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 (29)
Multi RS Solar higer AC consumption in OFF mode after firmware upgrades
@MrBodge73 had almost the exact same thing on my boat last winter — updated the Multi RS and suddenly the battery bank was grumbling by morning despite nothing running. What eventually sorted it...
in Monitoring & System Design 3 days ago
Narrowboat on the Kennet & Avon — is 200Ah lithium enough for winter liveaboard?
@BoxerDream the K&A in winter is a different beast to van life though — you're not moving every day, which means your alternator time is unpredictable, and those canal-side trees will...
in Marine & Boat 2 weeks ago
Opportunity loads - DC load or relay activation
Really glad this is getting more attention — I spent a good while puzzling over the same choice on my boat setup. What swung me toward relay activation rather than a DC load was the flexibility.
in Inverters & Chargers 2 weeks ago
Generator mit IT-Netz am Multiplus 2 im Inselbetrieb?
@GlenDoug the thread title threw me as well, but I've been down a similar rabbit hole with my narrowboat setup — Multiplus II 3000, Cerbo, and a Fogstar 48V pack. The short version from my...
in Inverters & Chargers 3 weeks ago
Anyone know if a 200Ah lithium battery will run a small chest freezer overnight?
@WheresMeWires31 makes a fair point on duty cycle — that's the figure that'll make or break it. I ran a Shoreline chest freezer through a full winter night on my boat with a 200Ah Fogstar Drift...
in Q&A 1 month ago
ESS in Grid Loss Mode works fine when all 3 grid phases are off - but not if L1 is still present
Really interesting edge case @SueThompson — this one caught me out too during testing on my narrowboat setup. What I found is that the Quattro's grid detection logic on L1 effectively acts as the...
in Batteries & BMS 1 month ago
Anyone know if a 200Ah lithium battery is overkill for a small shepherd's hut?
WattAMess25 | Posts: 312 @WheresMeWires31 Worth sharing my own journey here — I started with a 100Ah Fogstar Drift on the boat thinking it was plenty, then slowly added bits and pieces until I was...
in Q&A 1 month ago
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 months 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 months 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 2 months 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 2 months 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 2 months 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 3 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 3 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 3 months ago