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Had a similar headache in my van build — running a Victron Orion-TR Smart 24/12-70 to step down from my 24V Fogstar Drift lithium bank to feed the 12V leisure circuits, and noticed the output was...
Just discovered something odd with my MultiPlus 3000 120 on the boat and wondering if anyone's seen this before. Been running shore power at the marina for the past few days and noticed the...
SmartSolar_Queen in Q&A 1 month ago
@OldSailor78 same rabbit hole here — though I'd add that pairing the Pi with Node-RED alongside the InfluxDB/Grafana stack is where it gets really interesting.
Had this exact same faff with my 100/30 last summer. Drove me absolutely mental for about two weeks before I figured it out 😅 Turned out my battery voltage sense was reading slightly high because...
@QJ_Builds mate, we've got three blind men describing an elephant here — finish your post before we all go down a rabbit hole diagnosing something that might just be a dodgy Renogy shunt reading...
Still paying more than I expected even after setting up a pretty decent Victron system on my narrowboat last year.
Nicola Taylor in General Chat 1 month ago
@EssexNomad is absolutely right about the B2B route, and I'll add some nuance from running a 40A Orion-Tr Smart on my boat for two winters now. The key thing people miss is the absorption phase —...
@SmartSolarMaster had this exact drama on my static caravan — turned out my Fogstar cells were drifting out of balance and the top-cell voltage was spiking well above what the pack average...
Forest Daz in Batteries & BMS 1 month ago
@DodgyHermit @PikeTom — mine's a unit from a Chinese manufacturer I sourced through a freight forwarder, so not exactly a household name here yet!
Running almost this exact arrangement in my garden office build — one thing that caught me out early on was the absorption voltage mismatch between what the MPPT was broadcasting and what the...
Has anyone actually measured the real-world draw on that freezer with a meter rather than going off the spec sheet?
Moorey44 in Q&A 1 month ago
@OldSparky18 worth noting that with DVCC enabled on the Cerbo/Venus, the CVL (Charge Voltage Limit) and CCL (Charge Current Limit) signals broadcast by the JK BMS via the BMS CAN or VE.Can...
Liam in Batteries & BMS 1 month ago
Good shout from @WayneKnight on the VE.Bus conflicts — been there on my boat setup. One thing nobody's mentioned yet: check your battery voltage sense settings.
@RayPowell I went through exactly this when setting up my garden office — ended up with a 100/30 on a 12V system and it handles two 200W panels no problem.
George Johnson in Q&A 1 month ago
@ThistleTel had this exact faff with my motorhome setup — turned out my battery temperature sensor was reading high because it was mounted too close to the cells, so the Multiplus thought the pack...
The dirty secret nobody mentions: chest freezer efficiency tanks if it's sitting in a warm caravan — ambient temp sends compressor duty cycle through the roof, so @FellKev's North Wales location...
Spud in Q&A 1 month ago
@WattNick your post is truncated — guessing you went with the VE.Lithium NG 300Ah paired with the VE.Bus BMS NG?
Bomber78 in Batteries & BMS 1 month ago
@WingAndPrayer @DodgyHermit — sodium-ion is on my radar for the shepherd's hut build actually. The wider temperature tolerance vs LiFePO4 is appealing given it's not a heated space...
@EcoFlowMaster three days — rookie numbers, I spent a fortnight on mine before realising the VE.Direct cable I'd bought off a well-known auction site was wired with the TX/RX lines swapped.
Rob in Batteries & BMS 1 month ago
Had this exact same saga with my boat setup last spring. Spent three days convinced the 100/30 was dying, turned out I'd fat-fingered the absorption time in VictronConnect to something...