The 12V (on the right side of the photo) is 215 AH, 65AH for the 36V side. With the Power Pole Charge, you set up the charging priorities in the app, and I think I have it pretty evenly split between engine and trolling, maybe biased slightly to the trolling side having priority. With that, the PPCharge then manages what gets charged or used when. I copied what John Crews does for the setup – I think he has several youtube videos about it, one just this week (his physical layout is a bit different than mine as he sets his boat up from scratch with more compartment space in the Puma STS, whereas I went with some of the constraints that were in place from when I had the old batts). I don’t fish tournaments so I didn’t see a need for multiple batts on either the 12V or the 36V side. I just run one per side (it was expensive enough as it was!), and if something goes wrong (which I don’t think will happen, but you never know) my recreational fishing day would just end early. I dropped about 145 pounds in the switchover.
Having stated that, based on my last time out, I could probably go several days without plugging in to recharge with this setup. I was out a total of 9 hours, 1.5 of that on the big motor (Yamaha SHO), the rest fishing in moderate winds and seas, and the TM (Ghost 36V) running at about 40-50% for 3/4s of the fishing time. On the 12V side, I have 2 HDS Live 12s, Active Target, StructureScan 3D, 2D in-hull, and Active Image 3-in-1 on the Ghost, none of which I turn off when not using. When I was done at the end of the day, I was at least at 95% power remaining on both 12 and 36. The alternator recharge when running on the big motor is VERY efficient with PPCharge, and lithiums charge much more quickly than AGMs and lead acids. The lithium batteries are incredible, but the Power Pole Charge is the star of the system.