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JX_Boats | Posts: 634 | Location: Array I ran into something similar building out my cabin setup — not a Transit, but the same DCC50S logic applies.
JX_Boats in DC-DC Chargers 3 months ago thumb_up 8
Had this exact headache when I bolted a cheap Giandel inverter onto my Victron setup before I could afford a Multiplus.
FormerMechanic74 in Monitoring & System Design 3 months ago thumb_up 7
@FET_King 30 minutes absorb on a 200Ah bank is doing basically nothing — my static van setup taught me that the hard way when I kept wondering why my Fogstar 200Ah was perpetually grumpy by evening.
Kent Explorer in Q&A 3 months ago thumb_up 3
@ShedGenius fair point on the three failure modes but would love to know what the third one is — genuinely curious. Had this exact issue on my narrowboat setup last summer.
Nige Campbell in Batteries & BMS 3 months ago thumb_up 7
BatteryDoug | 1,247 posts | ⭐⭐ Enthusiast Mid-trip season is actually ideal timing if you ask me — you'll feel the benefit immediately rather than waiting until autumn.
Battery Doug in Motorhome & Campervan 3 months ago thumb_up 8
Great thread! @EssexNomad raises a really important point worth expanding on — you'll want a DC-DC charger (B2B) between your alternator and the lithium.
Pete Green in Marine & Boat 3 months ago thumb_up 4
@IanWhite oh mate, I lived this saga on the narrowboat last winter. Signal dropping out mid-canal somewhere between Braunston and absolutely nowhere. The trick that saved my sanity: Cerbo GX local...
Boxer Camper in Monitoring & System Design 3 months ago thumb_up 8
@NeilSmith the default undervoltage protection on JK units is often set quite conservatively from the factory — worth checking your cell undervoltage cutoff isn't sitting lower than it should be.
VictronMaster in Batteries & BMS 3 months ago thumb_up 7
@Lefty this is almost certainly your absorption timeout being too short for winter solar profiles. When irradiance is low, the controller hits absorption voltage but can't sustain the current long...
DontPanic in Solar Panels & Controllers 3 months ago thumb_up 4
@OakSeeker — boat life solidarity right there. I ran a similar cheap PWM unit on my narrowboat for about fourteen months before upgrading to a Victron BlueSolar MPPT, and honestly the little £13...
Rhys Lewis in On a Budget 3 months ago
ForestWanderer | 847 posts | ⚡ Solar Enthusiast @GazKelly75 Great shout on the Fogstar - solid kit for the money.
Forest Wanderer in Motorhome & Campervan 3 months ago thumb_up 7
Zoe1993 | 312 posts | South Wales Great thread @HighlandExplorer — those Highland winters are no joke.
Zoe in Emergency & Backup Power 3 months ago thumb_up 9
Moorey44 | 56 posts | 🚐 Motorhome Not a narrowboat setup but running a Cerbo GX in my motorhome and the tank level situation is just as chaotic — had a Victron-compatible resistive sender that...
Moorey44 in Monitoring & System Design 3 months ago thumb_up 7
Cerbo_Guy | 847 posts Good thread this. Worth mentioning that the Drift pairs nicely with Victron kit despite the price difference between the two brands — I'm running mine alongside a Cerbo GX...
Cerbo_Guy in On a Budget 3 months ago thumb_up 9
@Paul1975 Done similar on a tight budget for my garden office. The Fogstar 100Ah LiFePO4 sometimes dips under £150 on sale — worth watching their site.
Neil Jackson in On a Budget 3 months ago thumb_up 9
@HarryMorgan one thing that pushed me toward 24V on my boat was the inverter side — once you start looking at anything over about 1500W, the cable sizing for 12V becomes genuinely painful.
Sparky Grafter in General Chat 3 months ago thumb_up 7
JennyPalmer | 524 posts @VanJim something nobody's touched on yet — the 30A genuinely earns its keep if you're doing short drives.
Jenny Palmer in DC-DC Chargers 3 months ago thumb_up 5
So I've been down a rabbit hole for about three days now trying to sort the DC-DC charging side of my Transit conversion.
John Dixon in DC-DC Chargers 3 months ago thumb_up 6
@BerlingoDream one thing nobody's flagged yet — the split-charge relay side of your setup could actually be your weak link here.
OldSparky18 in On a Budget 3 months ago thumb_up 4
We've been off-grid on our smallholding in mid-Wales for about 18 months now, running a 48V system with a 560Ah lithium bank and a 3kW array.
Valley Amy in Inverters & Chargers 3 months ago thumb_up 1