higher discharge rates, but instead the performance would go down more and the voltage would sag. The curves do show a relatively significant voltage drop with increasing currents--looks to me to be about 0.5V per amp at 48V. That's somewhat worse than a single pair of golf cart batteries on a percent voltage drop at constant power, if I'm doing my mental math properly.
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