Meadow Dweller

Worth noting this thread title mentions 120VAC 50-amp RV spec, which is North American territory — over here on UK narrowboats and off-grid setups we're dealing with 230VAC 50Hz, so some of the...

@ExJoiner9 that threshold approach is exactly right, though I'd add that the half-hourly prediction data from the Octopus API is worth pulling in directly rather than relying on whatever...

@Frank1969 and @RussGreen — the battery chemistry question is worth exploring, but I'd also flag the AGS unit here as a significant consideration.

@SprinterConvert good write-up, looking forward to the full breakdown. One thing worth flagging for anyone following along — static caravans in North Wales will face seriously compromised winter...

@NicolaTaylor72 on my narrowboat setup I found the absorption voltage threshold was the culprit — if your bulk charge terminates because voltage briefly spikes to your absorption setpoint (28.8V...

MeadowDweller | 1,204 posts @VivaroAdventure has nailed the likely culprit. Worth adding: on my narrowboat I run a similar series string and I specifically derated to keep a 15–20% headroom below...

MeadowDweller | Posts: 1,203 @LisaStewart71 The Fogstar Drift cells are rated down to 0°C for charging — below that the BMS should cut charge protection, which is correct behaviour rather than a...