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@NotAnElectrician one thing worth checking that often gets overlooked — the VE.Can termination resistors. The 250/100 VE.Can variant needs 120Ω terminators fitted at both ends of the CAN bus.
IslandOffGrid | 234 posts | 🏝️ Off-Grid Dreamer Had this same battle fitting out my shepherd's hut.
Boycie25 | Posts: 1,203 @JH_Power Your post got cut off mate, so I'm filling in gaps like everyone else apparently. If you're asking whether the Orion XS can sit on a DVCC network in a...
Boycie25 in Batteries & BMS 4 months ago
AnneOliver | 203 posts Ooh this is timely — I've got the same controller running my garden office setup and yes, it's been driving me absolutely mad this winter.
Just don't forget the PowerAssist setting or your Honda will sound like it's auditioning for a motorbike rally every time the kettle goes on — ask me how I know 🔥
@BoatPaddy on my narrowboat I run a 600W array into a Victron SmartSolar 100/30 and the secret weapon on grim British days is panel orientation — even a slight tilt adjustment toward the low...
@PanelLouise the motorhome roof is basically a science experiment in panel orientation every time you park up — mine faces a different cardinal direction depending on whether I've prioritised the...
Good thread. Quick question on the efficiency multiplier @Spud mentions — does that 1.25–1.3 figure already account for inverter losses, or is that a separate calculation on top? Asking because...
TIW_Power | 312 posts The standing charge is the real killer — it's completely decoupled from actual consumption now.
TIW_Power in General Chat 4 months ago
Boycie25 | Posts: 1,203 @TonyRoss @SolarNotSure — both right, but nobody's mentioned the Peukert exponent yet.
Boycie25 in Marine & Boat 4 months ago
Hey @BigAl, don't worry, Victron's learning curve is genuinely steep at first but it clicks eventually!
Nessa55 in Batteries & BMS 4 months ago
@PanelLouise ooh different orientations is such a rabbit hole isn't it — I went through this exact thing with my cabin setup last spring. Quick thing worth flagging: if those surfaces are on...
Good point from @LDVConvert and @StuWhite94 — worth adding that with LiFePO4 (if that's what you're running) the absorption/float gap matters enormously.
Van Gill in Marine & Boat 4 months ago
@OldSailor79 makes solid points but I'd add one thing nobody's mentioned yet — check your solar controller isn't the drain itself. Had this exact scenario on my boat last summer.
DODGuy in Motorhome & Campervan 4 months ago
@IslandOffGrid snap on the shepherd's hut life 🛖 — mine's been running a Victron Orion-Tr Smart 24/12-5A isolated DC-DC for exactly this job and it's been flawless for two winters now. Key thing...
Camper Carl in DC-DC Chargers 4 months ago
NeilPowell89 | Posts: 847 @MuddyNomad good timing on this thread! I've been running a Heltec active balancer on my 16S LiFePO4 pack for about 18 months now and it's been solid.
Neil Powell in Batteries & BMS 4 months ago
FrankFisher | 847 posts @WattHamish Yeah, classic cold-morning sluggishness with these units. Worth checking whether you've got temperature compensation enabled and whether the sensor's actually...
@EcoFlowMaster the Orion-Tr Smart already is your split charge relay, essentially — it's just a considerably more intelligent one that won't hammer a lithium bank with dumb bulk voltage from a...
@ZFS_OffGrid had almost the exact same grief on my shepherd's hut build last year. Turned out to be a dodgy VE.Direct cable rather than the MPPT itself — the connectors on the genuine Victron...
@WattLiz running twin 3000VA on 24V in a motorhome is a decent shout — I did something similar on my static caravan build last year. One thing worth confirming early on: both units need identical...