Yeah @DustyHiker's right about the cold Voc spike — caught me out too with my garden office setup.
Worth actually running the numbers before assuming you're safe.
@BurnGlen yeah the battery bank is the bit I'm dying to know about too. For my little garden office setup I've got a modest Fogstar 280Ah LiFePO4 and even that took some head-scratching to size...
Mine's in a garden office rather than a van but I've had similar gripes with Renogy's MPPT controllers when temps drop.
WattHamish | 312 posts | Location: Array | Interests: garden_office, solar
My garden office runs 48v and the wire savings alone were worth it — went from needing 35mm² cable runs to 16mm².
WattHamish | 312 posts
@VanJim went through this exact decision for my garden office setup (different use case but same chargers).
@FormerMariner24 yeah had exactly this with my garden office setup. Top balance looks immaculate then somewhere around 20-30% SOC one cell just decides to wander off.
Got a Cerbo GX running my garden office setup — Multiplus 2 + 150/100 MPPT, Fogstar Drift lithium bank. The VRM portal is where it earns its money for me.
@RustyTinker genuinely curious how the rewinding went — that's the bit that puts me off. Permanent magnet motors are one thing but rewinding an induction motor for low-RPM generation sounds like a...
@Rob1963 good shout on firmware — worth adding that if you're running SCS (Shared Current Sense) alongside SVS, double-check the Skylla shows up properly under Devices in the Cerbo dashboard...
Yeah, frustrating isn't it. I've not had WiFi drop on mine but I switched to the MT50 display cable connection instead — bit annoying running the cable but rock solid reliable.
Distributed layout's definitely the way. I've got my solar setup split between the garden office and main house rather than one massive panel, and it's saved me proper headaches when...
Yeah, £200's tight but workable if you're smart. Depends what you're actually charging though — phone and laptop?
