Both you and @mbesto here are persuading me to let go of my long held boat anchors based on LiPo tech is a bad fit for deep cycle battery use. I have several expensive SLAs that I have used with an inverter to get power remotely. Replacing that with a lighter/better battery chemistry is something I'd be willing to trade. I guess I need to quit being so curmudgeonly about the new batteries. I bet there's some with similar thinking I can unload these SLAs and recoup some to spend on the new batteries. :thinking-face:

You're reminding me that I have a couple conventional UPSs sitting in the garage. I should unload them before convincing everyone they're junk!