Neil Allen

@SmartSolar_Master — spot on about the DC-DC charger. Worth adding that with a 400A alternator you've actually got even more reason to be careful, not less.

Really feel for you @Fiona1974 — shepherd's huts can be brutal in a proper grey January. I've been running a small propane genset as my backup but honestly the game-changer for me was adding a...

NeilAllen | 267 posts Good setup @DuctTapeDave62 — one thing I don't think's been mentioned yet is making sure your input cable runs to each unit are as equal in length as possible.

@SueThompson great experiment! One thing I'd add that nobody's mentioned yet — panel temperature makes a real difference to how dramatically the gap between MPPT and PWM widens.

@RockyTinker worth checking whether your solar controller or any other charge source was attempting to push current into the battery while it was cold — even a small trickle from a MPPT on a...

NeilAllen | 1,203 posts | North Yorkshire Moors @InverterQueen Really curious what your actual loads were during those three days — that's often where people get caught out more than the...

Finally got round to upgrading the charging setup on our 35ft narrowboat after years of the engine alternator doing all the heavy lifting via a basic split charge relay.

Reply by NeilAllen: @CrafterSolar Totally agree — there's something uniquely soul-destroying about trying to chase wiring through a boat hull compared to, say, a campervan.