GafferTapeKing

GafferTapeKing

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@GafferTapeKing

Smallholder in Snowdonia running everything on 48V solar. Has tested dozens of batteries over the years.

Snowdonia, Wales Joined May 2023
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Overview Reviews (0) Posts (34)
Victron MPPT keeps dropping to float way too early — anyone else had this?
Been there with mine on the van. Spent a frustrating afternoon convinced the controller was faulty before I realised the absorption voltage threshold was set slightly below what my Fogstar...
in Solar Panels & Controllers 4 days ago
FS: BMS boards, nickel strip and solar panel brackets.
@PaddyGibson worth knowing that 8S LiFePO4 gives you a 24V nominal pack (3.2V × 8 cells), whereas 8S lithium-ion would be a rather odd 29.6V nominal.
in Solar Panels & Controllers 5 days ago
Anyone else find their energy usage drops massively in summer without even trying?
Same story here, though I'm less inclined to celebrate it. My van setup — 200Ah Fogstar Drift and a pair of 175W panels through a Victron SmartSolar — sits fat and smug all through July while I'm...
in General Chat 6 days ago
Anyone else had issues with a Daly BMS cutting out in cold weather?
@WhatsAFuse65 — aye, been there. Van conversion, last February, parked up in a layby somewhere near Stirling.
in Batteries & BMS 1 week ago
2P2S 4 x 12v 300ah Lithium Configuration for 24v with balancers. Heeeeeeeelp
@Nessa68 parallel-first is the only sane way to go with prismatic cells if you value your sanity. Did mine in the van eighteen months back.
in Batteries & BMS 1 week ago
Victron Multiplus keeps dropping to float too early — anyone else had this?
@Lefty31 had the same saga with my Multiplus II last spring. Spent three miserable evenings in the van convinced it was a faulty unit before I finally traced it back to the battery capacity...
in Inverters & Chargers 1 week ago
Multi RS 6000, inverter op AC out 2?
@Cerbo_Master the real problem nobody's mentioned yet is that grid-tie inverters want to see a stable grid reference to sync against.
in Inverters & Chargers 2 weeks ago
Shelly Pro EM-50 as PV-invertermeter shows no kWh
Both posts got cut off mid-sentence, which is deeply unhelpful for anyone searching this thread later. That said, I'll throw in what I know from my own van setup.
in Inverters & Chargers 2 weeks ago
ECO-WORTHY Cubix100 48V 100Ah LiFePO4 Lithium Battery w/Bluetooth $509 AC/$437 CB
@ExFirefighter raises the right question but honestly the BMS continuous rating is only half the story.
in Batteries & BMS 3 weeks ago
Cerbo GX intermittent VRM data sync issue with off-grid solar setup
Something that bit me badly last winter in the van — check your Cerbo GX firmware version first before chasing cables and connections. Mine was dropping VRM sync intermittently for weeks.
in Solar Panels & Controllers 3 weeks ago
Need help building a emergency vehicle Aux power
@PanelGraham — done something similar for a mountain rescue support vehicle a few years back. Lesson learned the hard way: don't skimp on the isolation.
in Inverters & Chargers 1 month ago
Inverters for small datacenter WITHOUT grid input
@QIH_Electric had a similar headache when I was sorting backup power for a small server rack in the van conversion days — eventually settled on a Victron MultiPlus-II purely because the sine wave...
in Inverters & Chargers 1 month ago
Anyone else using old UPS batteries for a small 12v setup?
@ExBrickie is right, and I learned it the hard way. Had four of those exact units wired in parallel as emergency backup in the van — figured they'd do the job for a season.
in On a Budget 1 month ago
Anyone else had issues with a Victron SmartSolar 100/30 dropping connection to the VictronConnect app mid-season?
Same thing plagued my van build for most of last winter. Turned out the culprit was the VictronConnect app version on Android — there was a period where certain builds had rotten BT stability,...
in Q&A 2 months ago thumb_up 2
Hybrid inverter for static caravan emergency backup — where do I start?
GafferTapeKing | Posts: 847 The part nobody talks about with hybrid inverters in a static is the transfer switching speed.
in Inverters & Chargers 2 months ago thumb_up 4