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Old 12-15-2017, 02:27 PM   #1
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2017 holiday rambler vacationer 35k

Does anyone know if the inverter is accidentally left on, will it drain engine battery?
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Old 12-16-2017, 09:27 AM   #2
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Hi ! Welcome to IRV2! We're sure glad you joined the gang!

I think the inverter runs off the house batteries. Either way, if it's left on and not connected to shore power I would think it would run the batteries down.

Good luck, happy trails, and God bless!
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Old 12-16-2017, 12:09 PM   #3
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The inverter is connected to your house batteries and will not affect your engine batteries. Most quality inverters will go to sleep after awhile, but you'll still have some drain that will eventually run your house batteries down.
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Old 12-17-2017, 04:17 AM   #4
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That's what we think too...inverter connected to house/coach batteries. We are leaving something on that is running engine battery down and we can't figure out what???? Any ideas???
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Old 12-17-2017, 05:30 AM   #5
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Jbrisbin-

Welcome to iRV2!

The manual for your coach says there's a chassis battery disconnect switch.

1) Have you found the switch and tested it to see if it works correctly?
2) With the chassis battery disconnected using the switch, does the battery still lose voltage?
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Old 12-17-2017, 06:34 AM   #6
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Quote:
Originally Posted by Jbrisbin View Post
Does anyone know if the inverter is accidentally left on, will it drain engine battery?
No it shouldn't, but it will drain your house batt's over a short time. Make sure you ALWAYS turn OFF the invertor, main chassis batt switch and the main house batt switch before you store the coach. We never turn our inverter but we're always hooked to shore power.

BTW...even after turning everything OFF, look at the dash and see if your radio switch is turned OFF. Many coaches (like ours) has a separate switch for the radio. Be sure that switch is turned OFF too just to make sure the radio isn't draining the chassis batt. I know this sounds a little crazy but check it. If you're unsure which way is OFF for this switch, check your manual.

If your batts were drained to very low levels (like below 11.0 or less) they are probably trashed now and probably will never be able to be restored to a healthy, reliable condition. Do a gravity test on each batt cell with a GOOD hydrometer to determine their current condition. (check YT, search RV Geeks on how to do this)

There are a lot of things that could still pull some power from the house batt's even with all the above things turned off, like the CO2 alarm, possibly smoke detectors, etc. but they are unlikely to drain the batt's to critical levels unless you don't drive your coach very often.

If you decide to try to charge and batteries back up after performing the above tests, be sure to disconnect everything from your batteries first and isolate them. If you don't, an auxiliary charger—could—send high charge voltage to things like your fridge and other electronic board controlled devices and damage the control boards.
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Old 12-17-2017, 01:47 PM   #7
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"Jbrisbin:.....You don't say how long it takes to run your chassis battery down. If it's 2-3 weeks, that can be pretty normal and is caused by small items continuously drawing power, like your dash radio.
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