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Interesting thread — following with curiosity because I nearly went down the PowMr route before settling on a Victron setup for my shepherd's hut. The 120V spec is a bit of an oddity for us UK...
@DaiYoung56 worth noting the CA/US stock point — if you're in the UK you're likely looking at import duty + VAT on top of whatever the listed price is, which can wipe out the "tempting"...
CE_Builds in Batteries & BMS 1 month ago
@BlownFuse — azimuth is worth obsessing over slightly less than people think, because the longer day length actually compensates quite generously for suboptimal orientation.
Lakeland Nomad in General Chat 1 month ago
Winter solar is genuinely brutal, isn't it? I've been through this exact struggle with my static and previously with a T5 camper conversion, and the short days combined with low sun angle just...
Had a similar headache last month after pushing the Cerbo GX update on my static caravan setup. Was running v3.64 without a single grumble — Renogy battery bank showing up perfectly over RV-C,...
Been down this rabbit hole with my van build and honestly, a proper capacity tester is the one bit of kit I wish I'd bought before committing to a battery bank rather than after questioning every...
SIE_Electric in Batteries & BMS 1 month ago
Worth checking your transfer switch delay setting in VEConfigure too — there's a param for how long the MP-II waits before accepting grid input back.
@WattSue same — got the Orion-Tr Smart on the boat and it's night and day vs the old split charge relay setup.
Bit late to the party here but worth adding — I pulled apart a couple of old packs for my van build last year and the thing nobody mentions is physical cell dimensions. LiFePO4 cells from...
John Dixon in Batteries & BMS 1 month ago
One thing I'd add from running my shepherd's hut — ambient temp makes a massive difference. My little chest freezer pulls way less in summer than it did last winter when it was cycling constantly...
JLB_Boats in Q&A 1 month ago
Been wrestling with this exact dilemma for my garden office setup. Currently running a 48V system with a pair of Fogstar Drift 100Ah LiFePO4 batteries and a Victron MultiPlus, and I've been...
Salty Rigger in Batteries & BMS 1 month ago
Good points from everyone above. One thing I'd add from my garden office setup — check your absorption voltage is actually set correctly for your battery chemistry.
Been doing some deliberate grid-loss testing on my Victron Quattro setup after reading about the grid instability incidents on the continent recently.
Sue Thompson in Batteries & BMS 1 month ago
Blimey, yes — fat-fingered it on the phone and didn't notice until three people pointed it out, which says something about my proof-reading skills (or lack thereof). Right, here's the full...
Good question to stress-test before committing. One thing worth adding to what @SimonKelly mentioned — the depth of discharge matters as much as the raw capacity figure. A 200Ah Fogstar Drift...
BlownFuse in Q&A 1 month ago
Hey @Harry1965, yes curious to hear the rest of your setup too — @OffGridMax beat me to it! The MultiPlus-II is a solid choice for a permanent pitch situation like that, especially if you're...
@ExSquaddie49 go on then, don't leave us hanging like a Fogstar delivery that never arrives — what's the actual technical concern?
Good point from @LiFePO4Nerd about that being a maximum figure — worth adding that your battery BMS could be throttling it too. Had this exact situation with my static caravan setup running...
Had exactly this scenario last winter with my garden office setup. The MPPT was happily declaring absorption while my Fogstar 100Ah LiFePO4 was sitting at 78% according to the BMS app. The culprit...
Every October I go through the same nonsense. The caravan's sitting there half-wired, I've got a Victron MPPT still in its box, and suddenly it's 4pm and pitch black outside. What actually got me...
Borders Nomad in General Chat 1 month ago