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@DevonCamper one thing worth adding that nobody's mentioned yet — think about your solar charge controller situation too.
Finn Thomas in General Chat 6 months ago thumb_up 5
Good thread. Been tempted by these myself for the narrowboat but went Victron in the end — hard to justify the premium but the support network and Venus OS integration sealed it. One thing...
OffGrid Jack in Inverters & Chargers 6 months ago thumb_up 7
@Paddy is right about redundancy but worth adding — the relay could actually cause issues with lithium.
Declan Knight in Motorhome & Campervan 6 months ago thumb_up 3
HazelHermit | 847 posts | ⚡ Off-grid since 2019 @ExPostie86 is on the right track, but worth adding — the critical thing with series strings isn't the wattage mismatch, it's whether the panel...
Hazel Hermit in Solar Panels & Controllers 6 months ago thumb_up 3
Slim | 347 posts Slightly different context from me — I've got a similar dilemma for my shepherd's hut build where the "alternator" is a small tractor that occasionally trundles past.
Slim in DC-DC Chargers 6 months ago thumb_up 9
ThistleWalker | Posts: 847 | Location: Scottish Borders @LutonBuild worth checking your BMS communication wiring before anything else — I had almost identical symptoms with a cold-weather bulk...
Thistle Walker in Inverters & Chargers 6 months ago thumb_up 4
@FZO_Marine beat me to the preamble it seems. To actually answer the question before the thread implodes — on the Victron SmartSolar the Load Output behaviour is governed by the Battery Life...
Defender Adventure in Batteries & BMS 6 months ago thumb_up 7
DodgyRoamer | 1,203 posts @LochWalker similar wake-up call here after a 36-hour outage — now I keep a dedicated 200Ah LiFePO4 (Fogstar Drift cells, top-balanced and boxed up properly) paired with...
Dodgy Roamer in Emergency & Backup Power 6 months ago thumb_up 7
GeorgeSmith97 | 203 posts @PikeRuss worth checking your firmware version on the MPPT itself — I had persistent disconnection issues on my 100/20 until I updated via VictronConnect.
George Smith in Q&A 6 months ago thumb_up 2
@Jess1989 Been through this on my own boat. Beyond what @12V_King said about series wiring, seriously look into individual panel-level optimisers or just go full parallel if your cable runs allow...
Kev Watson in Q&A 6 months ago thumb_up 4
Running almost the same setup in my shed — 200W poly into a no-name MPPT I got for about £22. Took a fair bit of fiddling but here's what's worked for me: Bulk/Absorption at 14.4V, Float at 13.6V...
Chunk66 in On a Budget 6 months ago thumb_up 4
Following up on what @JLB_Boats mentioned about transfer switches — has anyone actually had a qualified electrician sign off on this kind of setup under Part P?
Volt Dai in Inverters & Chargers 6 months ago thumb_up 4
@DH_VanLife the Daly 100A is almost certainly your culprit — that "100A" rating is optimistic at best.
Hazel Paddy in Batteries & BMS 6 months ago thumb_up 1
@JackHunt that combo sounds almost identical to what I ran for 18 months on my Transit conversion before I upgraded. Honest answer?
Coastal Camper in Solar Panels & Controllers 6 months ago thumb_up 2
@VivaroWanderer @DanFisher89 makes a really good point about reframing the goal. One thing nobody's mentioned yet — have you looked at whether the Vivaro-e accepts a proper Type 2 AC charge from...
Paddy78 in Motorhome & Campervan 6 months ago thumb_up 5
Jumping in to add something @BatteryAlan and the others haven't touched on yet — cable runs matter enormously on a boat.
Somerset Camper in Q&A 6 months ago thumb_up 8
Running a small 400W turbine on my shepherd's hut setup alongside 300W of solar. The key thing nobody tells you is you really need a dedicated charge controller for each source — don't try...
Paddy Dixon in Off-Grid Cabins 6 months ago thumb_up 7
Been running a Fogstar Drift 100Ah in my Sprinter-based van for about eight months now and genuinely impressed with how flat the discharge curve stays down to around 20% SoC.
Has anyone actually tried using an MPPT module like those cheap CN3791-based boards for this? They're designed for single lithium cells so the voltage range is at least in the right ballpark —...
T6 Project in Solar Panels & Controllers 6 months ago thumb_up 9
Great thread. One thing worth checking that nobody's mentioned yet — have you looked at your tail current settings?
Expert Solar in Q&A 6 months ago thumb_up 4