Is it normal for the battery charger to get really hot?

It’s perfectly normal for a your battery charger to get quite warm, but it should not get excessively hot.

Moderate warmth during charging is expected, especially in the constant current phase (charging starts at a high current—usually the max safe current for the battery. This phase continues until the battery reaches a preset voltage, typically around 4.2V per cell).

Higher temperatures may occur if there’s poor ventilation around the charger. Always ensure the charger is at least 30cm away from all other objects, and charge in a well-ventilated room. A garage, a shed or outside on a porch is ideal.

If the charger is too hot to touch comfortably or emits a burning smell, it could indicate a problem. Discontinue use and contact us immediately.