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ZZSPIRAL1's avatar
ZZSPIRAL1
Explorer
Aug 12, 2012

Generators and charging RV batteries - Questions/Comments

I'm seeking an education on generators. First off, I have a new Yamaha 2000IS. It's great, but I do have some questions. I have one battery 85 ah battery, and will eventually get a bigger one. I d...
time2roll's avatar
time2roll
Nomad
Aug 14, 2012
ZZSPIRAL1 wrote:
Okay, if I understand correctly:

2. If we assume the generator provides 7.5 amps of power into the converter, then simple math says the converter will provide 10 times that (75 amps) into the battery. This is because the generator provides 120 volts and the converter converts it to 12 volts.


Conversion has some losses. And due to power factor the generator will need more apparent power than is used. So use a factor of 5 or 6 instead of 10.

7.5a gen = 45 amps battery.

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