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Old 06-10-2021, 12:05 PM   #1
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X23B Refrigerator

I am going away this weekend, I just noticed my new battery is bad. Can I run the Fridge on Propane going down the road without a battery?
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Old 06-10-2021, 12:50 PM   #2
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The RV frig uses 12V dc for the control power. In theory you can use the TV power supply through the 7 pin to power the frig. The TV just provides a small trickle charge, not sure how many amps.

Now comes the bad news. From what I have seen it is illegal to pull a trailer that requires electric breaks without a good battery. The battery is used to engage the electric breaks in a breakaway situation.

How have you verified you have a bad battery? If you even momentary connected the wires backwards, you will trip the reverse polarity fuse. I would recommend checking the fuse at the battery and in the fuse box. If you have a multimeter, this will make checking quick and easy.
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Old 06-10-2021, 02:58 PM   #3
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I have put a meter on the battery. it has 2.1V. I just charged it last week. It is only 2 months old. Going for a new battery.

Thanks
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Old 06-10-2021, 03:32 PM   #4
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Quote:
Originally Posted by Krazyboutcampin View Post
I have put a meter on the battery. it has 2.1V. I just charged it last week. It is only 2 months old. Going for a new battery.

Thanks
I suspect the issue is parasite power drain.

Have you been connected to shore power the whole time? I suspect not with a 2.1 volt battery reading. As the onboard charger will keep the DC power side around 13.6 volts (????).

Items such as the CO/gas detector, radio, jcommand system all consume a little bit of power just sitting around doing nothing. Unfortunately, the RV industry has not implemented the same technology to put things like radios asleep.

If I am not connected to shore power, I try to disconnect my battery if it will be sitting idle for more than a few days. In the past I have been able to go about 2 weeks before my battery hits the 50% charge level. But leaving even one light on, can drop the voltage rapidly.

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