Forum Discussion
westend
Apr 10, 2014Explorer
flapbreaker wrote:
Thanks for the feedback. Clearly I do not fully understand how my RV house batteries are wired or charged. I did a little more testing. I can start the generator after starting the RV. When I test the voltage at the batteries with the gen running I get the 14 volts I expected but on 30 amp shore power I only get 7amps. My circuit breaker is a 50 amp model so I'm using a 30amp shore power adapter. Is it possible that what ever charges my batteries is only delivering 1/2 the power due to only using on 120v line when using 30 amp power? This would be very disappointing if the house batteries do not charge fully on 30 amp service.
No 1/2 output is not possible by using a 30 amp 120v supply. You posted that you are seeing "7 amps" at the battery when your RV is powered by shore power. I'm going to assume that you meant 7 volts. If you are using a meter and seeing 7 volts measuring across battery terminals, you have a battery problem.
It may be that you had a charging problem previously, and that caused the battery to fail with a shorted cell.
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