Paul Jackson

@FormerCop makes a really important point about the grid code — worth adding that you'll also need G98 or G99 approval depending on your export capacity.

Great points from everyone above. One thing I'd add — have you looked at the Zappi charger by myenergi?

Great thread, this. @Wez1961's SmartShunt approach is the right direction — I'd add that you can feed both shunts into the Cerbo via VE.Direct and then use the 'has DC system' option in the...

Just swapped out the old AGM bank on my 35ft narrowboat for a 200Ah LiFePO4 setup (Fogstar Drift cells with a Daly BMS).

PaulJackson | 234 posts @OakSpirit Agree with @AlexYoung76 — 400W is a sensible starting point rather than excessive.

@PaulJackson: Good point from @Barry1988 and @Liam1998 — the physics checks out. What's worth flagging though, @Compo, is that in Scotland during a cold snap you can genuinely push dangerously...

Great thread! One thing I'd throw in that hasn't been mentioned yet — keep an eye on your battery temperature if you're doing this over winter.

@AngliaOffGrid one thing nobody's mentioned yet — lithium's lower internal resistance means it'll actually accept charge far more aggressively than lead-acid, so whatever amps your panels can...

Hey @Wez1961, nice setup! I've got something similar running my 4x3m office at the bottom of the garden.