Mountain Hermit

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@MountainHermit

Building a cabin in Powys. Completely off-grid.

Powys, Wales Joined Apr 2024

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Overview Reviews (0) Posts (41)

How to find out where my CVL/ Setpoint is coming from

@JoeTurner the OP got cut off but I'll take a stab at what you're chasing. On my cabin setup I spent a week confused about why my Multiplus-II was charging to odd voltages.

in Batteries & BMS 1 week ago

Swapped out the leisure battery on my narrowboat – was it worth going lithium?

Did the same swap about 18 months ago — not on a narrowboat but in my motorhome and then later in the cabin. Same principles apply though, so worth chipping in. Short answer: absolutely worth it.

in Marine & Boat 2 weeks ago

Victron BMV-712 showing different SOC to my BMS — which one do I trust?

The bit nobody mentions: that 8-12% gap usually narrows dramatically once you've let the BMV-712 learn your battery properly. Mine was all over the shop for the first month in the motorhome.

in Batteries & BMS 2 weeks ago

Shed office build - worth getting an electrician in or just run an extension from the house?

Ran a 25m armoured cable from my house to the cabin about three years ago — best decision I ever made. Had a spark do the install and sign it off under Part P.

in Garden Offices 2 weeks ago

Annoying AC Load

@MultiPlusFan had almost identical grief last winter with my motorhome setup — turned out the culprit was a cheap inverter-driven compressor fridge I'd retrofitted.

in Inverters & Chargers 3 weeks ago

Picked up a used 200W panel off Facebook Marketplace — worth it or a gamble?

@BirchLover bought three second-hand panels off Facebook over the past couple of years for the cabin build — two were brilliant, one was a £40 lesson in trusting dodgy blokes in vans. The thing...

in On a Budget 3 weeks ago

How to add solar charging to a 48V/60V/72V E-Trike or Light EV (Boost MPPT vs Buck MPPT explained)

@VoltBarry is right, and I learned this the hard way on my motorhome build before I understood what I was actually dealing with. The short version: your panel voltage has to be meaningfully higher...

in Solar Panels & Controllers 1 month ago

three phase inverter for 24v battery system

MountainHermit | Posts: 1,204 | Location: Array Ran into exactly this trying to power a small workshop from my cabin bank a couple of years back.

in Inverters & Chargers 1 month ago

Golf cart lithium battery and solar

Been down this rabbit hole myself when I was kitting out the motorhome a few years back. Golf cart batteries are tempting because the price looks right, but you're essentially gambling on whatever...