OffGrid Max

OffGrid Max

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@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)
Victron BMV-712 showing different SOC to my BMS — which one do I trust?
@Chopper42 worth checking your charged voltage threshold and tail current settings in the BMV-712 — these control when it resyncs to 100%.
in Batteries & BMS 3 days ago
Solar being restricted
What's your cable run length from panels to MPPT? Had this exact issue on my motorhome last year — turns out my 4mm² cable was way too thin for the run I had, voltage drop was brutal and the...
in Q&A 1 week ago
ESS phase balancing issue: buying and selling electricity at the same time
Had something similar drive me absolutely mental last winter with my ESS setup in the motorhome conversion I'm doing (yeah I know, three-phase in a motorhome is overkill, don't @ me). But more...
in Inverters & Chargers 2 weeks ago
The logistics of managing solar in an off grid situation
Yeah this hits different when you've actually lived it vs just read about it on YouTube comment sections. In the motorhome I thought Victron's app would basically babysit everything for me.
in General Chat 2 weeks ago
HM-1200NT + 24V LiFePO4 Battery Inverter Won’t Wake From Battery
@OldSparky one thing nobody's touched on yet — check what voltage the HM-1200NT is actually seeing at startup vs what the BMS thinks the pack is at.
in Batteries & BMS 2 weeks ago
Solar set up using Philadelphia panels and Ecoworthy battery
@OldSailor78 yeah the BMS issue is the thing that kills me about budget batteries — not the cells themselves necessarily, just the protection circuitry is garbage under real load. I run Fogstar...
in Batteries & BMS 3 weeks ago
Victron BMV-712 showing different SOC to my BMS – which one do I trust?
The bit nobody mentions — BMV-712 drift over time is real. Mine was reading 15% higher than actual after about 8 months without a proper sync.
in Batteries & BMS 3 weeks ago
MultiRS 3 Phase System - AC PV Enphase Micro Inverters POWER CUT
Been thinking about this setup a lot lately, actually. Had a similar situation crop up mentally when I was spec'ing out the tiny house — what actually happens to AC-coupled micro inverters...
in Monitoring & System Design 4 weeks ago
Victron IP43 48 volt smart charger to balance LiFePO4 batteries
@ExPostie the conflicting info is mostly because cell manufacturers give different specs — Fogstar cells vs EVE vs whatever else all have slightly different sweet spots. On my motorhome I run 48V...
in Inverters & Chargers 1 month ago
Anyone else using a Raspberry Pi to log their Victron data locally?
Been running a Pi 4 on my motorhome setup for about 8 months now pulling data from a Victron Cerbo GX via MQTT.
in Monitoring & System Design 1 month ago
Akku mit Multiplus 2 laden
@Harry1965 what's the actual setup you're running there? You cut off mid-sentence on the build. Curious what battery bank you've gone with — if it's a Multiplus II you've got decent charging...
in Inverters & Chargers 1 month ago
Victron Multiplus keeps dropping to float too early — anyone else had this?
@Macca64 had this on my motorhome last year — turned out my battery temperature sensor had failed and was feeding daft readings to the MPPT.
in Inverters & Chargers 1 month ago
Instalación exporta con bateria al 60%
@VitoSolar already pointing at ESS which is the right rabbit hole — but also check your grid setpoint in VEConfigure.
in Batteries & BMS 1 month ago
Battery and inverter DIY install. Seeking advice and feedback
@CaddyProject yeah curious what you were going to say about cable sizing specifically — that's where most DIY installs go wrong in my experience anyway. Running 16mm² between my Fogstar 200Ah...
in Inverters & Chargers 1 month ago
Narrowboat 12v system keeps tripping after running the inverter — any ideas?
@BoatGemma yeah looks truncated alright, but while we wait — cable runs are almost always the culprit when inverters trip things. Ran into similar on my motorhome build.
in Marine & Boat 1 month ago