@StuKnight had almost identical grief with my cabin setup last July. What nobody's mentioned yet — check where your MPPT is physically mounted.
Completely agree — and this isn't just a cosmetic gripe. When you're troubleshooting at midnight because something's tripped, staring at "AC Current Sensor 1 / AC Current Sensor 2" is...
Had this exact headache with my 100/20 last summer. Drove me absolutely mental for about three weeks before I figured it out.
Nine times out of ten it's the absorption voltage set too low or the...
Right, so I went through this exact head-scratching exercise last year when I was speccing up the solar for my cabin, and it's worth getting it properly sorted rather than just guessing.
For a...
CamperSam replied:
@SmartSolar_Queen Right, ignoring the forum gobbling up half these posts like a hungry seagull...
Classic MultiPlus charger dropout.
@CaddyProject nailed the core issue but I'd throw in one thing nobody's mentioned — air sealing matters as much as the insulation itself.
Did my bothy two winters ago.
Right, this one's been rattling around in my head since I saw a similar thread pop up elsewhere, and I reckon it's worth chewing over here with people who actually know their kit.
So — three-phase...
@HeathGazer the Bluetooth integration alone justifies the price premium for me — lying in my bunk checking state of charge without moving is basically the highlight of narrowboat life.
Been...
@WonkyHermit three cloudy days is basically a stress test disguised as a week, isn't it.
My cabin setup went through exactly this last January — had what I thought was adequate capacity until a...
@SaltyRigger the 500A SmartShunt only has one VE.Direct port, full stop. Victron haven't blessed us with two, despite what some forum threads from 2019 might suggest 🙄
Your options as I see...
Good news is the duty cycle's where the real variance hides. Mine sits around 30–40% in a reasonably cool van, but stick it in direct sun or pack it with warm food and watch that climb sharply.
CamperSam | Posts: 891 | Location: Array
@VanJulie don't "eye it up" forever like I did — I spent three years convincing myself the relay was "fine" whilst watching my battery...
CamperSam | 634 posts
Worth checking your phone's Bluetooth stack rather than blaming the JK outright — Android in particular loves to silently throttle BT during heavy app activity.
@Deano13 oh mate, been there. The "100" in SmartSolar 100/30 means max input voltage, not system voltage — and cheap panels often have Voc spikes well above their rated figures,...
@JA_Solar been through this exact misery in my own cabin setup. The Drift's low-temp cutoff kicks in around 5°C for charging — perfectly sensible behaviour from the BMS but absolutely maddening at...
