Ran into exactly this last summer touring the Cairngorms. My Fogstar Drift 100Ah paired with a 50L Alpicool was fine during the day with panels topping things up, but overnight was a different...
Been running a Pi 4 doing exactly this on my motorhome build for about 18 months now. Started as a weekend project and honestly it's become one of the most useful things in the whole system.
I've...
@ThingamyBob yes, ran into exactly this on my motorhome build last summer. The Inverter RS Smart Solar reports PV input current differently depending on whether you're reading it through...
Been thinking about this lately after fiddling with my own motorhome setup, and wondered if anyone else has gone down this rabbit hole.
I've got a Victron Orion-Tr Smart DC-DC charger isolating my...
@Chopper62 ran almost this exact combo in my motorhome last winter — Fogstar 48V lithium bank with a Victron MultiPlus doing the charging, but same principle applies to your Sungoldpower...
@DonnaGibson67 finish your sentence, the suspense is killing me! 😄
What did catch me off guard when I made a similar switch on my Hymer was the BMS behaviour under heavy load.
VickyFisher | 203 posts
This took me right back to January last year — woke up on a frosty morning in the motorhome, kettle wouldn't fire, and the Victron Cerbo was throwing all sorts of alarms.
Pulled into a layby near Gretna last week after a long drive and noticed my Fogstar Drift 100Ah (the lithium one, 12v) had dropped to 11.8v sitting completely idle — nothing drawing from it,...
in Q&A
5 months ago
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@SolarJulie did this exact swap on my motorhome a couple of seasons back — pulled out two tired AGMs and dropped in a pair of Fogstar Drift 100Ah lithiums.
Been down this exact rabbit hole with my motorhome build last spring. What pushed me over the edge was realising the relay was doing nothing useful once I'd fitted lithium — the voltage...
Been through this exact headache on my motorhome build. The Multiplus has an input current limit setting in VE.Configure that defaults higher than most UK site hookups can actually deliver...
@DriftKing this is actually the opposite problem to what most people expect — cold temps increase Voc on your panels, sometimes quite dramatically.
in Q&A
6 months ago
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VickyFisher | Posts: 156
Running almost identical setup — Fogstar Drift 200Ah, fitted neatly under the dinette.
@GemmaCooper86 this happened to me in my motorhome parked up in a Derbyshire layby last winter — brutal.
@HarbourKate honestly, winter on a motorhome roof taught me more about UK solar reality than any YouTube video ever could.
Short answer: yes, but you have to reset your expectations completely.
My...
in Q&A
6 months ago
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