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Hey @ExTrucker32 — to add to what @Paddy and @DeclanKnight57 have said, there's also the alternator to consider.
Lazy Sparky in Motorhome & Campervan 6 months ago thumb_up 4
MPPTGal | 634 posts Had almost identical behaviour in my own shepherd's hut build last winter. What cracked it for me was checking the absorption time setting — mine was far too short and the...
MPPTGal in Inverters & Chargers 6 months ago thumb_up 9
@VoltTom the low-light harvesting difference is exactly why I made the switch on my motorhome build.
Smudge in Marine & Boat 6 months ago thumb_up 3
@PV_Fan I've been doing something very similar down here in Cornwall for about 18 months now. The key thing nobody mentions is state of charge management — I use a Cerbo GX to set a minimum SOC...
Boycie74 | Posts: 312 | Location: Floating somewhere on the Shroppie @KangooAdventure nasty situation that, Middlewich's not ideal for sourcing bits quickly. My belt-and-braces backup is a 20Ah...
ExpertLife | 2,341 posts | 🔋 Off-Grid Veteran Good thread this. One thing worth mentioning that gets overlooked — if you're running the van as your primary backup during a prolonged outage, keep...
Expert Life in Emergency & Backup Power 6 months ago thumb_up 7
Really good shout from @MoorRuss on the voltage drop — and that's actually the crux of why a basic split charge relay is such a poor match for LiFePO4 specifically.
Transit Nomad in Q&A 6 months ago thumb_up 9
After finally getting round to expanding my static caravan setup, I've ended up with a bit of an awkward situation.
Nessa in Solar Panels & Controllers 6 months ago thumb_up 4
@Shunt_Guy bold of you to trust a marine alternator to actually charge something — mine's basically just a decorative spinning accessory bolted to the engine block.
Peak Nomad in Marine & Boat 6 months ago thumb_up 1
Hey @OllieThompson73 — worth mentioning that alongside your absorption voltage, the absorption time and tail current settings matter just as much with LiFePO4.
Nick Mason in Inverters & Chargers 6 months ago thumb_up 1
GlenNicola | 847 posts | ⚡ Solar Enthusiast @Gazza89 The Epever Tracer is actually a decent bit of kit — not "cheap Chinese tat" in the same bracket as some of the no-name stuff...
Glen Nicola in On a Budget 6 months ago thumb_up 8
So I've just finished wiring up my Transit conversion and I'm second-guessing myself a bit. I've got a 200Ah LiFePO4 (Fogstar Drift) connected to two 175W solar panels via a Victron SmartSolar...
Devon Cruiser in Q&A 6 months ago thumb_up 2
CrafterWanderer | 412 posts @Rodney58 What nobody's mentioned yet is that the Daly's coulomb counting resets poorly after partial cycles — it drifts badly without regular full charge...
Crafter Wanderer in General Chat 6 months ago thumb_up 4
Just finished wiring up my off-grid shed setup — 400Ah of lithium, 600W of panels on a Victron SmartSolar 100/30, but I've gone with a Growatt SPF 3000TL inverter rather than a Multiplus because...
Reply by Derek1967: @Foggy95 Running a similar setup here — cheap MPPT off Amazon into a 80W panel I rescued from a shed clearance.
Derek in On a Budget 6 months ago thumb_up 3
@WattRoger had the exact same bother with my 75/15 a couple of winters back. Turned out the Bluetooth module was the culprit rather than the MPPT itself — connection dropping doesn't necessarily...
FormerMechanic74 in Solar Panels & Controllers 6 months ago thumb_up 2
@Turbo the maths is a bit off there — two 12V 9Ah in series gives you 24V 9Ah, not 18Ah. Paralleling a second identical series pair then brings you back to 24V 18Ah total, but SLA you're...
OffGrid Jack in General Chat 6 months ago thumb_up 5
Been having a proper nightmare with my Victron SmartSolar 100/30 this past fortnight. Temperatures here in Yorkshire have been dropping to around -5°C overnight and I keep waking up to find the...
Watt Roger in Solar Panels & Controllers 6 months ago thumb_up 6
SarahFrost | 312 posts @NeilAllen great upgrade choice! One thing worth mentioning that catches people out – make sure you've got the correct fusing right at the battery terminals on both banks.
Sarah Frost in Marine & Boat 6 months ago thumb_up 2
@AmyChapman89 brilliant setup — the MultiPlus 2000 should handle it fine though you'll want to keep an eye on charge rate vs your battery capacity.
Gazza24 in Motorhome & Campervan 6 months ago thumb_up 7