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Taffy | 134 posts | ⛵ Boats & Backup Running a smaller salvage pack on my boat so genuinely curious — what BMS are you planning to use with it?
Taffy in On a Budget 3 weeks ago
@EmmaPowell74 yeah, been there. My shepherd's hut setup had the exact same issue two winters ago with a 100Ah LiFePO4 — woke up to a flat system because the BMS had locked out charging overnight...
Neil Burns in Batteries & BMS 3 weeks ago thumb_up 6
Great thread! One thing I'd add @DebbiePowell76 — check whether your BMV-712 has actually hit a proper synchronisation point recently.
Roger in Q&A 3 weeks ago thumb_up 4
BoatMatt | Posts: 847 @WonkyWelder Worth every penny in my experience. Been running 200Ah of LiFePO4 on my 57-footer for two winters now and the difference is night and day.
Boat Matt in Marine & Boat 3 weeks ago thumb_up 2
Great points from everyone already. One thing I'd add @BurnKen is to look at self-heating battery options if you're planning to expand or upgrade down the line — some of the newer LiFePO4 cells...
Jake in General Chat 3 weeks ago thumb_up 8
MountainBarry | 412 posts Had almost identical grief with my cabin pack last winter — turned out to be the cell-level sense wire crimps.
Mountain Barry in Batteries & BMS 3 weeks ago thumb_up 2
@LuckySkipper worth checking whether your Victron is actually re-sweeping for a new MPP during that shaded period — the SmartSolar does periodic sweeps but the default interval might mean it's sat...
Birch Daz in Solar Panels & Controllers 3 weeks ago thumb_up 9
Wayne1996 | Posts: 312 | Location: Midlands To add to what @JohnBaker and @Paddy78 are getting at — the MultiPlus-II 48V also gives you much better options when you eventually want to expand.
Wayne in Inverters & Chargers 3 weeks ago thumb_up 5
Good advice already from @MoorClive and @Steve1978 on the load assessment side. One thing worth flagging for a static Cornish setup specifically — don't underestimate how many consecutive grey...
Frank in Q&A 3 weeks ago thumb_up 2
Hey @LisaStewart71, with no load overnight that's genuinely odd. A few things worth checking: firstly, have you set your BMV-712's Peukert exponent and charge efficiency factor correctly for...
T5 Build in Q&A 3 weeks ago thumb_up 1
@Gibbo39 worth connecting each cell individually to a bench power supply and logging the resting voltage after a 24-hour soak — not immediately after charging.
Mandy Ross in Batteries & BMS 3 weeks ago
@WonkyRigger been running a knackered old 20Ah AGM under the stern deck purely for the bilge pump and a cheap 12V lamp — basically my "well at least I won't drown in the dark" battery —...
FormerMechanic43 in Emergency & Backup Power 3 weeks ago thumb_up 7
@MoorDweller ran almost this exact setup on my narrowboat for a season before I sorted it properly. The issue nobody's mentioned yet is charge source priority — if your MPPT and the split-charge...
Sunny Viking in Motorhome & Campervan 3 weeks ago thumb_up 2
MarineSam · 447 posts @SamWhite worth checking your battery temperature compensation settings in the Victron app — the SmartSolar has a dedicated temperature coefficient setting (usually around...
Marine Sam in Solar Panels & Controllers 3 weeks ago thumb_up 5
Hey @Chunk75, gutting timing on that update! Just to add to what the others are saying — have you tried toggling the BMS Bluetooth off and back on via the physical button on the unit itself rather...
Vito Adventure in Batteries & BMS 3 weeks ago thumb_up 9
Running a Victron SmartSolar 100/30 with a 200Ah lithium (a Fogstar Drift 12V) in my van, and over the last few weeks as temperatures have dropped I've noticed the SOC reading on the...
Battery Doug in Q&A 3 weeks ago thumb_up 6
@DaveMoore70 kettle's almost certainly your culprit mate. Even a "small" one is pulling 1000-1500W and the Drift's BMS can be touchy about sudden high-current spikes, especially if your...
Ollie Thompson in Batteries & BMS 3 weeks ago thumb_up 3
Really relates to my situation — I've got a similar lithium setup on my narrowboat and the "watching the percentage drop" anxiety is real. Quick question for the thread: has anyone...
Berlingo Convert in Emergency & Backup Power 3 weeks ago thumb_up 1
RelaySolar | 847 posts | ☀️ Narrowboat Spark Running Fogstar Drift 200Ah on the boat and a Renogy 100Ah in the van — both talking to Victron kit, both using the same laptop to argue with them at...
Relay Solar in Motorhome & Campervan 3 weeks ago thumb_up 4
Really glad this thread is gaining traction — great to see so many different setups represented here. @FellLover welcome to the forum!
Bramble Ella in Monitoring & System Design 3 weeks ago thumb_up 6