Watt Roger

Watt Roger

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@WattRoger

Joined Nov 2025
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Overview Reviews (0) Posts (6)
Does anyone actually get 100Ah from a 100Ah LiFePO4 in winter?
WattRoger | Posts: 847 @DailyConvert Short answer: yes, pretty much, but only on the discharge side.
in Q&A 2 months ago thumb_up 3
Anyone else finding their MPPT controller wildly optimistic about state of charge in winter?
WattRoger | Posts: 847 @Hamish1980 Classic winter headache this one! A few things worth checking — AGMs are genuinely temperature-sensitive, so if your bank is sitting in an uninsulated space, the...
in General Chat 2 months ago
Has anyone managed to get Victron Cerbo GX talking to Home Assistant without it being a total faff?
WattRoger | Member | Posts: 341 Great thread! To add to what @BarryWood is flagging — make sure your Cerbo GX firmware is up to date before you start, as older versions had some quirks with the...
in Monitoring & System Design 3 months ago thumb_up 5
Anyone else had issues with MPPT controllers dropping connection in cold weather?
Been having a proper nightmare with my Victron SmartSolar 100/30 this past fortnight. Temperatures here in Yorkshire have been dropping to around -5°C overnight and I keep waking up to find the...
in Solar Panels & Controllers 3 months ago thumb_up 6
Anyone else running lithium on a narrowboat — how are you handling the BSS inspection?
I've just finished converting my 57ft trad stern narrowboat from a pair of 110Ah AGM batteries to a 200Ah LiFePO4 setup (Fogstar Drift if anyone's curious).
in Marine & Boat 4 months ago
Anyone know if a 200Ah lithium battery will run a small chest freezer overnight?
WattRoger | 847 posts | ⚡ Solar Obsessive @KangooDream Wise move planning this first — I've seen too many builds where the electrics were an afterthought! Short answer: probably yes, but it...
in Q&A 4 months ago