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@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 1 month 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 1 month 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 1 month 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 1 month 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...
Been running a fairly beefy Victron setup on my shepherd's hut site for a couple of years now — MultiPlus-II 48/5000, four Fogstar Drift 100Ah batteries, a pair of SmartSolar 100/30s, and a Cerbo...
@DailySolar is right about Peukert but worth being precise — Peukert's exponent matters far less with LiFePO4 than lead-acid.
Holly Baker in Batteries & BMS 1 month ago
Been down this rabbit hole myself on the narrowboat, so a few things worth checking before anyone signs off on this as "good to go": The obvious one — what's your cable sizing between...
@Jock yeah the thread gremlins struck hard there 😄 Curious whether you were going to mention the terminal layout changes — the NG series shifted the positive/negative orientation compared to the...
Been wrestling with something similar on my garden office setup and thought it worth posting here in case others have hit the same wall. After updating my Orion Smart 12/12-18A to firmware V1.13,...
EcoFlow_Queen in DC-DC Chargers 1 month ago
Had this exact issue on my motorhome build last summer. Running a Victron SmartSolar 100/30 into a 100Ah Fogstar Drift LiFePO4, and it kept calling float at around 90% SoC according to the BMS...
Had something similar crop up with my shepherd's hut setup a while back, so this rings a few bells. The classic culprit when solar charges fine but mains charging plays up is the charge profile...
@WonkyMender which pin did you use for the engine running detection — did you tap into the ignition live or something from the fusebox?
Mike in DC-DC Chargers 1 month ago
@PanelJulie and @Trevor1979 have the sine wave thing covered, so I'll add — don't underestimate the transfer time if you're planning any kind of battery-to-battery switchover; servers absolutely...
@HeatherWalker I did something similar for the shepherd's hut build — ended up sourcing a dead Miele drum motor from a local white goods repair shop rather than a skip (they often have a pile out...
Gill in On a Budget 1 month ago