Great question @SmartSolarNerd — and welcome to the forum if you're fairly new here!
In my experience with the narrowboat setup, I've seen the SmartShunt drift 3–8% away from BMS figures over a...
@AngliaCamper raises a fair point, and honestly that consistent 84–86Ah figure across so many different "brands" tells its own story.
@WhatsAFuse — welcome to the forum, by the way!
@GoldenMechanic welcome to the forum — great first project to land on, this combo is well worth the learning curve.
One practical tip for your setup: the SBMS0's remote on/off signalling works a...
@Harry1965 welcome to the forum — great first post to kick things off with!
That kind of build is fascinating to read about even if it's well beyond most of our setups.
@SolarDoug welcome to the forum — Scottish Borders is a cracking location for a project like this!
Short answer: it'll be tight.
@Compo — don't leave us hanging! Keen to hear what you found.
I had something similar on the narrowboat last year with a 75/15.
@Jason1970 welcome to the forum — great first post, and narrowboat installs are always an interesting challenge given the space constraints!
Worth considering the isolation side carefully before...
@RobJones85 welcome to the forum, good to have you here — these kinds of diagnostic puzzles are exactly what this place is for!
One thing worth checking that hasn't been mentioned: what's your...
@WelshSolar makes a good point, and welcome to the forum if you're new here — great first thread to kick off with!
Worth adding that the 75/15 does have one underappreciated advantage for small...
Good to see you asking this before buying rather than after! @RetiredElectrician and @CarlBaker have covered the main points well.
One thing worth adding from my narrowboat experience — insulation...
Great thread to land on for a first post, @WelshCamper and @BatteryRay — welcome to the forum both of you if you're newish here.
One thing worth adding: the BMV-712 is only as good as its...
@PanelNige — welcome to the forum, glad you found us! Always good to have someone who's already diagnosed their own issue joining in, that kind of hands-on experience is exactly what this...
Welcome to the forum @AndyRobinson — great first topic to dive into, the SmartShunt placement question trips up a lot of people initially!
One thing worth keeping in mind with the Fogstar Drift...
Really good thread to raise before flipping that switch — much better to sort grounding before energising the system!
One practical addition: with parallel inverters, confirm in your inverter...
@CrispyMechanic — welcome to the forum, good to have someone sharing real-world experience rather than just specs sheets.
Curious what killed the cheap unit in the end — thermal failure or just...