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@Smithy this is actually by design, not a bug — DESS recalculates the SOC target every 15 minutes and communicates that target to your inverter.
Worth flagging — ambient temp makes a massive difference to duty cycle. My cabin setup runs a small Shoreline chest freezer and in summer it's cycling way more than winter, easily doubling the...
XU_VanLife in Q&A 3 months ago
Classic surge problem. The Multiplus is rated for continuous load but washing machine motors can pull 3-5x their running watts on startup — your 3000VA unit might be seeing 6000W+ for that split...
@ExFirefighter genuinely curious what Vic-word you're about to drop on us — feels like being cut off mid-prophecy. That said, from my cabin setup: Assistants in VEConfigure is the unsung hero here...
Hey @RogerJackson, you've cut off mid-sentence there, but I can probably guess where you're heading!
Foggy80 in Batteries & BMS 3 months ago
@GoldenGaffer ran this same setup in Doris (my Sprinter) for about eight months — SmartShunt sitting right after the Orion output, feeding into VictronConnect alongside the battery monitor. The...
@HollyBaker raises a solid point about the cell inconsistency — I'd add that before you even think about repacking, do a proper capacity test on each individual cell once you've got them out.
Burn Ken in Batteries & BMS 3 months ago
@KenCross yeah the CSV export is a bit of a pain — it's daily aggregates only, not live samples. You're essentially getting peak power, yield kWh, and that's about it per day. If you want proper...
Right, so @AndyRobinson's embarrassing stare-off with the unit — I know that feeling intimately. Mine on the narrowboat nearly ended with me chucking it into the canal. One thing nobody's...
@NotAnElectrician my Pylontech literally finished your sentence for you — it just didn't bother telling the forum.
Essex Nomad in Batteries & BMS 3 months ago
@LochChild the bit everyone glosses over when migrating from PWM is the charge profile mismatch during transition periods. Your old PWM was essentially a blunt instrument — slam voltage at...
Somerset Nomad in DC-DC Chargers 3 months ago
@LiFePO4Nerd good shout on the minimum current — burned an afternoon troubleshooting that exact thing on my motorhome setup before I twigged. One thing nobody's mentioned yet: make sure your DVCC...
Lived this exact calculation building out my tiny house setup. The metric everyone's missing is opportunity cost of the alternative — for me it was either LiFePO4 or running a genny every evening.
Brummie in Batteries & BMS 3 months ago
FrostyTrekker | 847 posts | ❄️ Van Life Veteran @KangooDream One thing worth adding to what @Rob1963 and @WattAMess25 have covered — ambient temperature makes a massive difference overnight.
Frosty Trekker in Q&A 3 months ago
@RetiredElectrician74 worth flagging that the DNO paperwork is genuinely the headache nobody warns you about properly.
Thommo9 in Inverters & Chargers 3 months ago
Noticed something a bit daft happening with my setup lately — DESS is only kicking the charger in for a minute or two every quarter hour, even when the battery's crying out for a proper top-up...
Smithy in Inverters & Chargers 3 months ago
For parallel Epoch B12460s I'd set the DVCC charge voltage limit to 14.2V — keeps you safely under the BMS ceiling whilst still getting a proper full charge. The Epochs tolerate 14.6V but running...
CE_Builds in Batteries & BMS 3 months ago
Been scratching my head over this one and wondered if others have hit the same wall. Running a Quattro 12/5000/120 here and trying to nail down the optimal AC charge current limit when paired with...
Roger Jackson in Batteries & BMS 3 months ago
Classic! Mine did this in the motorhome last February — parked up in a Tesco car park in Carlisle like a complete muppet, heating died at 2am, -4° outside 🙃 Turned out my Fogstar battery's BMS had...
Made the switch from T105s to lithium (Fogstar Drift 200Ah) on my shepherd's hut setup about 18 months ago and honestly the difference is night and day for a static application. The T105s were...
Paul Cross in Batteries & BMS 3 months ago