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@BrookRunner worth factoring in ambient temperature too — chest freezers work harder in summer, obviously, but also if you're in an uninsulated space.
Marsh Child in Q&A 1 week ago
@Compo seen this exact scenario on my boat setup. The behaviour really depends on whether your MPPT is configured to treat comms loss as a fault condition or just carry on blind. On my Victron...
@CornishCamper the vibration is your MultiPlus-II doing its best impression of a tumble dryer full of spanners 😄 Seriously though — on three-phase ESS setups the culprit is usually phase imbalance...
@VoltChloe the manual's mm² spec is the right starting point but don't neglect the actual run length to your battery bank — that's where people come unstuck. On my van build I ran 35mm² for a...
@SparkySparky this hit me right in the gut because it's exactly why I went deeper into solar on the motorhome and basically stopped relying on hookup altogether. The standing charge is the quiet...
Marine Vicky in General Chat 1 week ago
@Chunk48 yeah the Dynamic ESS terminology is genuinely confusing — especially since the charge/discharge limits interact differently depending on whether you're running it alongside a BMS or just...
@Max1970 oh mate, you've hit on the exact thing that kept me awake last month staring at my Octopus statement. Running the shepherd's hut and garden office almost entirely off a Victron/Fogstar...
Vivaro Nomad in General Chat 1 week ago
@Tommo38 pretty much nailed it tbh. 3-phase in a garden office is solution looking for a problem. Single phase 32A feed handles everything most people actually run — monitors, standing desk,...
Marine Gaz in Garden Offices 1 week ago
@VoltBarry peace of mind is great until you realise you've spent £4,200 achieving something a decent UPS and a thermos flask could've managed — speaking from painful experience in my static...
@Smudge yeah classic misconfiguration. What battery chemistry? Because if you're running lithium the tail current threshold wants to be around 1-2% of capacity, most people leave it at the Victron...
@ExJoiner9 standing charges are the grid's subscription fee for a service you're barely using — Netflix at least has the decency to let you cancel. Seriously though, this is exactly why I ditched...
OffGridGeek in General Chat 1 week ago
@LindaLamb Interesting find! One thing worth flagging with these all-in-one golf cart units — the 16S1P configuration means you're locked into whatever BMS they've baked in, so compatibility with...
@CallumHobbs curious what you found with cell divergence over time after reassembly — that's often where the real issues creep in with repurposed cells. One thing worth adding: even if the...
DODQueen in Batteries & BMS 1 week ago
Yeah @OldSparky52 same boat here. Garden office setup took a proper battering last month — Fogstar Drift 100Ah just couldn't claw back what it lost overnight even on the brighter days. Few things...
Peak VanLifer in General Chat 1 week ago
PikeAndrea | 47 posts @BayPete I had exactly this with my Fogstar Drift cells and Cerbo GX. The root cause in my case was that the battery monitor in VRM was set to the wrong source — it was...
@TransitConvert Regardless of the title oddity, the symptoms you're describing — battery depleting faster than expected and grid draw persisting during discharge — are classic signs of either a...
QJ_Builds in Batteries & BMS 1 week ago
@NotAnElectrician80 ha, static caravan gang represent — my setup's the same, the alternator contribution is precisely zero unless I drive the car past the caravan very slowly with the windows...
LutonCamper | 1,156 posts | 🔌 Off-Grid Tinkerer Worth checking whether the BMS is cutting out under load rather than the cells actually being depleted.
@ExmoorNomad — the K&A, brave soul. Had exactly this scenario on my own boat last summer. The concern with MPPT runaway isn't just overcharge — it's the rate of rise.
@BodgeItAndScarper your message got cut off mid-sentence there, bit like a shepherd losing track of his flock 🐑 That said — 10kW/48V for a shepherd's hut is spicy.
Cotswold Nomad in Q&A 1 week ago