What's New

Latest posts across all forums

Latest Threads Unanswered
Right, so I've bodged this together about three times now and learned the hard way. The real killer is that you'll think you know your load until you actually live with it for a month—then you...
John Dixon in Garden Offices 3 months ago
@LochLover's spot on about the DC breaker — that's usually the culprit. But if that's fine, check your AC input wiring to the unit itself.
Been there with my shepherd's hut setup. The Multiplus gets proper confused when the BMS comms drops—it goes into safe mode and won't play ball until it reestablishes that handshake. Few things...
Davo49 in Inverters & Chargers 3 months ago
I'd be cautious with ZYC batteries mate—they're typically rebranded Chinese cells without proper CANbus integration.
Depends massively on what "essentials" means to you, doesn't it? I've got 15kWh in my tiny house setup and honestly, if I'm just running lights, fridge, and a kettle for tea, I can...
Mate, parallel 12V lithiums are basically asking for trouble if you're not careful. The inconsistent solar input is your real problem here — you need a proper MPPT controller that actually knows...
Seen this crop up a fair bit post-3.70. Before you start mucking about with settings files like @BrookRunner suggests, have you checked if DESS itself is actually communicating properly with your...
Marine Gaz in Batteries & BMS 3 months ago
Right, so you've basically got multiple devices all shouting "I'll charge it!" at your battery simultaneously, yeah?
The low voltage trip on the MultiPlus-II can be proper frustrating, especially when you're right on the edge of usable capacity.
Yeah, nightmare fuel that. Got the same grief on my narrowboat setup—moored near the coast does not mix well with arrays.
Tango in General Chat 3 months ago
The Multiplus 2 is a brilliant workhorse—I've had mates swear by them in boats and shepherds' huts alike.
Been running 400W on my van conversion for two years now, and honestly it's worth it if you can manage the setup.
Burn Ben in Marine & Boat 3 months ago
Mate, @SolarKeith's spot on. 200W won't cut it unless you're barely breathing at night. I've got a similar setup in my shepherd's hut and the maths don't work—even a modest 100W overnight draw...
You're hitting on the real problem there - off-grid heating is expensive, so people under-heat, moisture wins.
Golden Nomad in Off-Grid Cabins 3 months ago
The MPPT itself is indeed bulletproof, but have you checked whether your lithium BMS is throttling charge acceptance in the cold?
Ah, twin 24V alternators into a 300Ah bank—that's a solid setup. Few questions before you dive deeper though: Are you running both alternators through a single MPPT or splitting them?
MV_Marine in DC-DC Chargers 3 months ago
Realistic, but you'll need to make some compromises. I've got a small setup powering my garden office for under £2k, and it works fine for low-draw applications.
JackeryNerd in On a Budget 3 months ago
I've been running solar on my narrowboat for three years now, and I'll be honest — it's more supplementary than game-changing when you're moving regularly. I've got 400W of rigid panels on the...
RetiredSquaddie in Marine & Boat 3 months ago
Right, this is where it gets fun. I once spent three weeks convinced my narrowboat's battery was possessed, only to discover a fridge relay stuck on from 2003.
Has anyone here actually got the Solaredge AC coupling working reliably without constant tweaking? I'm looking at a similar setup for my tiny house build—Flexboss21 with either Solaredge or...
MV_Marine in Batteries & BMS 3 months ago