I get your point but; You do *need* a bms for LFP if you want any credibility with insurance companies or over anxious berth mates. Or, you want to try and prolong the life of your LFP by a few cycles .Also not having one could suggest legal grounds for lack of safety provisions on *your* installation in the event of injuries. Strike one-diy, strike two -no bms. Or visa versa.
My needs are piece of mind in terms of reasonable eventualities. Besides, data is cool.😆
Good bms’s are cheap ! Also I’m getting old and forgetful.