Check pen cart battery regularly

‌ Regular inspection of pen cart battery is very important to ensure their safety and service life. ‌

Frequency of periodic inspections
The recommended frequency for regular checking of pen cart battery is ‌ every 3 months ‌‌1. This can ensure that the battery is in good working condition under normal use, and potential safety hazards are discovered and dealt with in time.

Check methods and procedures
‌ Appearance check ‌ : Check the battery case for damage, distortion, or leakage.
‌ Voltage and internal resistance test ‌ : Use a professional battery tester to check whether the voltage and internal resistance of the battery are within the normal range. In general, the internal resistance range of pen cart battery should be between 0-200mΩ, and the voltage range should be between 0-19.99V ‌2.
‌ Battery management system (BMS) check ‌ : Ensure the normal operation of the battery management system, can prevent overcharge, overdischarge, short circuit and other safety problems ‌3.
‌ mechanical stress test ‌ : Perform a mechanical stress test to ensure that the battery will function properly under expected use and foreseeable misuse ‌3.
Battery safety specifications and standards
The safety specifications for pen cart battery are very strict, such as the UL 8139 standard requiring an assessment of whether the battery management system is working properly, preventing the risk of foreseeable consumer misuse, and mechanical stress testing, etc. ‌3. These specifications are designed to ensure the safety of batteries during use.

Through regular inspection and maintenance, the service life of pen cart battery can be effectively extended, while ensuring the safety of users.