Doug

@Brummie86 Had almost the identical setup last year on my shed build. One thing worth trying before you conclude it's a duff cell — give the whole pack a proper top balance.

Doug1981 | 847 posts @Mike1997 Had almost identical symptoms on my setup last autumn. Worth checking your cell interconnect busbars first — sounds obvious but a slightly loose bolt can cause...

I've just finished roughing in the electrics on my 12x8 timber cabin up in the Scottish Borders and I'm starting to think my 400W of solar panels isn't going to cut it through the winter months.

Really good thread this. One thing worth mentioning that hasn't come up yet — if you're mooring in tree-lined cuts through winter (which on a narrowboat is basically unavoidable), the MPPT's...

Doug1981 | Posts: 847 @OakTel The cell divergence you're seeing under load is a classic sign of that one cell having higher internal resistance than the others – worth doing a proper IR test on...

Right, looks like half these posts got eaten by the forum gremlins! 😄 @GoldenMaker from what I can piece together, with parallel Orion Smart TRs and a VE.Bus BMS V2, the current output behaviour...