Is it a problem to charge an electric vehicle for 18 hours?
2 Answers
Charging an electric vehicle for 18 hours is problematic and can easily lead to fire accidents. Generally, electric vehicle charging should not exceed 8 hours. Pay attention not to charge the electric vehicle for extended periods, and replace aging batteries promptly; do not modify the battery, alter electrical wiring, or remove speed limit devices without authorization. Below is additional information on precautions during electric vehicle charging: 1. Check whether the power source and battery have electric fluid, and if not, replenish it before charging; 2. Try to avoid charging the battery at night, and the charging time should not be too long, generally not exceeding 8 hours; 3. Avoid placing the electric vehicle charger on seats, sponges, or other places prone to heat and fire; 4. Do not pile flammable or explosive materials near the electric vehicle.
I used to commute by electric bike and sometimes took the lazy way out by charging it overnight or even for 18 hours straight, which almost led to an accident. Once, after charging for too long, the battery pack overheated severely, and the casing even softened—it scared me to death. Later, I asked a technician at the repair shop, and he said lithium batteries are most vulnerable to overcharging. Generally, 6 to 8 hours is enough. Charging for 18 hours is definitely too long and could damage the battery's internal chemical structure, increasing the risk of short circuits or fires. He recommended using the original charger, which has an automatic shut-off feature, and avoiding off-brand products. Always charge in a well-ventilated area, not in bedrooms or near flammable materials. Make it a habit to plug in before bed and unplug upon waking—this ensures safety, peace of mind, and can extend the battery's lifespan by at least a year. Safety first—don’t follow my lazy example.
