What to Do When the Battery Gets Hot During Charging and the Light Doesn't Turn Green?
2 Answers
Solutions for when the battery gets hot during charging and the light doesn't turn green are as follows: 1. Damaged or mismatched charger: If the light doesn't turn green, the charger might be damaged. It is recommended to try another charger. However, ensure the charger matches the battery, e.g., a 42V battery requires a 42V charger. Using the wrong charger can damage the battery. Alternatively, use a multimeter to monitor the voltage in real-time. If the voltage reaches the battery's maximum but the light still doesn't change, this also indicates a charger issue. 2. Severely aged battery: If the electric vehicle has been used for a long time without a battery replacement, it might be due to severe electrolyte loss (as electrolyte depletes during charging). If electrolyte hasn't been replenished regularly, it will continue to decrease. If detected early, simply adding electrolyte can resolve the issue.
That time when I was charging my car battery, I noticed it was hot to the touch and the light didn’t turn green—really scary! Once when I was younger, the battery heated up so fast it almost started smoking. Luckily, I unplugged it in time to avoid disaster. Later, I learned this could be due to an internal short circuit or overcharging, like if the charger was set wrong or the battery was old. My advice is to stop charging immediately and let it cool down; then check if the charger matches the car model—smart chargers should have protection features. Also, inspect the battery terminals for corrosion or looseness and try cleaning them. If it still doesn’t work, the battery might be damaged and unusable, so head to the repair shop for a new one ASAP. Regular maintenance, like checking the battery voltage periodically, can prevent such issues. Don’t underestimate overheating—it can lead to explosions or fires in severe cases, which is extremely dangerous! Safety first.
