ShortCircuit

ShortCircuit

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@ShortCircuit

batteries enthusiast from Kent.

Kent, England Joined Mar 2025
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Overview Reviews (0) Posts (14)
Opportunity loads - turned on with no solar!
@VanKen 😂 been there — woke up to a BMS low voltage alarm at 2am because I'd manually overridden the Shelly and forgot about it.
in Batteries & BMS 2 weeks ago
Narrowboat 12v system keeps tripping after fitting the new inverter
@HamishMitchell yeah the cable run length matters massively too — boats always seem to have these awkward long runs from the battery bank to the inverter location.
in Marine & Boat 3 weeks ago
Victron MPPT keeps dropping to float too early — anyone else had this?
@DefenderAdventure finish your thought mate, got cut off there 😄 @HelenThompson worth checking your absorption voltage and time settings too.
in Solar Panels & Controllers 2 months ago
Unusual DESS behavior after upgrading Cerbo from version 3.66 to 3.75
Bit of a weird one and wondering if anyone else has hit this. Upgraded my Cerbo to 3.75 last week — no other changes to the system — and DESS has been acting oddly ever since.
in Batteries & BMS 2 months ago
MPPT charger: Error code: #119 - Settings data lost
Seen this twice on my 100/50 — both times after a firmware update rather than cold temps. Worth checking if it coincides with an update via VictronConnect. Fix is straightforward: Go into...
in Solar Panels & Controllers 2 months ago
Victron BMV-712 showing different SOC to my BMS — which one do I trust?
Had this exact headache last year with my 280Ah Fogstar Drift cells. Both were reading differently and I didn't know which to believe for weeks. Short answer: neither is gospel, but the BMV-712 is...
in Batteries & BMS 2 months ago
Probleme bei Cerbo GX Auswertung mit kombinierter AGM + LiFePO4 Installation
@VDH_Boats the Cerbo really struggles here because it wants a single battery type for its SOC calculations.
in Monitoring & System Design 3 months ago
Anyone else found their garden office battery barely lasting through a cloudy week in winter?
Same issue hit me hard last January. Running a 200Ah LiFePO4 (Fogstar Drift) and even with a 400W panel array it was genuinely touch and go by day four of solid grey skies.
in Garden Offices 4 months ago
Industrial Microgrid Design: Solar VFD Loads First, Export Excess PV to Generator-Based Grid
Good thread. One thing I'd add from messing around with battery-backed VFD setups — soft-start sequencing matters a lot when you've got multiple drives on the same bus.
in Emergency & Backup Power 4 months ago
Feed-in limit (MaxFeedInPower) not respected in "Total of all phases" mode with DC-coupled PV
Been scratching my head over something similar with my setup and wondering if anyone else has hit this wall. Running a three-phase Multiplus-II arrangement (48V) with a Cerbo GX and a couple of...
in Batteries & BMS 4 months ago
Anyone else running LiFePO4 in a Transit-based van without a separate BMS enclosure?
Fitted a pair of Fogstar Drift 100Ah cells last spring and just strapped the BMS to the side of the battery box with some VHB tape.
in Motorhome & Campervan 5 months ago
Charging a Leaf off a van solar setup — anyone actually done this long-term?
The numbers are the killer here — a Leaf pack is what, 24-40kWh depending on gen? Your 400W array on a good UK day might net you 1.5-2kWh realistically.
in Motorhome & Campervan 6 months ago thumb_up 2
Anyone else finding their MPPT controller undersized after adding a second panel?
Yeah been through this exact headache. The 75/15 is rated 15A output — two 200W panels in parallel at 12V system is potentially pushing ~33A of panel current before the controller even does its...
in Solar Panels & Controllers 6 months ago thumb_up 7
Anyone else running a Victron Orion-Tr Smart in non-isolated mode? Getting a weird voltage drop issue
Something worth adding that I haven't seen mentioned yet — check the input voltage threshold settings in the VictronConnect app.
in DC-DC Chargers 6 months ago thumb_up 3