I needed 2 new batteries about two weeks ago then we had to leave the RV in storage for 12 days,also needed to leave the Refridgerator running on Gas. When we got back to the RV the batteries were dea...
Yes it is very possible, depending also on the SOC of the new batteries. When new batteries are purchased it is best to fully charge them before putting them into service. It is also a good idea to check the SPG and equalize if needed. These two things will get them started on track for longer service life, along with proper maintenance. Any time a battery sets at less than full charge it begins to deteriorate, shortening its service life.