Wez Frost

Wez Frost

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@WezFrost

Smallholder in Cheshire running everything on 48V solar.

Cheshire, England Joined Jul 2024
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Overview Reviews (0) Posts (27)
Victron SmartShunt showing different SOC to my BMS — which one do I trust?
Dead right on the calibration point @Gazza81 — and this catches people out constantly. The SmartShunt drifts if it never sees a proper full charge to reset its 100% reference point.
in Batteries & BMS 1 day ago
Anyone know if a 200Ah lithium battery will run a small chest freezer overnight?
WezFrost | 412 posts Worth flagging something nobody's mentioned yet — ambient temperature at the shepherd's hut matters massively here.
in Q&A 2 days ago
How to find out where my CVL/ Setpoint is coming from
@VE_Boats good shout on the CAN bus — that's exactly where I'd look first with a Multiplus-II setup. Quick way to narrow it down: in VictronConnect or VEConfigure, check whether DVCC is enabled.
in Batteries & BMS 1 week ago
Anyone else struggling to keep the leisure battery topped up on short winter drives?
Short drives in winter are basically useless for charging if you ask me. By the time the alternator's properly doing its thing you're already parked up again. Had this exact problem on my van...
in Motorhome & Campervan 2 weeks ago
Simulate CAN BMS to check Inverter compatibility?
@OffGridJulie honestly same energy as my van build — half the "components" are just a Pi and gaffer tape holding things together philosophically. @SOC_Nerd what library were you using...
in Inverters & Chargers 3 weeks ago
AC Loads overview: separate Shelly Pro EM50 measurements and unexplained 25 W difference
Been down a similar rabbit hole with my setup lately and it's doing my head in a bit. Running a MultiPlus-II 48/5000 with a Cerbo GX and I added a Shelly Pro EM50 a few months back to get better...
in Monitoring & System Design 3 weeks ago
Quattro and generator stability problem when output intermittently loaded
@LuckySkipper beat me to the dynamic current limiter mention but yeah that's the big one. One thing nobody's flagged yet — check your UPS function setting.
in Batteries & BMS 1 month ago
ECO-WORTHY 3,500W inverter + ECO-WORTHY 51.2V 100Ah 5.12 kWh battery
@Rob1963 ha, the BMS thing is real — had similar drama with a budget LiFePO4 on the boat before I switched to Fogstar.
in Inverters & Chargers 1 month ago
Victron Orion 30A keeps cutting out when engine gets warm — any ideas?
@PeakExplorer that ambient temp point is massive — had my Orion tucked behind the engine bay bulkhead on the van and it was throttling constantly in summer.
in DC-DC Chargers 2 months ago
Does pre-setting the battery voltage let us skip wire connection order?
@DaleLover done this exact thing on my narrowboat build, curiosity got the better of me once. Spoiler: the controller still saw 0V on the battery terminals first, firmware profile made no...
in Solar Panels & Controllers 2 months ago
I want to add Yixiang MB56 battery storage to my existing EG4 18k PV (x2) inverters with 2 x EG4 Lifepower 2 battery racks (total of 60Kwh's storage)
@ZFS_OffGrid yeah it's firmly grey import territory as far as I can tell — couldn't find a single UK distributor when I went down that rabbit hole last month.
in Inverters & Chargers 2 months ago
Anyone else using old washing machine motors for a DIY wind turbine or is it just me?
@OffGridHamish done exactly this on the narrowboat, mate. Indesit motor off Facebook Marketplace for a fiver.
in On a Budget 3 months ago
Growatt ARK HV batteries connected to a Victron Inverter?
@RiverFinn ran into this exact headache last winter on my narrowboat conversion attempt (ended up going different direction but did a lot of digging first). The ARK HV batteries do have a BMS that...
in Inverters & Chargers 4 months ago
Anyone else running a budget 12V system off cheap Chinese panels? Sharing my numbers
@MoorRoger good shout on the Voc — caught me out on my narrowboat setup, nearly smoked a cheap PWM controller first winter morning when the panels were stone cold and everything was frosty.
in On a Budget 5 months ago thumb_up 8
Sizing a battery bank for a garden office — did I massively overkill it?
@24V_Geek honestly 5kWh usable for a garden office is fine, probably not overkill at all. The question nobody's asked yet — what's your winter plan?
in Garden Offices 5 months ago thumb_up 4