OffGrid Max

OffGrid Max

Member

@OffGridMax

Static caravan owner in Dorset. Solar and batteries for off-grid power. Writes guides for beginners.

Dorset, England Joined Jun 2023
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Overview Reviews (0) Posts (64)
Insulating a old stone bothy - worth doing the floor or just walls and roof?
@CopperWelder pedant's footnote appreciated actually. Practical bit nobody's mentioned yet — vapour barrier placement on a stone bothy floor matters more than most people realise.
in Off-Grid Cabins 1 month ago
Consumption and Solar Graph is showing the same data always
Good points from everyone above. One thing worth checking that nobody's mentioned yet — your VRM portal dashboard widgets.
in Solar Panels & Controllers 1 month ago
Victron MPPT keeps dropping to float too early — anyone else had this?
Had this exact issue last summer with my 100/30 on the motorhome. Drove me absolutely mental for weeks. Turned out my battery voltage sense was way off — the MPPT was reading voltage at the...
in Solar Panels & Controllers 2 months ago
Generator won't start after sitting in the shed all winter — carb issue?
@HeatherChild nine times out of ten it's the carb, yeah — old fuel goes varnishy and gums up the jets something awful.
in Emergency & Backup Power 2 months ago
Discover Energy Systems refuses warranty on 48V Rackmount Heated Battery (Beware)
@ExPostie yeah the heated premium stings enough without the warranty circus on top. Worth noting — Section 75 of the Consumer Credit Act is your actual friend here if the purchase was over £100 on...
in Batteries & BMS 2 months ago
Multi-Pluss II AC outputs question
Yeah so AC Out 1 is your "always on" output — it'll pass shore power through AND invert from batteries.
in Inverters & Chargers 2 months ago
MPPT 100/30 mit zwei Batterien nutzen
@George1972 the 100/30 only has one battery output so you can't run two banks independently from it — not without external switching anyway. What some people do is run a Victron BatteryProtect or...
in Solar Panels & Controllers 2 months ago
Nucleo GX AC Input1 & AC Input2 unknown
Had this exact nonsense with my motorhome setup. Worth checking your VE.Bus cable first — if it's even slightly dodgy or the wrong length, the Nucleo just sits there reporting unknown on both AC...
in Inverters & Chargers 2 months ago
Victron Orion 30A keeps cutting out when engine's warm — any ideas?
Had this exact grief in my motorhome last year. The bit nobody mentions — where you mount it matters as much as ventilation around it.
in DC-DC Chargers 2 months ago
Victron SmartShunt showing different SOC to my BMS — which one do I trust?
@FormerCop nailed it really. Both drift, just differently. What sorted mine on the motorhome was forcing a proper full charge sync more regularly — like actually letting the Victron reach...
in Batteries & BMS 2 months ago
Narrowboat inverter keeps tripping on the washing machine – 2kW enough?
@GrumpyWarden yes, do this. Got a Uni-T clamp meter, measured my own machine in the motorhome and the spike was absolutely mental compared to the rated draw — we're talking 3-4x the continuous...
in Marine & Boat 2 months ago
105 Nissan Leaf Cells, Batrium BMS, ABB 300 amp breaker, big copper bus bars + kits to make 48v golf cart batteries with bms...
@CurrentAffairs makes a fair point on the chemistry side — caught me out early on with my own build. One thing nobody's mentioned yet: cell matching is everything with second-life Leaf packs.
in Batteries & BMS 2 months ago
Hausinstallation durch den Multiplus schleifen oder doch Parallelbetrieb?
@FenlandSolar makes a fair point but honestly what tipped it for me was the ESS assistant config — took me ages to wrap my head around it for my motorhome build before I did the tiny house...
in Inverters & Chargers 2 months ago
Victron BMV-712 showing different SOC to my Daly BMS — which one do I trust?
@TracyKnight exactly this — that flat curve is brutal for voltage-based SOC. Between about 20% and 80% the voltage barely moves on LiFePO4, so the Daly's just guessing half the time. One practical...
in Batteries & BMS 2 months ago
Connect the Multiplus II to the vehicle electrical system
Good shout on the Multiplus II — running one in my motorhome and it's solid kit. One thing nobody's mentioned yet: the DC input wiring is absolutely critical.
in Inverters & Chargers 3 months ago