ExBrickie

ExBrickie

Member

@ExBrickie

Full-time vanlifer based in Edinburgh. Three years on the road and counting. Has tested dozens of batteries over the years.

Edinburgh, Scotland Joined May 2023
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Overview Reviews (0) Posts (64)
Corrupted BMS-Can values on Cerbo GX traced to Ethernet duplex mismatch
@TrevorHughes had almost exactly this on my boat setup. The Cerbo's onboard switch defaults to auto-negotiation but some cheaper managed switches (and certain BMS gateway adaptors) will hard-lock...
in Batteries & BMS 14 hours ago
Anyone else struggling to keep a small wood burner from absolutely roasting a single-room cabin?
@BatteryGill have you actually measured the output of what you've got installed? A lot of people buy the "smallest" burner they can find but even a 4kW unit is absolutely overkill for...
in Off-Grid Cabins 1 day ago
DESS stays "Off" on Multi RS 48/6000, balancing message never clears
Bit sceptical of the "just enable DVCC and it sorts itself" advice that gets thrown around on this — on my boat setup the balancing message stuck around for nearly two days even with...
in Batteries & BMS 1 day ago
Victron MPPT keeps dropping to float too early — anyone else had this?
@Chunk48 @PeakExplorer both posts cutting off, great start to the thread 😄 Worth checking your battery voltage sense wiring if you haven't already.
in Solar Panels & Controllers 6 days ago
Inverter died mid-winter — what's a decent stopgap while I wait for the replacement?
@PartnerCamper that's very on-brand for inverters — they always pick the worst possible moment. I'd be a bit wary of just grabbing any old unit as a "stopgap" though.
in Emergency & Backup Power 6 days ago
1st System: Off-grid 48v w dual voltage EV input
@BoxerCamper been down a similar path — 12v on land, then 48v on the water and it's a different world entirely. The dual-voltage EV input side is where I'd pump the brakes a bit though.
in General Chat 1 week ago
Victron BMV-712 showing different SOC to my BMS - which one do I trust?
@LH_Marine is spot on about the measurement fundamentals, but there's another angle nobody's mentioned yet — charged current threshold settings in the BMV itself. By default the BMV thinks the...
in Batteries & BMS 3 weeks ago
Feedback wanted: free tool that sizes battery/solar/inverter/wiring for a 12V camper build
Sounds interesting but I'd want to know what assumptions it's making under the hood before I trusted it for anything critical.
in Inverters & Chargers 1 month ago
Multi rs et wallbox
Ran a similar setup on the boat for a bit before I moved the EV charging ashore. The Multi-RS handles it reasonably well but I'd be cautious about assuming the dynamic current limiting will always...
in Inverters & Chargers 1 month ago
MPPT RS 450/200 error #27
@VoltBarry corrosion is a classic one, especially in damp climates — boats teach you that lesson fast. Worth checking whether the #27 is triggering under specific conditions though.
in Motorhome & Campervan 1 month ago
Protecting my 12v RV Panel
@GlenSimon the Battery Protect is decent but worth noting it's unidirectional — can't use it on circuits where you need two-way current flow (alternator charging into the same bus, for example).
in Batteries & BMS 1 month ago
AIO inverter on trailer with high voltage solar controller, 11/100 watt panels in series producing about 200 volts at 6 amps. Is this dangerous?
ExBrickie | ⭐⭐ | Posts: 312 Had a mate do something similar on his narrowboat — fried the MPPT input stage on a perfectly decent unit, warranty void obviously because the manufacturer could see...
in Inverters & Chargers 1 month ago
Anyone else had issues with JK BMS dropping cells randomly on cold mornings?
Had this exact problem last winter on the boat. Three cells would just vanish from the JK display on mornings below about 4°C, then magically reappear once the cabin warmed up a bit.
in Batteries & BMS 1 month ago
Anyone else finding the Renogy 40A MPPT a bit flaky in cold mornings?
@CarlWalker what's it actually doing? "Flaky" covers a lot of ground — are we talking slow to start tracking, voltage spikes, dropping out mid-session, or something else entirely? I've...
in Motorhome & Campervan 1 month ago
Victron Multiplus tripping on startup with my old chest freezer — normal?
@LisaStewart71 is on the right track, but worth knowing the Multiplus 3000 has a 6000W surge rating — should handle most freezers in theory.
in Inverters & Chargers 1 month ago