First issue in my Vinfast VF6 with portable charger.

Faulty Portable EV Charger — Description & Risks A portable EV charger becomes “faulty” when one or more of its critical components — cable, connector, internal circuitry, or safety mechanisms — fail to operate safely or consistently. Typical symptoms and failure modes include: Damaged or deteriorated charging cable or plug: frayed or cracked insulation, exposed wires, loose or deformed plug or connector pins. Such damage may cause intermittent charging or no charge at all, and significantly increases the risk of electric shock or fire. Poor or unstable electrical contact / loose connection: if the plug does not seat firmly into the EV’s inlet (or wall socket), the charger may overheat, heat up its cords or plug, or repeatedly connect and disconnect — potentially damaging both the charger and the EV’s battery-management system. Internal hardware malfunction or electrical faults: failures in internal relays, temperature sensors, insulation breakdown, or grounding issues. This may cause overheating, short circuits, or charging sessions that abort unexpectedly. Overheating, burnt smell or visible melting: if the charger or its cables become abnormally hot during charging, or you notice a burning plastic smell or discolouration, that's a serious safety hazard indicating internal faults or overloading. Charging inefficiency, inconsistent or slow charging: due to increased resistance (from damaged cables), poor connections, or degraded components — leading to longer charging times or incomplete charging cycles. Incompatibility or wrong voltage/current supply: if the charger is not properly matched to the EV or to the outlet supply (for example, using an uncertified or unapproved charger), charging sessions may fail or result in battery stress, and such equipment may lack built-in safety protections. Consequences of using a faulty portable charger The EV may fail to charge, or charging may stop unexpectedly. Risk of damage to the EV’s battery, charging port, or internal electronics. Overheating or electrical faults may lead to fire, smoke, or electric shock, posing serious safety hazards. Irregular or inefficient charging reduces convenience and may reduce battery lifespan over time. Using uncertified or damaged chargers may void warranties or insurance coverage.