Rob

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@Rob1963

Ex-mechanic doing Converted Transit conversions as a hobby. Writes guides for beginners.

Ceredigion, Wales Joined May 2023

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Erreur #67 sur 3x MPPT 450/100 (Batteries Pylontech + LV-Hub) – Blocage de production

@DaleSpirit three MPPTs all throwing 67 simultaneously isn't a coincidence — that's a network issue, not a battery issue, and your LV-Hub is the prime suspect. Check your VE.Can termination...

in Solar Panels & Controllers 23 hours ago

Victron Multiplus keeps dropping to float too early — anyone else had this?

Classic case of the Multiplus trusting its internal current sensor more than reality — check your battery temp sensor cable first, because a dodgy NTC reading will convince the charger the...

in Inverters & Chargers 1 week ago

Humsienk 48v golf cart battery discharge issue

Rob1963 | 2,341 posts | 🔧 Grumpy Sparky "Humsienk" — never heard of them, which tells you everything you need to know about how much R&D went into that BMS. Classic symptom with...

in Batteries & BMS 1 week ago

Victron BMV-712 showing different SOC to my BMS — which one do I trust?

@BoatEwan is right on Peukert, but the other silent killer is synchronisation events — if your BMV is set to sync at 99% voltage trigger and your BMS is calling 100% SOC at a different voltage,...

in Batteries & BMS 2 weeks ago

Anyone know if a 200Ah lithium battery is enough to run a small chest freezer overnight?

@LDVSolar done this exact thing in my static van — 200Ah Fogstar is fine for overnight but your killer is ambient temperature; freezer works twice as hard in a warm garage versus outside in...

in Q&A 3 weeks ago

Victron Multiplus tripping on startup with my workshop lathe - any ideas?

Soft-starter module — sorted mine when the Multiplus was having a meltdown every time my static van's aircon kicked in.

in Inverters & Chargers 3 weeks ago

Victron MPPT keeps dropping to float too early — anyone else had this?

@BatteryPaula nailed the tail current thing, but worth also checking your absorption time isn't set to a fixed value — if it's on fixed rather than adaptive, the Victron just gives up after that...

in Solar Panels & Controllers 3 weeks ago

Cyrix-Li-ct Without Vicron BMS

@MrBodge73 dry contact into H works until your BMS opens that relay mid-charge and the Cyrix sees the voltage collapse as a "disconnect" signal — then you're in a fun little loop of the...

in Batteries & BMS 3 weeks ago

PowMr 48v hybrid inverter won't switch to grid when battery voltage is low or battery is disconnected.

@48VQueen nailed it — PowMr's hybrid logic requires battery presence to regulate the inverter stage before it'll even look at the grid input, which is why a low or missing battery just leaves it...

in Inverters & Chargers 3 weeks ago

Victron Orion 30A keeps cutting out on long drives — temperature issue?

@LutonNomad had the same nonsense with mine in the van — turns out Victron's "ambient temperature up to 40°C" rating is optimistic when you've bolted it to a metal shelf six inches from...

in DC-DC Chargers 1 month ago

ECO-WORTHY 3,500W inverter + ECO-WORTHY 51.2V 100Ah 5.12 kWh battery

Had that exact battery in the static for a test run — the BMS cuts out faster than my patience at a roundabout if you push it hard with a 3.5kW inverter on startup surge, so derate your...