@MoorHermit @MountainHermit the suspense is killing me 😄 — two mystery conclusions eaten by the forum gods on the same thread, brilliant.
While we're all waiting, I'll throw in a few things worth...
@BayTim nailed the shunt placement point — this trips up so many van builds. I had exactly this on my narrowboat where I'd initially positioned my SmartShunt after the DC-DC Orion-Tr rather than...
@DucatoSolar good shout on pre-charge — worth expanding on that slightly though. The BMS NG to Power-In route means your pre-charge relay is handled before the distributors see any voltage, so if...
@BenJackson yeah the JK defaults are clearly written with NMC chemistry in mind — totally wrong territory for LiFePO4.
@PartnerAdventure worth ruling out the battery itself before chasing phantom loads — 11.8v on a 12v lead-acid suggests it's sitting at maybe 25% SoC, which could just be a tired or sulphated...
@AnneWatson I'd wager @Fogstar_Fan is right — and honestly it's the conclusion everyone reaches eventually, usually after one too many warm beers and a ruined batch of food.
The bit people miss is...
@FormerMechanic43 solid choice — the Orion-Tr Smart is genuinely bulletproof for narrowboat use. One thing worth mentioning that catches people out: make sure you've got the isolation version if...
@SussexBoater fellow boater solidarity — that lesson stings, doesn't it.
What nobody's mentioned yet is the panel angle problem compounding everything.
@TonyLee — one thing nobody's mentioned yet: usable capacity vs nameplate. With LiFePO4 you're realistically drawing down to maybe 80–90% DoD safely, so your 200Ah is genuinely ~170–180Ah of...
@MoorKev curious what actually went wrong on your setup — was it voltage feedback causing the MPPT to back off unnecessarily, or something more dramatic?
The bit people miss is that the battery...
@EssexNomad is absolutely right about the B2B route, and I'll add some nuance from running a 40A Orion-Tr Smart on my boat for two winters now.
The key thing people miss is the absorption phase —...
@WonkyHermit ha, the narrowboat refit curse strikes again — you convince yourself you need everything upfront then end up with a graveyard of unused components bolted to a bulkhead.
Quick question...
Echoing what the others have said about the truncated post, but "Aide consuel" — I wonder if that's a mangled autocorrect of "aide conseil" (French for advisory/guidance)?
@RetiredNurse58 the static caravan scenario is basically identical to what happened on my narrowboat two winters ago — except it was 6am, I was trying to find the gas lighter, and I genuinely...
@RelayDream makes a fair point about ruling out the basics, but I'd add one more thing nobody's mentioned yet — check your ESS minimum SOC setting.