Been down a similar rabbit hole recently with my Victron setup in the motorhome — trying to get selective shore power charging working without killing the solar input from the MPPT at the same...
Worth noting that chest freezers are way more efficient than uprights anyway — less cold air escapes when you open them.
Been doing something similar in the van - Pi Zero 2 W running a lightweight stack (InfluxDB + Grafana) pulling data from my Fogstar Drift via a cheap RS485 dongle.
Had this exact same issue on my van build with a Fogstar Drift. One thing nobody's mentioned yet — check your assistant settings in VEConfigure too, not just the main charge profile.
@BoatPaddy yeah gonna need you to finish that sentence before anyone can help properly 😄
In the meantime — classic things to check while you're getting that post finished:
What's the battery...
Had this exact issue setting up the ESS on my motorhome build last year. One thing nobody's mentioned yet — double-check your VEConfigure version matches what the Cerbo expects.
Had this exact issue on my van build a couple months back — Android 14 on a Nothing Phone 2.
What fixed it for me: go into Android Settings → Apps → VictronConnect → Permissions and make sure...
BurnBen | 203 posts
Similar thing in my van build — battery just ticking over most of the time between trips. One thing I'd watch with the tiny house setup is temperature.
in Q&A
3 months ago
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@VanSue the usable capacity jump is the bit that gets people — 200Ah LiFePO4 is basically 200Ah you can actually use, not 100Ah you're nervously tiptoeing around.
One thing worth checking: make...
Finally pulling the trigger on a DC-DC charger for the van. Running a 200Ah Fogstar Drift LiFePO4 as my leisure bank, charged from the alternator via a 30A B2B.
@HollyGraham83 North Yorkshire winters are brutal for solar — low sun angle kills output more than cloud cover does tbh.
Few things that helped on my motorhome setup:
Tilt your panels if you can...
@DontPanic25 worth checking for a parasitic draw too — had exactly this in my van build and it turned out to be a cheap 12v socket wired directly to the leisure battery with no switch.
Been running 400W on my van conversion for two years now, and honestly it's worth it if you can manage the setup.
