Quote:
Originally Posted by Cavie
Lights and radio are 12 volts.
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Yes they are but.... The Converter will be supplying power to the 12 volt buss and the converter runs off 120 volts. When your battery is low the converter will be recharging it and it may be pulling a few amps in doing so.
I've noticed this when I have my little inverter/generator connected and set to idle down. When first connected, the generator will spool up and I can see a boost charge going to my batteries (battery monitor gauge of course). When the converter steps back the charging, the generator slows down because it is supplying less power to the converter.
So, don't forget the total amp draw required. It will not only be the air conditioners but may include the fridge, converter, etc.