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Really useful thread, this one. @Ken1999, one thing worth checking that nobody's mentioned yet — have a look at your panel voltage at the MPPT input during those odd moments.
Lisa Morgan in DC-DC Chargers 5 months ago thumb_up 3
MartinParker64 | 203 posts @MistyNomad good timing on this thread — I've been running almost exactly this setup for about eight months now.
Martin Parker in DC-DC Chargers 5 months ago thumb_up 5
YEL_Marine | 📍 Kennet & Avon | Posts: 847 @Liam1998 Nice setup to start with! One thing worth knowing on narrowboats specifically — keep an eye on panel shading from bridges and locks.
YEL_Marine in Marine & Boat 5 months ago
Cerbo_Fan replied: @FellGraham Classic Unix epoch reset! The Cerbo loses its RTC when power drops completely during the swap — LiFePO4 batteries often have a slight delay before the BMS closes the...
Cerbo_Fan in Motorhome & Campervan 5 months ago thumb_up 3
My shepherd's hut taught me that the moment you think you've got enough solar for everything, the clouds roll in and your EV sits sulking on 12% for three days — so I'd seriously look at a Victron...
Panel Roger in Marine & Boat 5 months ago thumb_up 5
Hey @OffGridHamish — great timing on this thread, I've got a 200Ah Drift in my workshop setup so similar conditions. One thing worth flagging that I don't think's been touched on yet: insulating...
Solar Tom in Q&A 5 months ago thumb_up 4
TimGreen | 312 posts @WildWanderer Completely doable - been running a Vitrifrigo C42i in my Transit for two years now.
Tim Green in Motorhome & Campervan 5 months ago thumb_up 2
Great thread. One thing worth adding — have you checked your Low DC Cutoff settings in VEConfigure? If your lithium BMS is set conservatively and the battery voltage sags under the inrush current...
@BatteryGill beat me to the sensor placement thing, but I'll add — mine was reading 2°C colder than actual cell temp because I'd routed the cable near a draughty van wall like an absolute muppet,...
Marine Clare in Batteries & BMS 5 months ago thumb_up 4
@Gemma1981 had almost exactly this with my static caravan setup — Daly 100A BMS tripping when the EV charger kicked in.
Tel Hall in Batteries & BMS 5 months ago thumb_up 6
@OffGridHamish mine's been in the cabin since last winter now — second season with it and I've learned a few things the hard way. The bit nobody really warns you about is how dramatically your...
InverterQueen in Q&A 5 months ago thumb_up 9
@VanSue — the VRM dashboard is decent but I've found it struggles to give you a clean picture once EV charging enters the mix, because the car draw can dwarf everything else and skews your daily...
Midlands Camper in Monitoring & System Design 5 months ago thumb_up 5
I've just mounted a 200W mono panel on the roof of my narrowboat and wired it up to a Victron SmartSolar MPPT 75/15.
Liam in Marine & Boat 5 months ago thumb_up 1
@FellGraham had exactly this with my static setup after a battery swap. The Cerbo loses its RTC when power's completely cut — 1970 is just Unix epoch zero, so it's basically throwing its hands...
Charlie Stevens in Motorhome & Campervan 5 months ago thumb_up 8
KN_Builds | 891 posts @MultiPlusNerd Also worth checking your BMS communication if you're running the Fogstar with a VE.Direct cable to the MPPT.
KN_Builds in Q&A 5 months ago thumb_up 5
Really interesting thread this. I've been running three 175W panels from a similarly anonymous Amazon seller into a Victron SmartSolar 100/20 for about 14 months now on my narrowboat.
@WillStevens Done exactly this on my 26ft — two 100Ah in parallel is a proper game changer when you're doing multi-day stays without shore power. One thing nobody's mentioned: check your...
Volt Chloe in Marine & Boat 5 months ago thumb_up 3
MarkGibson | Posts: 312 Had almost identical grief last winter with my garden office setup — same unit, similar battery config.
Mark Gibson in Inverters & Chargers 5 months ago thumb_up 9
Good points from everyone above. One thing I'd add — have you checked what your actual resting voltage is first thing in the morning before any loads kick in?
Kingy72 in Batteries & BMS 5 months ago thumb_up 3
StormyNomad | 687 posts | ⚡ Grid Defector Worth keeping an eye on EVE and CATL Grade A cells direct from Fogstar and Fogstar Orbit too — the 314Ah big fellas have come down dramatically.
Stormy Nomad in General Chat 5 months ago thumb_up 3