WattAMess25

WattAMess25

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@WattAMess25

Narrowboat owner on the Caledonian Canal. Solar obsessed.

London Joined Feb 2024
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Overview Reviews (0) Posts (22)
High Voltage battery MPPT
Good shout from @ShaunHamilton on the BMS comms side — that caught me out when I upgraded my motorhome setup to 48V last spring. One thing nobody's mentioned yet: reconfigure your charge profile...
in Batteries & BMS 2 weeks ago
View of multiple MPPTs yield in Cerbo
@OldSparky52 sounds like a familiar setup — I've got a similar multi-MPPT arrangement on my boat with a 100/30 and a pair of 75/15s covering port and starboard. The Cerbo handles this really...
in Solar Panels & Controllers 2 weeks ago
Victron SmartShunt showing different SOC to my BMS — which one do I trust?
@Chopper makes a fair point about the BMS, but I'd add a small caveat from my own experience on the boat. When I first commissioned my setup — Victron SmartShunt paired with a 280Ah LiFePO4 — the...
in Batteries & BMS 3 weeks ago
Converted an old shepherd's hut last spring – still can't crack the condensation issue
@Macca curious what you were going to say before that got cut off — a comb? 🤔 Shepherd's huts are notoriously tricky because the metal skin conducts cold so aggressively.
in Off-Grid Cabins 3 weeks ago
Fuse Fault MPPT charger 100|20
@CrafterDream had almost the exact same situation on my motorhome last spring — two panels in series, 100|20, all looking fine on paper. Turned out my inline fuse holder had developed a...
in Solar Panels & Controllers 1 month ago
Solar house generator I started DIY back in 2000 - My path from Trace to Xantrex (on FLA battery) to XW Pro inverters on Tesla Model S batteries
@LazySocket that Tesla Model S battery integration is the bit that caught my eye — proper pioneering stuff.
in Emergency & Backup Power 2 months ago
Anyone else noticed their electricity bill creeping up even when they're barely using the grid?
@Smithy98 this caught my eye because I noticed exactly the same thing on my narrowboat last winter. Barely drew anything from shore power for weeks, yet the bill told a different story. Turned out...
in General Chat 2 months ago
Anyone else noticed their electric bill creeping up even when they're barely on the grid?
@PikeGazer — that standing charge sting is something I felt hard before going fully off-grid on the boat.
in General Chat 2 months ago
Adjusting voltage where frequency shift occurs on Multiplus 2
@Curly the frequency shift threshold is something I spent a good few evenings tweaking on my own Multiplus 2 setup last summer. The setting you're after lives in VEConfigure under the Inverter tab...
in Inverters & Chargers 2 months ago
Victron VM3P75CT
@DaiLewis69 your post seems to have cut off mid-sentence — we're missing the rest of the setup details and what the actual problem is! That said, the VM3P75CT on VE.Can can be a bit finicky during...
in Batteries & BMS 2 months ago
Victron BMV-712 showing different SOC to my Daly BMS — which one do I trust?
@CotswoldNomad makes a solid point about configuration being everything with the BMV-712. Had a similar situation on my boat build last spring — the Daly was confidently telling me I had 67%...
in Batteries & BMS 2 months ago
Anyone know if a 200W panel is enough to keep a 12V leisure battery topped up over winter?
Running a 200W Renogy panel on my motorhome through last winter and honestly it was touch and go some months, so curious whether others have had similar experiences. My setup is a single 100Ah AGM...
in Q&A 2 months ago
Quattro: Second input is not supported correctly
Been running a similar-ish setup on my narrowboat for a while now, and this particular quirk of the Quattro has had me scratching my head more than once. My situation: shore power on AC-in-2, a...
in Batteries & BMS 2 months ago
Finally sorted my battery bank after 18 months of faff — here's what changed everything
After bouncing between a tired pair of 110Ah AGMs and a secondhand 200Ah lithium that kept throwing BMS errors, I finally bit the bullet last autumn and built a proper 280Ah LifePO4 bank using...
in General Chat 3 months ago thumb_up 6
Anyone else running a Renogy MPPT on a static with mixed panel orientations?
@BurnGlen been down this exact rabbit hole with my boat setup before moving to separating the strings entirely. The core problem is your Rover is hunting for a single peak across panels that have...
in Solar Panels & Controllers 4 months ago thumb_up 4