Forum Discussion
MrWizard
Apr 20, 2014Moderator
It's Watts ..not Amps...... watts = volts*Amps
900w at 120v is approx 7.5 amps
But 900w at 12v is Ten times the amps, aka 75 amps minimum, plus inverter power conversion loss
Usually the question is how can I run my A/C from inverter/battery
Same answer .. get a generator
Electric heating or A/C, is just not feasible without a very large battery bank, and then you need the generator anyway so you can recharge the battery bank
900w at 120v is approx 7.5 amps
But 900w at 12v is Ten times the amps, aka 75 amps minimum, plus inverter power conversion loss
Usually the question is how can I run my A/C from inverter/battery
Same answer .. get a generator
Electric heating or A/C, is just not feasible without a very large battery bank, and then you need the generator anyway so you can recharge the battery bank
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