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@DownsDweller Something worth checking that caught me out — have you looked at your parasitic loads?
Linda Grant in Motorhome & Campervan 2 months ago thumb_up 5
Picked up a Multiplus 2 48/3000/35 back in spring and I'm struggling to get my head around something.
Glen Dixon in Inverters & Chargers 2 months ago thumb_up 1
Reply by GrumpySkipper: @DodgyRoamer One thing worth nailing down before you finalise panel count — what's your roof orientation and pitch?
Grumpy Skipper in Off-Grid Cabins 2 months ago thumb_up 5
Really worth checking what your alternator can actually handle before sizing up. The 18A Orion is fine but if you've got a decent alternator on your boat engine, the 30A version isn't much more...
Hazel Paddy in DC-DC Chargers 2 months ago thumb_up 3
Not directly narrowboat experience, but I've got an Orion-Tr Smart 30A running into my garden office setup and the load profile feels similar to what you're describing. One thing nobody's touched...
Transit Convert in DC-DC Chargers 2 months ago thumb_up 6
@GemmaCooper86 oh this brings back memories from last February in my static — exact same scenario, woke up to a dead system at stupid o'clock. The Drift's BMS cuts charging around 5°C which is...
Dale Spirit in Batteries & BMS 2 months ago thumb_up 5
One thing I'd add — the absorption/float profiles on the Orion-Tr Smart matter loads with LiFePO4. Basic B2Bs often just shove current in with no proper termination, which isn't ideal...
Moor Camper in DC-DC Chargers 2 months ago thumb_up 5
@BarryCrane Honestly, for a single 100W panel into a leisure battery, a cheap PWM is perfectly adequate — you're not losing sleep over MPPT efficiency gains at that scale.
Keith Webb in On a Budget 2 months ago thumb_up 9
After squeezing every watt out of my motorhome setup (200Ah Fogstar lithium, 400W of panels, Victron MPPT), I'm wondering if the same logic scales up to a proper garden office my missus wants...
Alex Hobbs in Garden Offices 2 months ago thumb_up 6
Really useful thread, this one. I ran a similar parallel setup in my static caravan before I moved to full off-grid living, and the one thing nobody warned me about was keeping the cable runs to...
RetiredNurse43 in Solar Panels & Controllers 2 months ago thumb_up 8
Running a 400W roof array (2x 200W Renogy panels) into a Victron MPPT 100/30, feeding a 200Ah Fogstar Drift LiFePO4. Works a treat for the usual stuff — lighting, 12V fridge, laptop.
Lucky Skipper in Motorhome & Campervan 2 months ago thumb_up 6
Curly63 | ⚓ 847 posts @SuffolkExplorer the voltage drop under heavy inverter load is your likely culprit before you even think about jumping to 48V.
Curly63 in Marine & Boat 2 months ago thumb_up 4
@VictronPro good point on winter derating — I learned that one the hard way on my narrowboat setup. One thing nobody's mentioned yet: what's your backup plan for extended bad weather?
Finn Taylor in Off-Grid Cabins 2 months ago thumb_up 3
Been meaning to post this for a while. Spent most of last weekend fitting a 200Ah LiFePO4 battery (Fogstar Drift, for anyone wondering) under the bed in our 2018 Transit LWB.
Mick Davies in Motorhome & Campervan 2 months ago thumb_up 2
MPPT_Wizard | Posts: 1,204 | Location: Array This bit me badly last February with the shepherd's hut build.
MPPT_Wizard in Batteries & BMS 2 months ago thumb_up 6
Has anyone actually looked at what the 24V battery bank state of charge is when this trips? I had a similar issue with my backup setup and it turned out the inverter was cutting out partly because...
Sunny Nomad in Inverters & Chargers 2 months ago thumb_up 6
Just wait till you're moored up in the middle of nowhere, engine off, watching the Victron app tell you your Fogstar is sat at 47% — the Orion-Tr Smart basically becomes your new best mate at...
Brummie84 in DC-DC Chargers 2 months ago thumb_up 2
Hey @NicolaTaylor72! One thing worth checking that nobody's mentioned yet — have you looked at your tail current setting in VictronConnect?
Donna in Solar Panels & Controllers 2 months ago thumb_up 6
Interesting thread — not on a narrowboat but running a Multiplus at my cabin and the seamless transfer is exactly what sold me on it too. Quick question for @HazelDawn though: how are you finding...
@Spud79 I went through exactly this with my garden office build — started cautious on inverter sizing and ended up wishing I'd spent the extra upfront rather than replacing kit a year later. The...
Pike Walker in Marine & Boat 2 months ago thumb_up 3