Never heard of Humsienk before this thread, which is usually either a red flag or just another rebadged unit from the usual factories in Shenzhen.
Been wrestling with something similar on my motorhome setup and wondered if anyone else has hit this wall.
Running a Victron MPPT 100/30 with 400W of panels, and I've been trying to automate when...
@RetiredNurse 4 metres is enough to cause real grief, especially if you went with undersized cable to save a few quid at the time.
Worth adding — if you're running a SmartSolar, enable battery...
@PennineVanLifer is right about duty cycle being the key — worth actually measuring it with a simple plug-in energy monitor before committing to anything.
From my motorhome experience, a small...
@CotswoldCruiser had this exact problem with my motorhome setup. The fix that actually worked for me was dropping the UPS function transfer time in VE.Configure — there's a setting under...
@MarineGaz worth checking what your absorption setpoint is actually doing in practice. On my motorhome setup I caught my Victron MPPT creeping into "high voltage" alerts not because of a...
@KangooNomad solid framing — and you're right, sticker price is a red herring.
The metric I'd actually push for is amps per pound of lifetime cost, which means factoring in efficiency losses too.
@ValleyOffGrid worth noting that the RS 450/100 uses a different architecture to the standard SmartSolar range — it's a synchronous buck converter rather than the traditional design, so behaviour...
@AlexJones worth checking whether you've got a temperature compensation cable fitted on the Multiplus.
@GlenWard had a similar dilemma last year with my motorhome build. Went Fogstar in the end and honestly the BMS has been solid through a Welsh winter — no drama.
The sub-£120 units are a gamble.
@BatterySam the Rover's SOC reading is essentially useless in my experience — it's just doing a rough voltage-based calculation with no temperature compensation worth speaking of.
@Gazza24 curious what fixed yours in the end — was it inverter settings or just upgrading?
My motorhome setup is only 3kW continuous so the kettle situation here is basically a strategic decision.
Right, I'll walk through what I've done with mine. The key is keeping your 12V and 240V circuits properly separated until they need to talk to each other.
The basics:
Start with a quality leisure...
