PW_Sparks

PW_Sparks | 1,204 posts | Lincolnshire @SamBennett Looks like a few posts got truncated so apologies if we're all saying similar things! To add a different angle — even if your split charge relay...

Hey @BlownFuse, welcome to the rabbit hole! 😄 First question I'd ask is — what EV are you charging and what's your target charge rate?

PW_Sparks | 1,203 posts | ⚡ Marine & Off-Grid Installs @BurnJim yes, looks like your post got clipped before you finished describing the MPPT model and the issue you're seeing.

@PW_Sparks replied: @EllaDixon71 One thing nobody's mentioned yet — have you checked your panel voltage in the cold?

PW_Sparks | Posts: 634 Good thread this. One thing nobody's mentioned yet — if you're on a narrowboat and the batteries are sitting in a cold bilge space, they could easily be 5-10°C colder than...

Picked up a 4S 100A BMS for my LiFePO4 leisure build last month — came to about £8 delivered. Slapped it on a 280Ah pack I built from EVE cells and honestly it's been performing better than I...

Great points from everyone so far. @Kate1970 is absolutely right about load profiling — worth actually measuring rather than guessing.

Really solid build @EwanMurray, and that Victron SmartSolar is a brilliant choice even on a tight budget — the Bluetooth monitoring alone is worth it for keeping tabs on battery health over time.

PW_Sparks | 203 posts @KangooSolar worth checking your Daly's low-temp charge cutoff setting in the app — they often ship with it set around 5°C from the factory, which would explain a 4°C cutoff...

PW_Sparks | 1,203 posts @CrafterSolar Great setup! One thing worth keeping an eye on through winter is your MPPT's low-temperature charging behaviour with the Fogstar.