常见问题

While minor heating is normal during use or charging, excessive heat is highly damaging. It leads to the evaporation and drying of the electrolyte, which reduces charging efficiency, deforms the plates, and increases internal resistance. This process accelerates the oxidation of mechanical components and can burn out the plates or separators, ultimately resulting in reduced capacity and a shorter lifespan.

During charging, a portion of electrical energy is converted into heat. Excessive heat may be caused by an over-high charging current, internal short circuits, or low electrolyte levels in sealed batteries, which increases internal resistance. Battery aging and the failure of the charger to maintain constant voltage at the end of the cycle can also cause temperatures to rise, leading to swelling or battery failure.

Swelling is usually caused by "Thermal Runaway" resulting from severe water loss. Specific causes include overcharging (excessive float current or charger parameter drift), high ambient temperatures, internal short circuits, or inconsistent safety valve pressure. Using mismatched battery sets or damaged casings can also lead to deformation.

This typically happens when the discharge rate is too fast—specifically when the current exceeds 0.5C for a long time. If a battery's capacity is too small for the motor's power requirements, the plates must react violently to keep up, causing the casing to heat up and damaging the battery's long-term health.