Ever Wondered Why Your EV Charger Suddenly "Jumps the Gun" Mid-charge? And How to Fix It Quickly When it Happens?
During the daily charging process, the charging progress bar is suddenly interrupted, and the power is stuck at 90%, or cuts out entirely. Many owners of NEVs (new energy vehicles) have encountered such troubles when charging.
This phenomenon is commonly known as "jumping gun", which means that the charging gun suddenly stops supplying power and disconnects during charging. It will not only disrupt the car use plan but also hint at hidden safety risks. So, what exactly causes abrupt charging interruption? And how to handle them fast?
Here are common reasons and solutions from Maruikel:
Poor contact between charger and vehicle port
Cause: Loose plug, oxidized ports, dirt, or worn metal contacts create excess resistance, triggering the charger's safety shutoff.
Solution: Unplug and reinsert the charger firmly. Clean ports with anhydrous alcohol, check for bent contacts.
Abnormal temperature (overheat protection)
Cause: High current, poor ventilation, or extreme heat cause the gun/cable to overheat, activating safety safeguards.
Solution: Pause charging and restart after cooling down. Avoid charging in a high-temperature environment and check whether the heat dissipation of the charging equipment is normal.
Charger malfunctions or compatibility issues
Cause: Unstable output, mismatched communication protocols, outdated software, or hardware faults (e.g., broken relays).
Solution: Try a different charger to test. Contact the operator for software updates or repairs.
"Jumping the gun" is not always the charger’s fault, it may also be a problem with the car. But you can minimize human-caused issues by choosing reputable chargers, picking suitable environments, and following proper steps.
1. Turn off your vehicle first.
2. Check the charger/port for damage.
3. Insert the gun firmly into the car’s port until you hear a "click" (lock confirmation). If no click, reinsert.
4. Use the app to start charging after securing the gun.
If it still fails, try another charger or contact the station manager immediately.
