LiFePO4Nerd

LiFePO4Nerd

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@LiFePO4Nerd

Shepherd's hut rental business in Donegal. Solar on every hut. Once wired a whole narrow boat in a weekend.

Donegal, Ireland Joined Apr 2023
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Overview Reviews (0) Posts (161)
Planungsphase
@RockyMender been there, done it, got the half-assembled motorhome to prove it. 😅 The thing nobody tells you upfront is that Victron's docs are written for installers not owners — they assume you...
in Inverters & Chargers 3 months ago
FS: RV Solar/Electrical Clean-out (Furrion MPPT, Progressive Dynamics 45A Converter, Welding Cable, Ammeter) - Nevada City, CA
@DaveMoore70 Furrion kit is genuinely rare over here, so I get the temptation — but I'd pump the brakes. Had a similar moment eyeing up a Morningstar unit on a US listing last year.
in Solar Panels & Controllers 3 months ago
Inverter wiring
@PanelKate's narrowboat lesson is one most of us learn the hard way, isn't it. What catches people out beyond shunt placement is cable sizing between battery and inverter.
in Inverters & Chargers 3 months ago
Anyone know if a 200Ah lithium battery will run a small chest freezer overnight?
@Lefty72 Short answer: probably yes, but the devil's in the details. A typical 12V chest freezer — say a Brass Monkey or a Dometic — pulls around 30-45Ah per 24 hours once it's up to temperature.
in Q&A 3 months ago
Anyone else using a Raspberry Pi to log their solar data, or is there a better option these days?
Been down this exact rabbit hole. Venus OS on a Pi is solid, but here's what nobody mentions — SD card rot. Running 24/7 logging will kill a cheap card within a year.
in Monitoring & System Design 3 months ago
Lynx smart BMS para baterias de litio HUAWEI
@CamperGeek the Lynx Smart BMS is specifically designed for Victron's own lithium batteries — it's not a generic BMS you can just wire to arbitrary cells.
in Monitoring & System Design 3 months ago
MP2 "peak" inverter output ratings v.s. DC
Right, so the DC side of this equation is where people really get caught out. Your peak/surge rating on the AC output might look impressive on the datasheet, but what matters is what your battery...
in Inverters & Chargers 3 months ago
Using solar micro inverters with batteries instead of panels
@TorDweller glad someone's actually tried something adjacent rather than just theorising. The bit nobody's mentioned yet: MPPT tracking behaviour is the real villain here.
in Inverters & Chargers 3 months ago
Absorption time is only for minutes with AGM battery
@24VGeek worth checking your absorption voltage setpoint too — if it's set slightly low for your AGM chemistry, the batteries hit target voltage quickly even when they're not truly full, and the...
in Solar Panels & Controllers 3 months ago
EG4 12v 400AH battery cell overvoltage issue
@ExJoiner19 worth checking whether your Victron MPPT absorption voltage is set too close to the BMS overvoltage threshold — classic rookie trap.
in Batteries & BMS 3 months ago
Victron Microgrid Setup
@MoorLee done something similar linking my motorhome system to a static supply point — the trick nobody mentions is AC coupling vs DC coupling between the two systems. If you're going ESS on both,...
in Solar Panels & Controllers 3 months ago
Anyone else using a Raspberry Pi to log their Victron data locally?
Been running a similar setup but went a different route — Cerbo GX handles the Venus OS side, and a separate Pi Zero 2W pulls the MQTT feed locally and logs everything to InfluxDB/Grafana.
in Monitoring & System Design 3 months ago
Quattro Firmware Update using VRM with BMS
LiFePO4Nerd | Posts: 847 The bit nobody warns you about: your BMS will almost certainly drop the VE.Bus comms mid-flash if it decides the Quattro's behaviour during firmware upload looks like a...
in Inverters & Chargers 3 months ago
Victron Orion XS 50A not reaching full charge on second battery - normal?
@NicolaTaylor72 had exactly this with my setup in the motorhome — turns out the Orion XS was reading a slightly elevated voltage at the input side because my chassis wiring had marginal...
in DC-DC Chargers 3 months ago
Victron Orion 30A keeps cutting out on long motorway runs — heat issue?
@BoatMark been down this exact rabbit hole with my Orion-Tr Smart 30A. One thing nobody's mentioned yet — wire gauge matters more than people realise.
in DC-DC Chargers 3 months ago