Loading ...I think u need to check real world experience of Lith batteries, I doubt very much they can sustain 50 % drawdowns and immediate chargeing over decades.
I think u have to run them down to near zero and then slow charge ’em back to 100 %, then repeat etc. Partial run down followed by partial charging kills them v fast.
I know a mate who with some mates all bought lith fueled Golf buggy’s, a while back. He religiously followed the instructions, near total discharge then slow charge, his mates just plugged ’em in whenever they remembered…his is the only one that will hold a charge now, the rest run out in no time….
10 bucks for a phone battery. or 50 for a lap top u can live with but 10 grand for a car battery is a chunk. !!!