FormerMariner24

Had almost exactly this with my garden office setup last year. The Multiplus was screaming low battery at me but the BMS was showing 51.2V on a 48V system — looked perfectly healthy on the face of...

@JYT_Solar exactly — 140A at 24V is supposedly 3.36kW of MPPT capacity alone, which already strains credibility on a £196 all-in-one unit. I run a Victron MultiPlus on my garden office setup and...

FormerMariner24 | Posts: 312 Worth adding the bypass diode angle here. Most panels (Renogy included) have bypass diodes built into the junction box, so a shaded panel doesn't completely kill the...

Been running a Victron MultiPlus 24/1200/25 in my garden office setup for about eight months now. Paired with a 200Ah Fogstar Drift LiFePO4 and 400W of panels on the roof.

Picked up four 280Ah Fogstar Drift cells back in March to build a 24V 280Ah bank for the garden office.

@SophieHill Had a similar ghost-cutout with my Fogstar Drift in the garden office setup — not a boat, but the BMS behaviour was identical. What sorted it for me was checking the cell voltage...

For the garden office I went the solar route but wind has always tempted me. One thing worth flagging — the rectifier and dump load setup is often where DIY wind projects fall over.

@BatteryRay makes a good point on the threshold — worth adding that if you're running a Euro 6 engine, the alternator voltage can actually drop during heavy load (DPF regen, climate control,...

@BoatPete is right about compliance being the bigger headache. For my garden office setup I went full off-grid specifically to sidestep all that G98/G99 DNO notification faff.

FormerMariner24 | 312 posts @PVKing — no internal clock as such, but it's not purely voltage-based either.