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SJ-Chris's avatar
SJ-Chris
Explorer II
Mar 04, 2021

Adding a new battery...questions....(venting/gassing)

I've got two 2015 Thor Majestic 28a Class C RVs. One of them now has two AGM Group 29 batteries (I believe they are Group 29s) for the coach. The other RV has two lead acid Group 29s. All the batte...
pianotuna's avatar
pianotuna
Nomad III
Mar 04, 2021
Unless the batteries are almost unused, adding a 3rd battery may not be a great idea. If you can afford it, replace all three.

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