Microlog dBX battery maintenance guidelines

Summary

SKF Microlog dBX CMVA90 units are supplied with one of two battery pack models: 
CMAC 9005 or CMAC 9206. 

• Microlog CMVA 90 units with serial numbers starting with 2508xxx and manufactured before August 2025 are fitted with the CMAC 9005 battery pack. 
• Units manufactured from August 2025 onwards are equipped with the CMAC 9206 battery pack.

Both battery packs are rechargeable Lithium-Ion batteries that provide up to 8 hours of continuous data collection. Charging is performed directly within the instrument, eliminating the need for external chargers.

Battery health maintenance guidelines

Guideline	Note
Do not leave the battery at full charge (100%) for extended periods.	Slow charging is activated once the battery reaches 80% charge.
Avoid using the battery until it is fully depleted. Recharge it before it reaches 0% to help preserve battery health.	An automatic shutdown procedure is triggered when the remaining battery level reaches 5%, preventing a forced shutdown at 0%.
Avoid charging the battery in extreme temperature conditions, whether excessively hot or cold.	Charging is not recommended in environments where the temperature is below 10°C or above 45°C.
After 6 months of use, swap Battery 1 and Battery 2 to balance their usage and extend overall battery life.	Refer to the Quick Start Guide for instructions on how to swap the batteries.
If the device will not be used for an extended period, remove the battery. Ensure it is charged to at least 80% before removal, and recharge it every 30-45 days to prevent deep discharge.
If the battery is completely drained, it may enter hibernation mode, preventing it from charging or powering on. To recover, connect the device to a charger and allow it to charge continuously for 8 to 12 hours.

Contacting SKF Technical Support Group

For further assistance please open a support case using the Technical Support group's self-help portal at www.skf.com/cm/tsg. Once your support case is submitted, a technician will contact you to begin working on your issue. For urgent issues we are available at these times by phone:

• Monday through Friday, 5:00 a.m. to 4 p.m. Pacific Time - 
  Phone: [phone] within the US or [phone] outside the US.
• Monday through Friday, 8:00 a.m. to 4:00 p.m. Central European Time - 
  Phone: [phone].
• Monday through Friday, 7:30 a.m. to 4:30 p.m. India Standard Time -
  Phone: [phone].