These are accessible without extra tools:
- Lower the AC Input Current Limit: This reduces how much power the inverter draws from the campsite supply, preventing overloads or voltage drops that cause tripping.
- On your GX device (e.g., Cerbo or Color Control): Go to Menu > Settings > System Setup > Inverter/Charger > AC Input Current Limit. Start by setting it to 5-10A (depending on your campsite breaker—don’t exceed it). Test and increase gradually if stable.
- In VictronConnect (if connected via Bluetooth): Connect to the inverter, go to Settings > AC Input > Current Limit, and adjust downward.
- This should allow charging at a slower rate without tripping. Monitor via the GX or app to see if it stays connected.
- Monitor AC Input Values: Before and during charging, check the actual voltage and frequency.
- On GX: Go to Overview or Device List > Inverter > AC Input. Note the voltage when it trips—if it’s dipping below ~180V (default low limit for 230V systems), that’s the trigger.
- If frequency is off (should be 50Hz in Morocco), note deviations.
- Temporarily Disable Loads: Turn off any AC loads in your system while charging to minimize draw on the supply. Use inverter mode for essentials if needed.
Advanced Configuration for Unstable Power
For deeper tweaks like handling distorted or weak AC, you’ll need a computer and the free VEConfigure software (download from victronenergy.com). This requires access via VRM (your portal) if you have a GX device connected to the internet—no physical adapter needed for remote config.
- Enable Weak AC Mode: This makes the charger more tolerant to poor waveform quality (common with unstable grids), though it may reduce charging efficiency slightly.
- Log into VRM portal > Device List > Your Inverter > Remote VEConfigure.
- Download the config file (.rvsc).
- Open in VEConfigure software on your PC > Charger tab > Check “Weak AC” box.
- Save and upload the file back via VRM.
- Reboot the system and test.
- Disable UPS Function: UPS mode makes the inverter picky about AC quality for fast switching. Disabling it allows wider voltage/frequency tolerance (e.g., accepts down to ~180V more reliably without quick rejects).
- Same process as above: In VEConfigure > Grid tab > Uncheck “UPS Function.”
- Also check “Accept Wide Input Frequency Range (45-65Hz)” if frequency is the issue.
- Enable Dynamic Current Limiter (if using a generator-like unstable supply): This gradually ramps up charging to avoid sudden drops.
- In VEConfigure > Inverter tab > Check “Dynamic Current Limiter.”
After changes, monitor for 10-15 minutes. If it stabilizes, gradually increase charge current.
Other Workarounds if Adjustments Don’t Help
- Use Solar or DC Charging: If your system has solar panels, prioritize that to charge batteries without AC. Or use a DC-DC charger from your vehicle alternator.
- Hardware Add-Ons: Consider a portable voltage stabilizer/regulator (e.g., 2-3kVA auto-transformer) between the campsite outlet and your input to boost/stabilize voltage. Or a longer/thicker extension cable if voltage drop is from wiring.
- Test the Supply: Plug in a simple device (e.g., lamp) to the campsite outlet and measure voltage with a multimeter under load. If it’s consistently below 180V, the supply might be too poor—try another site or outlet.
If none of this works, share more details like your exact Victron model, measured AC voltage/frequency, or error codes from the GX/VRM for better troubleshooting. Victron’s community forum is also great for similar issues.