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Exactly the scenario I've been worried about with my motorhome setup. When the engine's at idle, is the alternator voltage actually dropping below the Orion's default input threshold, or is it...
MultiPlusGeek in DC-DC Chargers 2 weeks ago
Haven't experienced this myself with the ESP PowerMan specifically, but it rings a bell from a thread on here a while back.
Agreed with @Stacey on chemistry being universal — LiFePO4 is LiFePO4 whether you're in Ohio or Orkney. One thing worth flagging specifically for a house and barn setup: you'll want to think...
Marine Phil in Batteries & BMS 2 weeks ago
@LochChild the cell question is the whole game really — "our premium grade A cells" on a product listing means absolutely nothing without a brand name and batch test data to back it up.
OffGridGeek in Batteries & BMS 2 weeks ago
What nobody's mentioned yet: duty cycle matters more than the nameplate wattage. A freezer doesn't run continuously — compressor kicks in maybe 20-40% of the time depending on ambient temp and how...
BodgeItAndScarper in Q&A 2 weeks ago
GafferTapeKing | Posts: 2,341 | Location: Array @DucatoLife post got cut off mate, as @FenlandDweller noted.
GafferTapeKing in Q&A 2 weeks ago
@SparkyHiker this took me a while to get my head around when I first set up my cabin system. The BMS is essentially counting charge cycles internally, while your BMV-712 is measuring actual...
Forest Jenny in Batteries & BMS 2 weeks ago
@MarineGeoff has the duty cycle bang on — so you're looking at roughly 20–30Wh per hour of actual consumption, meaning an 8-hour night costs you maybe 160–240Wh total. Your 200Ah (assuming 12V =...
OldSailor in Q&A 2 weeks ago
@George1972 PowMR typically wants the Pylontech RS485 protocol not CAN, so check your battery's DIP switches are set to RS485 mode — Pylontech Fidus Plus defaults to CAN out of the box, which is...
Marine Geoff in Batteries & BMS 2 weeks ago
Ran into something similar when I was setting up the shepherd's hut — the Multi RS Solar's internal MPPT and an external one don't always play nicely under DESS without some deliberate config...
@WD40Wizard11 is right about the phase sync, and worth adding — without the MK3-USB you're essentially flying blind diagnostically.
@BorderCamper my Victron on the narrowboat does the same thing — I've started calling it the "frozen panic face" because the display just stares at you like it's seen a ghost 👻 Classic...
@DailyWanderer had exactly this headache building my van conversion. Running two Fogstar Drift 100Ah batteries and the Remote Console was showing me one blended SOC figure that was essentially...
@DefenderDream the motorhome parallel is exactly what I'd draw too — I've spent ages wrestling with this on mine.
Watt Liz in Garden Offices 2 weeks ago
@SparkyHiker had exactly this gap on my setup last winter — Fogstar BMS was consistently optimistic compared to my BMV-712. Short answer: trust the BMV-712, but only if you've properly configured...
LiFePO4Fan in Batteries & BMS 2 weeks ago
Curious whether anyone's checked the VE.Can network as a source? On my setup I found the CVL was being pushed by a DVCC source I'd completely forgotten I'd configured months earlier. Worth opening...
VE_Boats in Batteries & BMS 2 weeks ago
Worth adding to what @BoatMel said — the battery chemistry side of things is pretty universal regardless of which side of the Atlantic you're on, so we can definitely help there. I've been running...
Stacey in Batteries & BMS 2 weeks ago
@SparkySparky interesting point about the CAN bus — is the PowMR actually expecting the full Pylontech protocol or a simplified version?
George in Batteries & BMS 2 weeks ago
A 60L chest freezer typically draws around 60–90W but only runs ~30–40% of the time, so your overnight load is probably 15–25Ah realistically — your 200Ah Fogstar or similar should laugh at that,...
Marine Geoff in Q&A 2 weeks ago
Good shout from @CraigThompson on efficiency ratings. One thing worth adding: chest freezers are actually ideal for off-grid use because the cold air doesn't fall out when opened, meaning the...
Dodgy Roamer in Q&A 2 weeks ago