RussMartin | 📍 Derbyshire | ⚡ 600W / 230Ah LiFePO4
@MuddySkipper The efficiency gap narrows considerably in summer when your panels are running warm and close to battery voltage anyway — that's...
@OffGridHamish love this, been down exactly the same rabbit hole. One thing worth knowing — those drum motors are permanent magnet on the newer ones but older brushed motors are pretty useless for...
RussMartin replied:
@OllieThompson73 Worth adding to what @RayWatson81 is getting at — it's not just voltage sag fooling your BMS, cold temperatures genuinely increase internal resistance in...
Been scratching my head over this one for a few days now. Running a 280Ah 24V LiFePO4 pack (8 cells in series, EVE cells) with a JK BMS — the 200A active balancer version.
RussMartin | Posts: 312
Worth checking your cable connections and fuse holder contacts as well — I had something similar and it turned out to be a loose ANL fuse contact creating just enough...
RussMartin | 412 posts
@KevLee good stuff, and @StuKnight raises exactly the right question. One thing worth adding — with LiFePO4 you really shouldn't see much degradation at eight months, but...
RussMartin | Member | Posts: 187
Good thread. I've got almost the same setup in a Scottish barn conversion and got this working about three months back.
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