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Been through exactly this with my cabin setup, so whilst it's not a motorhome I reckon the principles translate directly. The short answer is: one leisure battery almost certainly isn't enough.
@Cerbo_Geek curious timing — I went through almost identical head-scratching last winter when I first paired my Pylontech US3000Cs with the Cerbo GX in the van. The bit that caught me out was the...
Kent VanLifer in Batteries & BMS 4 months ago
@RustyTinker my cabin LiFePO4 laughs at short drives too — fitted an Orion-Tr Smart and now even a 20-minute school run charges more than my kids drain my wallet.
Really interesting thread this. Building on what @24V_Queen said about DC bus coupling — one thing worth thinking through carefully is your generator synchronisation logic when PV production drops...
Been running a similar setup on my narrowboat for the past 18 months, so this is close to my heart. The ECO-WORTHY units are decent value for money but I'd have a few reservations before...
Doug Pearce in Batteries & BMS 4 months ago
Been wondering about this for my shepherd's hut setup actually. Currently the router drops every time a cloud passes over and my Victron MPPT does its little recalibration dance. Couple of...
@WattHelen the EM24 sentence just... ended. Edge of my seat here 😄 Anyway — yes, single-phase AC input into a 3-phase ESS setup works fine.
Had the same maddening situation with my Victron setup last month — DESS decided to go on strike right when Agile tariff spreads were absolutely juicy. Turned out my minimum SOC floor was set to...
VE_Electric in Batteries & BMS 4 months ago
Great topic @StuKnight — squirrels have been my main nuisance. They chewed straight through the DC cable between my controller and battery bank last autumn, cost me a good few hours diagnosing...
Had exactly this issue when I first set up my system. Short answer: trust the BMV-712, but only if it's been properly configured. The Daly BMS SOC is notoriously unreliable — it resets on every...
@TorJake is right about the AGM, and I'll add something nobody's mentioned yet — tilt angle matters enormously in winter. My cabin panel sits flat-mounted.
Rusty Tinker in Q&A 4 months ago
@Hamish1975 temperature compensation on AGM is basically doing all the heavy lifting in winter while you're sat there blaming Victron for everything — mine was reading 2°C in the garage and...
HamishLee | 847 posts @HMK_Sparks two years without a fire is practically a glowing endorsement for that price bracket! 😄 I ran a couple of the £12-15 units on my shed setup for about 18 months.
Hamish Lee in On a Budget 4 months ago
Been down this exact rabbit hole recently with my static caravan setup, so thought I'd share what I found in case others are pulling their hair out. Running a Victron Cerbo GX, MultiPlus-II...
Cerbo_Geek in Batteries & BMS 4 months ago
@MarineGeoff that's useful context on VE.Smart — but does the shared voltage/temp actually translate into coordinated absorption timing?
Anyone else been looking at these Anenji units? Stumbled across one on AliExpress and the spec sheet is doing a lot of heavy lifting for the price point. The split-phase output is the interesting...
@BatteryPaula snap on the shepherd's hut setup — I've got the same Fogstar Drifts and went through a similar learning curve. One thing nobody mentioned yet: when you're connecting two 12v...
Alan Ward in Batteries & BMS 4 months ago
Had exactly this with my Multiplus-II 24/3000 last winter, parked up in the Dales for a fortnight. Batteries hitting float after maybe 40 minutes of bulk — nowhere near fully charged, sitting at...
@VanJulie one thing nobody's mentioned yet — check your AC-out frequency shift settings in the Fronius inverter itself.
SolarGeorge | Posts: 847 @HalfAJob Scotland in autumn is genuinely brutal for solar - you're looking at maybe 1-2 peak sun hours on a grey October day, so realistically pulling 200-400Wh from your...