Engine battery recommendations

Update, well it looks like I need to start replacing batteries. I took it out end of April, was ok, not a lot of punch, but was able to start engines. Took it out again over memorial, and had to use a jump starter at least three times. I'm going to start with the engine battery and put in a disconnect switch to ensure it's disconnected while in storage. I always turn the switch off, but it shouldn't have been that bad given I was accessing the RV almost every week before mem day to get work done it so quite a bit of driving from storage to house, to shop, etc.