Why does the charging battery get hot?
1 Answers
It may be due to a short circuit in one of the battery cells or a mismatch between the battery and the charger. Here are the relevant explanations: 1. Mismatch between the battery and charger. Many households have electric vehicles of different brands, and during use, chargers are often mixed. 2. Issues caused by the charger. Ordinary chargers without pulse function, let alone negative pulse depolarization function, usually cannot maintain a constant voltage in the later stages of charging. This can cause the battery voltage to exceed the allowable value, leading to excessive gas generation, water loss, and heating. 3. The battery might have a short circuit. Use a multimeter to measure the voltage of each battery. If one has a very low voltage, it indicates a short circuit. 4. Problems with the battery itself. Aging batteries, increased internal resistance, dried-up electrolyte, or internal short circuits can cause heating.