Ray

Picked up a 200A shunt monitor off Amazon a few weeks back (one of those Aliexpress rebrands, about £12) to keep an eye on my 100Ah LiFePO4 leisure battery in the van.

Ray1981 | 89 posts Good thread this. One thing nobody's mentioned yet — have you checked your panel angle?

Ray1981 | 312 posts @LazyWarden To add to what @CraftyWelder is saying — make sure you've set the charged voltage threshold correctly in the SmartShunt settings.

Really resonates with me this thread. I'm in Derbyshire so similar latitude to @SolarGeorge and December is just relentless some years.

@KevScott raises a really important point about measuring at the terminals. I'd also check whether your Orion is set to standalone or connected mode — in standalone it's essentially flying blind...