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Old 11-28-2022, 11:00 AM   #1
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Charging Question

I have a new to me 2019 Dutch Star. I store it in a garage that only has a 15 amp power source. If I plug the coach in with an adapter will it be enough to charge the batteries? I will not be keeping anything e
Demon in the coach. If not I have a battery tender I used with my last single battery RV. Can I use the battery tender on the duel engine batteries by hooking one to the positive terminal and the negative terminal on the second battery.

Thanks Rob
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Old 11-28-2022, 11:22 AM   #2
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I have a new to me 2019 Dutch Star. I store it in a garage that only has a 15 amp power source. If I plug the coach in with an adapter will it be enough to charge the batteries?

Yes it will be enough to charge and maintain lead acid batteries. A built in battery charger that draws 13 amp at 120 volts will provide a little less than 130 amps at 12 volts to charge batteries. Your charger may charge at 50 amps and draw a little more than 5 amps at 120 volts.

You must consider other 120 volt and 12 volt appliances that may be running at the same time. Switch them "off" for storage.

I will not be keeping anything e
Demon in the coach. If not I have a battery tender I used with my last single battery RV. Can I use the battery tender on the duel engine batteries by hooking one to the positive terminal and the negative terminal on the second battery.


Some RV's will maintain the engine start batteries from the built in house battery charger. Some will not. Some only maintain the engine battery when the house batteries are fully charged.

Measure the voltage on the battery terminals. 13.2 volts is the ideal maintenance voltage. Between 12.7 volts and 13.6 volts is OK. 14.4 volts is too high.
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File Type: pdf Storing Lead Acid Batteries.pdf (101.5 KB, 4 views)
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Old 11-28-2022, 11:22 AM   #3
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My three DP's have been parked on my side yard for the last 17 years. They've all been plugged into a 20 amp outlet without issue. It's enough to charge my batteries and run my residential refer.
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Old 11-28-2022, 11:24 AM   #4
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Yup, you can.
I store mine for the winter months in our barn, and I disconnect the hot (+) lead on the chassis AND coach batteries and use a battery tender on each set.
I do check the water level in each battery once a month, and that's it.
Come back in the spring and all is well.

Mike in Colorado
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Old 11-28-2022, 05:43 PM   #5
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Thanks for the info guys, and wow I should do a better job proof reading my posts. I wanted to say nothing will be left on while the RV is in storage.
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