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Old 03-17-2017, 12:47 AM   #1
Brand: Thor Motor Coach
Model: ACE 30.1
State: California
Posts: 39
THOR #5809
2016 ACE 30.1 House batteries

It came new with two 12v batteries in parallel. I can't find any markings on them. Anybody know? Manufacturer, group size, AH rating?

Also, I see that there is room there for somewhat larger batteries - an inch or two more in length and width, maybe more in height. Anybody know what I can fit in there?

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Old 03-17-2017, 01:34 AM   #2
Senior Member
Brand: Thor Motor Coach
Model: hurricane 32n
State: Florida
Posts: 784
THOR #4158
Probably Harris batteries, Thor uses on most units.

Jerry and Debbie
2015. Hurricane 32N /Kia Soul toad
Crawfordville Fl. Vietnam Vet.
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Old 03-17-2017, 02:37 AM   #3
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Brand: Thor Motor Coach
Model: Hurricane 29M
State: California
Posts: 2,681
THOR #3156
Worldwide batteries. I just spoke to Thor about them. They stopped using the Harris a few years ago. Worldwide us probably just as bad

I believe they are group 27

Jerry, Maria, and Sasha 6lb Yorkie
2017 Thor Hurricane 29M
2016 Jeep Wrangler Unlimited Sport
FMCA # F464385
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Old 03-17-2017, 03:13 AM   #4
Senior Member
SuperD's Avatar
Brand: Thor Motor Coach
Model: 2017 Windsport 29M
State: Indiana
Posts: 3,692
THOR #5196
Thor must have had a lot of left over Harris batteries cause that's what I have in mine. Purchased our coach in June 2016, no wonder that don't hold much of a charge!!!
USMC Veteran
FMCA 101070S

Dave & Myra
One day your life will flash before your eyes,
make sure it's worth watching!
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Old 03-22-2017, 11:54 PM   #5
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DenverTransplant's Avatar
Brand: Thor Motor Coach
Model: ACE 30.1
State: Colorado
Posts: 388
THOR #5190
Had Harris batteries on my 2017 until this morning. Mine had a date of 5/16 so Thor was still getting new ones. Now I have 2 6V Interstates. Harris batteries lasted 8 months. They wouldn't take a charge - 12.6v to 19.1v in 4 days with no load.

Given the various posts I've seen about Harris not honoring warranties I didn't bother trying to get them replaced...with the same. Time, cost of driving 50 miles to CW and the hassle with them did not make it worth even trying. I also changed out the WFCO converter with a Progressive Dynamics.
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