When maintaining heated clothing, it’s crucial to recognize when the battery needs replacing to ensure consistent warmth and safety. Here are key indicators that your heated battery may be failing:
1. Reduced Runtime
- Description: If your heated clothing no longer stays warm as long as it used to, even after a full charge, this is a strong sign that the battery is losing its ability to hold a sufficient charge. A notable decrease in runtime indicates that the battery is nearing the end of its life and may need replacement[1][2].
2. Difficulty Charging
- Description: If you notice that the battery is taking significantly longer to charge or fails to reach a full charge, it may be faulty. Overheating during the charging process can also indicate issues with the battery. These symptoms suggest that the battery is deteriorating and might need to be replaced[3][4].
3. Swollen Battery Case
- Description: A swollen or bulging battery case is a clear sign of overcharging or overheating. This physical damage not only indicates that the battery is malfunctioning but also poses safety risks. Replacing the battery promptly is crucial to prevent further issues[2][3].
4. Strange Odor
- Description: If the battery emits an unusual odor, such as a rotten egg smell, it could be leaking sulfuric acid. This odor indicates internal failure of the battery, and it should be replaced immediately to avoid potential hazards[4][5].
5. Age of Battery
- Description: Rechargeable batteries in heated clothing typically last 1-2 years with regular use. If your battery is approaching this age, it is wise to consider a replacement even if it appears to be functioning, to avoid sudden failures[5][6].
6. Inconsistent Heating
- Description: If the heat output from your clothing is uneven or certain areas are not heating as well as others, it may indicate that the battery is not providing consistent power. This inconsistency suggests that the battery is not functioning optimally and may need replacement[3][4].