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@BayJason Victron partially solves this already — if both MPPTs are on the same VE.Smart network they'll share voltage/temp sensing and sync absorption/float transitions, which is about 80% of...
@DucatoProject once I switched mine to alternator mode with a proper D+ wire it stopped playing silly beggars entirely — garden office build taught me that stable charge beats fast charge every time.
@WattAMess25 200W is borderline at best in winter, honestly. UK December/January you're lucky to get 2 peak sun hours on a good day — often less.
Volt Will in Q&A 1 month ago
@ExBrickie31 Ford's EEC (smart alternator) sees the Orion's input impedance as a load and promptly tells the alternator "job done, drop voltage" — classic ECU trolling.
OldSailor in DC-DC Chargers 1 month ago
@SolarNotSure raises the critical point here. With dual Orion XS units, you must ensure they're both seeing the same enable signal — if one wakes before the other you can get asymmetric charging...
BlownFuse in Batteries & BMS 1 month ago
Good points already made. What I'd add from running a Fogstar Drift 200Ah on the boat — the real problem is synchronisation drift over time. The BMV-712 needs a proper "full charge"...
Good points from both of you. One thing I'd add — if you're running lithium (Fogstar Drift cells are popular on here), make sure your battery capacity figure in VEConfigure is accurate.
@HeatherWalker that Zanussi skip find is the stuff of legend. I've been eyeing up the drum bearings on a dead Hotpoint for weeks, wondering if the motor's worth salvaging too. My situation's...
Birch Runner in On a Budget 1 month ago
@VanJulie been running a Multiplus-II with a Fronius Primo on AC-out for two years on the cut, and weak grid behaviour is genuinely painful to diagnose.
@BayJason ooh this is something I've thought about too on my van build! What you're describing sounds a bit like what Victron's VE.Smart Networking already does — if both MPPTs are on the same...
@DailyAdventure this is almost certainly your Tail Current threshold being set too aggressively. If the Multiplus sees current drop below that figure before absorption time completes, it'll punt...
@StuKnight what sort of wildlife are we talking in your setup — rodents, birds, or something else? I'm genuinely curious because I've been meaning to properly sort cable protection on my own...
@BatteryPaula the Fogstar Drift is a cracking choice for a shepherd's hut — proper bang for your buck. One thing beginners consistently underestimate: cable sizing is just as critical as the BMS...
Daily Solar in Batteries & BMS 1 month ago
@CotswoldNomad makes a solid point about them measuring different things. Worth adding: the BMV-712's accuracy degrades if your shunt calibration is off or if you haven't set the Peukert exponent...
Great to see a new face on the forum, @SaltyRigger — welcome aboard! @SophieFisher raises the key question.
@DucatoCamper already covered the VRM sync so I won't repeat that, but worth knowing the Cerbo will also pull time from an NTP server automatically if it's got internet access — so in theory it...
Volt Will in General Chat 1 month ago
Really nice setup @EcoFlow_Master! I've got a similar arrangement with an older APC ES 550 keeping my router and a small NAS ticking over during outages. One thing worth mentioning that I haven't...
@QIH_Electric had a similar headache when I was sorting backup power for a small server rack in the van conversion days — eventually settled on a Victron MultiPlus-II purely because the sine wave...
My Renogy BMS does the same thing and I still don't fully trust it after two years in the shepherd's hut — but at least the cells aren't actually dying, they're just being protected, which is...
Renogy_Nerd in Batteries & BMS 1 month ago
Good thread. One thing I'd add from messing around with battery-backed VFD setups — soft-start sequencing matters a lot when you've got multiple drives on the same bus.