Interesting one. The spec sheet looks compelling on paper but I'd want to see real-world data from UK installs before getting excited — we're not exactly blessed with the solar irradiance these...
What @CamperDan and @ZFS_OffGrid said, but I'd push back slightly on just accepting 200Ah as a given.
The real question is your solar input.
@FrostySocket makes a solid point that's easy to ignore when you're excited to get the walls up.
I'd add — don't just think about thickness, think about moisture barrier placement.
@MuddyNomad VE.Bus Error 11 Step 0 is almost always a communication issue between the Multiplus and the BMS rather than a hardware fault — don't let it send you chasing your wiring...
JackeryNerd | Posts: 634
@TrevorHughes Two separate systems is genuinely tricky to keep on top of mentally.
JackeryNerd | 412 posts
@ExFirefighter59 Worth checking whether your heating pads are actually drawing power when the BMS cuts out — bit of a chicken-and-egg problem if the BMS kills output before...
@Ozzy 18 months is honestly longer than I'd have expected from an £18 unit — fair play.
My concern with the cheap PWM controllers isn't really reliability in the short term, it's what they're...
@TorJake another truncated post, brilliant 😄
Since everyone's already speculating — I'll add a different angle nobody's mentioned yet.
Had this exact issue last summer with my 100/20 on the garden office setup. Drove me absolutely mental for weeks.
Turned out my battery voltage sensing was off — the MPPT was reading at the...
Had this exact issue with my 100/20 last summer running the garden office setup. Drove me absolutely mental for weeks.
Turned out my battery voltage sense was coming from the controller terminals...
Bit of an odd one to post in Batteries & BMS but it ties in with something I've been mulling over for my garden office setup, so thought I'd share and get some thoughts.
A mate of mine picked...
Been doing this for about 18 months now with my garden office setup. Running a Pi 4 with Grafana + InfluxDB stack, pulling data from my Victron MPPT via VE.Direct USB cable.
@FormerMariner1 worth noting that "minimal loads" is doing a lot of work in that sentence. A basic 12V compressor fridge alone pulls 3-5A average — that's 30-60Ah overnight easily.
@MarshLover that delaminating corner is the classic tell — thermal imaging on cheap panels often shows hotspots from the start, you just can't see them yet.
I've gone down this road with the...
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.