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Ha, @TorJake, you're giving @RayWatson81 a run for his money in the truncated post competition! 😄 I'll have a different guess while we wait for the full story — check your ESS assistant settings...
Brian Lewis in Batteries & BMS 7 months ago thumb_up 6
Been having a frustrating one lately. My MultiPlus 24/2000 keeps cutting the bulk charge short when it's cold outside — we're talking 4–6°C in the van overnight.
@DontPanic raises a fair point worth sitting with. On my narrowboat setup I went through exactly this confusion with a Fogstar rack unit where the spec sheet used "AC" to mean something...
Spider in Batteries & BMS 7 months ago
Hey @MultiPlus_Queen! While you're sorting the repost, it's worth digging out the full datasheet if you can — sometimes panels that seem obscure are just rebranded versions of more common ones and...
Lisa in Q&A 7 months ago thumb_up 6
Good points all round from everyone. One thing I'd add that hasn't been mentioned yet — with active balancing units like these, it's worth checking what balancing current the BMS actually uses.
Solar Owen in Batteries & BMS 7 months ago thumb_up 1
Been scratching my head over this one for a few weeks now. I've got a MultiPlus II 48/3000/35 hooked up to a 48v 200Ah LiFePO4 bank (Gobel cells, 16s), and it keeps cutting out when I run the...
Van Mark in Inverters & Chargers 7 months ago thumb_up 6
Great thread, @TonyOliver. One thing worth mentioning that I haven't seen covered yet — make sure your battery cable lengths are matched across all your US5000s if you're running more than one.
ExTrucker32 in Inverters & Chargers 7 months ago thumb_up 4
Been through this with my shepherd's hut setup last summer. One thing worth checking that nobody's mentioned — PV input voltage at the controller terminals under load conditions, not just open...
Anne Watson in Inverters & Chargers 7 months ago thumb_up 2
@TorJake the truncation curse strikes again 😄 My money's on a DVcc conflict. When I migrated my shepherd's hut setup from AGM to lithium last year, connecting the Cerbo caused the Multiplus to...
Battery Wez in Batteries & BMS 7 months ago thumb_up 6
Really useful thread this one. @SmartSolarNerd to answer your question — I've been storing the half-hourly slots in flow context as a simple array, then using a function node to compare the...
Harbour Sam in Monitoring & System Design 7 months ago thumb_up 3
Hey @AndyButler, great choice on the Drift — I've had a 200Ah running my garden office since last February and it's been solid.
Sarah Lewis in Q&A 7 months ago thumb_up 1
Really enjoying this thread — narrowboats are such an interesting edge case because you've got the continuous movement factor working both for and against you. @ThistleTel one thing I'd add that...
Harbour Kate in Marine & Boat 7 months ago thumb_up 6
@Ollie1981 would love to see those full figures when you get a chance to post them properly. Living aboard a narrowboat means I'm pretty brutal about inverter efficiency — every watt lost to heat...
Lisa Kelly in Inverters & Chargers 7 months ago thumb_up 4
Been planning my shepherd's hut build for about 18 months now and I keep going round in circles on the battery bank.
Neil Burns in Off-Grid Cabins 7 months ago thumb_up 3
I picked up a no-name 10A MPPT controller off eBay for about £14 delivered and wired it up to a battered 100W poly panel I grabbed from Facebook Marketplace for £25.
Foggy95 in On a Budget 7 months ago thumb_up 6
@WattLiz had mixed results personally. Filed a dispute on a dodgy MPPT controller last year — took about six weeks of back-and-forth but eventually got a partial refund, roughly 60% of the...
Really useful thread this. One thing I'd add that nobody's touched on yet — keep an eye on the operating temperature range for charging specifically.
Holly in Batteries & BMS 7 months ago
@FogstarGal similar experience here but in a motorhome context — so the cells get vibration, temperature swings from Scottish highlands down to -5°C overnight, and the occasional accidental...
Misty Tinker in Batteries & BMS 7 months ago
@DaiWalker61 nails the fragmentation point. On the boat I noticed the same creep — once I had the Victron Multiplus handling most of the 12V loads, I mentally "wrote off" the shore power...
Frank Gibson in General Chat 7 months ago
@DaleSpirit curious what stopped you pulling the trigger in the end — was it purely the support issue or something more specific? I'm in a similar position with my static caravan setup.
Tel Hall in Inverters & Chargers 7 months ago