# and Type of house batteries
I have a 2019 Jayco 22' C Class. is it better to have one group 27 battery or two group 24s?
Forum Discussion
ron.dittmer wrote:
My personal experience with motor home batteries......
Two smaller 12V batteries will not perform better over time compared to one larger battery. They will when new, but year number 2 will have noticeable degradation. Year number 3, they will be working against each other. Indication of battery mismatch will show up as acid boil-overs.
I do feel that two 6V batteries of a smaller size will perform better than a single 12V battery of a larger size.
To clarify the report, were those two 12v batteries "balanced" as in the loads and charging were "across" the two, or were the loads and charging on one of them with the second battery "downstream"?
