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Old 05-24-2021, 02:55 PM   #1
Junior Member
Brand: Thor Motor Coach
Model: Chateau 22b
State: New York
Posts: 24
THOR #6388
House battery replacement

I have 2017 chateau 22B and want to replace the house battery. The spec sheet doesn't list any battery spec's.

Can anybody recommend a deep discharge battery spec?


El Pirate is offline   Reply With Quote
Old 05-24-2021, 03:10 PM   #2
Senior Member
Brand: Thor Motor Coach
Model: '17-Vegas 24.1
State: California
Posts: 2,087
THOR #13362
Lots of posts on this topic.
Always start with the SEARCH function

That said, it really depends on your rig and what you’re trying to accomplish.

The simplest and most cost effective battery replacement is a Flooded Lead Acid Deep Cycle.
FLA’s match with your OEM converter/charger
Your battery tray probably fits a Group 24 or 27 size

I purchase mine at Costco (Interstate) or SamsClub (Duracell)
They generally cost under $80

Other options...
- adding a 2nd battery for your house bank
- upgrading to AGM
- reconfiguring to two 6 volt
- and finally the ultimate upgrade to Lithium
'17 Vegas 24.1
Fallbrook, CA
taylorbob1 is offline   Reply With Quote
Old 05-24-2021, 03:18 PM   #3
Senior Member
Brand: Thor Motor Coach
Model: Chatea 31E
State: Maryland
Posts: 424
THOR #5837
My Chateau fits group 27 size. Mine came with 2 batteries, but the second battery was an option.
jabrabu is offline   Reply With Quote

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