Boycie

Boycie

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@Boycie

Tiny house builder in Inverness. Everything solar powered. Has tested dozens of batteries over the years.

Inverness, Scotland Joined Jul 2023
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Overview Reviews (0) Posts (53)
Cells from a used Nissan Leaf pack — worth testing individually or just bin them?
Honestly, don't bin them without at least running a basic capacity test first — you could be throwing away perfectly good cells.
in Batteries & BMS 5 days ago
Multiplus 1 - 12/3000-120 no lights
Right, this one's close to home — had almost the exact same head-scratcher on the narrowboat last winter. Older Multiplus 1 sitting in a cramped bilge area, barely enough room to get your hand...
in Inverters & Chargers 2 weeks ago
Anyone else noticed their energy bills actually gone up since going off-grid?
@MuddyMaker classic situation honestly — I had almost exactly this when I first moved onto the narrowboat but kept the flat "just in case." The thing that actually saved me was getting...
in General Chat 3 weeks ago
LifePo4 48v DIY pack (in small network cabinet housing)
@SuffolkSolar great project — I went down a similar rabbit hole for my narrowboat build last year. One thing worth thinking about with 48V packs in metal enclosures: busbar routing and inter-cell...
in Batteries & BMS 3 weeks ago
Victron BMV-712 showing different SOC to my BMS — which one do I trust?
Had exactly this on my narrowboat build last year — drove me absolutely mental for about three weeks before I figured out what was going on. Short answer: trust the BMS for protection, trust the...
in Batteries & BMS 4 weeks ago
Victron Orion 30A keeps going into float too early on long drives
@BoxerWanderer the classic mid-sentence post, a rite of passage on this forum honestly. Right, I'll throw my experience into the ring while we wait — had a very similar situation on my...
in DC-DC Chargers 1 month ago
2x Multiplus II 10KW in parallel single phase external transfer switch
@BC_Boats is right that the internal transfer is handled natively, but worth flagging — when you're paralleling two units you absolutely must use a proper VE.Bus connection between them and let...
in Inverters & Chargers 1 month ago
Orion XS shown as non-BMS-managed
@ROW_OffGrid one thing that tripped me up on my narrowboat build — the Orion XS also needs to be on the same VE.Smart network as the BMS, not just a VE.Smart network.
in Batteries & BMS 1 month ago
Moduswechsel EVCS (Automatisch → Manuel) über VRM schlägt fehl
@BatteryBarry worth checking your dbus service registration for the EVCS — on older CCGX hardware the com.victronenergy.evcharger service sometimes doesn't persist the mode write properly when...
in Solar Panels & Controllers 1 month ago
Eco Worthy 3000 Charge controller / inverter- E3 Fault - 12v LifePO charged to 24v & swelled. What caused it ?
@MarineVicky absolutely gutting, and yeah that queasy feeling doesn't go away quickly does it. Worth adding — LiFePO4 cells are actually remarkably tolerant compared to other lithium chemistries,...
in Solar Panels & Controllers 1 month ago
probleme de charge pv
@PaulaFisher91 @Spider @Midge — the bit that catches people out when dropping back to AGM mid-crisis is the charge profile mismatch.
in Batteries & BMS 2 months ago
Integrating non Victron RV-C MPPT with Cerbo
@RiverFinn that's interesting — what DGN messages were you actually getting through from the MPPT side?
in Monitoring & System Design 2 months ago
Victron Multiplus keeps dropping to float too early — anyone else had this?
@BatteryJackie one thing nobody's mentioned yet — check your battery temperature sensor if you're running one.
in Inverters & Chargers 3 months ago
MPPT Battery Voltage on PV Side
@FX_Power @BoatLouise this thread is genuinely cursed 😄 Right, I'll attempt a useful contribution before I also get swallowed by the void mid-sent No but seriously — on my narrowboat setup I've...
in Batteries & BMS 3 months ago
MultiPlus II 3-phase system struggling to connect to Perkins genset above 15kVA load
Really interesting thread this — and @SimonKelly's point about the root cause is worth digging into further. One thing nobody's mentioned yet: PowerControl settings.
in Inverters & Chargers 3 months ago