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Old 05-03-2017, 08:05 PM   #1
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Brand: Thor Motor Coach
Model: Four Winds 22E
State: Georgia
Posts: 33
THOR #6687
House Battery for FW 22E

My 2015 Four Winds 22E has one house battery, which seems to be enough, however it will only charge to 1/2 (at least according to the control panel which shows 2 lights). Has any one installed a second battery in series and does that extend the life? Will that be too much voltage?

Thanks from a newbie.
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Old 05-03-2017, 08:22 PM   #2
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Model: Axis 24.1
State: Michigan
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THOR #1150
If the battery won't hold a charge it should be replaced. Adding a new one to that will just ruin the new one.
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Old 05-07-2017, 03:32 PM   #3
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What Jamie said. Buy 2 new batteries, run them parallel, and put the worry behind you.
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Old 05-07-2017, 04:48 PM   #4
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Brand: Thor Motor Coach
Model: Four Winds 23U
State: Illinois
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If its the battery that cane with MH, it is probably junk. I replaced mine with Interstate and have had no problems and decided not to add an extra battery at this time.
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Old 05-08-2017, 03:21 AM   #5
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Model: Hurricane 32A
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Quote:
Originally Posted by Top2MP View Post
My 2015 Four Winds 22E has one house battery, which seems to be enough, however it will only charge to 1/2 (at least according to the control panel which shows 2 lights). Has any one installed a second battery in series and does that extend the life? Will that be too much voltage?

Thanks from a newbie.
What the others have said about replacing - and installing one or two NEW batteries...

Wiring a second 12v battery in SERIES will give you over 24v - and likely fry some electronics along the way.

You can wire two 6 volt batteries in series (resulting in combined voltage of 12v) or wire two 12 volt batteries in parallel (resulting in combined amperage of two batteries staying at 12v) - or four 5 volt batteries in a series/parallel config (each pair in series - and then parallel together...)
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