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Old 04-22-2024, 02:34 PM   #1
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House Battery Issue

Ok, be easy on me. Will my Honda generator plugged into my shore power raise and lower my penthouse top without my house battery?

I have the above axle AMG battery that has short somewhere, won’t hold charge, it’s only 2 months old. Rather than canceling my trip, I’m thinking of just disconnecting the house battery using ice chest until I can further diagnose my issue. My reasoning for disconnecting it to limit the damage to my $800 Lifeline battery.

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Old 04-22-2024, 02:36 PM   #2
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What did it do when you tried it?
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Old 04-22-2024, 02:51 PM   #3
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On the one hand, motor surge currents can be 2-3 time steady state but on the other hand, the motor is probably a high gear ratio and so it doesn't pull that much current (probably less than 10 amps steady state). So the max demand would be (2x-3x)= 20-30 amps

In comparison (the generator) 2000W/12V = 166 amps. It depends but it might work.
Even a small battery would help limit the current surges.
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Old 04-22-2024, 03:03 PM   #4
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Quote:
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What did it do when you tried it?

Haven’t tried it battery is above axle and a royal pain to get to, edited my post for better explanation
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Old 04-22-2024, 04:36 PM   #5
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If you you have an inverter/charger I doubt it would work, as they need to be connected to a battery or wouldn't charge. It is possible that if you have a straight converter it may work, especially if it has a power supply mode.

It would be two wires going to the pop top switch. You might be better off rigging it to run off of the starter battery.
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Old 04-22-2024, 06:22 PM   #6
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No inverter, has the old charge wizard. Think I may have found the problem, I was hearing rumbling sound from the radio speakers when the radio was off. I disconnected the amplifier, now charging at 13.12 volts, never would get past 12.11 before? Shooting in the dark here.
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Old 04-22-2024, 07:50 PM   #7
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No inverter, has the old charge wizard.
If you have a progressive dynamics converter..that will likely work.....plug into shore power and try it. Any idea what the 12Vdc output is? 60A?

You can always pull back the upholstery and pull the pins to the actuators and raise the top manually......but the first few inches may be tough....
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Old 04-23-2024, 08:51 AM   #8
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If you have a progressive dynamics converter..that will likely work.....plug into shore power and try it. Any idea what the 12Vdc output is? 60A?
I was thinking that the most direct way to get an answer is to look at the sizing of the cables and figure out the current carrying capacity. At least that would be a ballpark.

60A is a big DC output.

I have done quite a bit of motor testing and we always end up using batteries with a charger. Even a little motorcycle battery will supply much more peak current than the vast majority of battery charger/ power supplies.
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Old 04-23-2024, 10:05 AM   #9
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Traced it back to a bad stereo amplifier. Disconnected the power source, now all good. Noco charger didn’t go into short mode and house battery now fully charged.
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