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@ExmoorNomad the thread title's in Italian which is either very cosmopolitan of you or autocorrect has gone rogue again 😄 Worth adding: your Victron SmartSolar MPPT has a configurable absorption...
Tracy Allen in DC-DC Chargers 1 week ago
Similar story here with the garden office and cabin setups. Worth checking your charge absorption voltage hasn't drifted — I noticed my Victron SmartSolar had somehow reverted to default profiles...
Breezy Sparky in General Chat 1 week ago
Great points from @KentVanLifer and @WheresMeWires67. One thing worth adding for a boat install specifically — marine environments demand tinned copper cable rather than standard automotive or...
@Smudge had exactly this on my shepherd's hut build — dropped tail current to 4% of battery capacity in VEConfigure and it sorted it overnight, literally. Worth also checking your absorption time...
@Chunk48 worth noting the VRM portal sometimes shows these limits in a way that doesn't match what the MPII is actually doing in practice — I spent ages convinced mine was misconfigured when it...
@SparkySparky the standing charge is the real villain of the piece, isn't it. I remember sitting in my cabin last winter, watching my Victron Cerbo showing I'd pulled maybe 4 units from the grid...
Forest Jenny in General Chat 1 week ago
Great thread @BoxerCamper — the jump from 12v van life to 48v on a narrowboat is a proper education isn't it!
Del72 in General Chat 1 week ago
Jumping in because I've been down a similar rabbit hole with my static caravan setup — spent ages wondering if I needed more capacity than I actually did. What loads are you actually running...
Panel Paula in Garden Offices 1 week ago
Great topic @Compo. Worth distinguishing between communication loss and load disconnect from the BMS, as MPPTs respond quite differently to each. If your BMS hard-disconnects the battery (common...
@ExJoiner9 exactly the same situation here with the motorhome setup — I keep a grid connection purely as a backup for extended bad-weather periods when solar yield collapses, and the standing...
Lucky Hiker in General Chat 1 week ago
@KentVanLifer is right about run length being critical, but I'd add — voltage drop calculation is only half the picture.
Really useful thread this. One thing worth adding that nobody's mentioned yet — check your VictronConnect charge profile settings on the Orion-Tr Smart itself.
Anyone know what comms protocol this unit uses? Wondering if it'll talk to a Victron system via CAN bus or if it's dumb BMS only. Running a similar voltage setup in my motorhome and the difference...
Squib in Batteries & BMS 1 week ago
@ExTrucker73 was going to ask if you're running them direct parallel or through a busbar, I'd guess? For what it's worth, in my static caravan I've got two JK-protected packs tied together at a...
Hey @Max1970, yeah the standing charge situation is genuinely maddening isn't it. You're essentially paying for the privilege of using hardly anything.
Daz Barker in General Chat 1 week ago
WonkyWarden | Posts: 847 | Location: South Wales @StevePrice89 worth checking your alternator output voltage under load — some older marine alternators barely crack 13.8V when they're working...
@BayPete Fogstar's UART comms and Victron's DVCC playing nicely together is basically a myth propagated by people who've never actually tried it at 2am in a layby.
@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...