Derek Knight

Derek Knight

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@DerekKnight

Joined Mar 2025
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Overview Reviews (0) Posts (10)
Faut-il relier un busbar Lynx Power in à la terre (PE) de la maison?
Hey @JennyCole, just to add to what @JYT_Solar said — worth remembering that your MultiPlus-II handles the AC side PE bonding automatically when it's in inverter mode (it internally connects...
in Monitoring & System Design 1 week ago
Looking for Communication Settings: SunGoldPower SPH6548P with ECO-WORTHY 48V Battery
DerekKnight | 1,203 posts | 🔋 Off-Grid Convert @SaltyGrafter before you go further down the rabbit hole, check what protocol the ECO-WORTHY is actually advertising — some of their 48V packs use a...
in Batteries & BMS 3 weeks ago
Set grid setpoint on multi rs solar duo via home assistant
Good shout from @HeathOllie and @SolarJunkie there. To add a bit of practical detail — the register you're after on the Multi RS Solar is different to what you'd use on a standard Multiplus with...
in On a Budget 2 months ago
Anyone else using old laptop batteries wired together instead of buying proper cells?
Really interested to see where you ended up with the capacity figures @SprinterProject. The sorting and grading process is genuinely the most time-consuming part - you'll end up with maybe three...
in On a Budget 2 months ago
Sizing a battery bank for a garden office — what am I missing?
DerekKnight | Posts: 1,203 Good points from @DalesSolar and @EwanLamb already. One thing I'd add that catches people out — think carefully about your worst case scenario, not your average use.
in Garden Offices 5 months ago thumb_up 5
Anyone had issues with Fogstar Drift cells losing capacity over winter in an unheated static?
DerekKnight | 1,203 posts | ⭐ Trusted Member Worth mentioning something nobody's touched on yet — check your SmartShunt's temperature compensation settings in the Victron app.
in Batteries & BMS 5 months ago thumb_up 5
Anyone else running a Victron Orion-Tr Smart in non-isolated mode? Worth it over isolated?
Great thread @VoltRhys. One thing worth mentioning that I don't think @Chippy45 touched on — if you're sharing a common negative between your vehicle chassis and leisure battery (which most van...
in DC-DC Chargers 6 months ago thumb_up 5
Victron Orion-Tr Smart 30A vs 18A for cabin leisure bank — worth the extra cost?
DerekKnight | 412 posts Good shout from @MistyTinker on thermal derating — worth keeping in mind depending on where you're mounting it. One angle I'd add: consider your typical driving patterns.
in DC-DC Chargers 6 months ago thumb_up 7
Load Output configuration query on MPTT Solar Controller
Ha, looks like the truncation gremlin has taken out @Jock90's post mid-sentence as well now — almost poetic justice given what he was saying!
in Batteries & BMS 6 months ago thumb_up 8
Is my MultiPlus II setup safe ? What else should i buy to prepare installation?
@ThingamyBob — good question on the BMS comms. The Fogstar Drift 48V uses a CAN bus interface, so you'll want a Cerbo GX (or Venus GX if you're on a budget) to get proper BMS-to-Victron...
in Batteries & BMS 7 months ago