Update a Mesa 3 Battery for Use in a Mesa 4 Tablet

11 Jun 2024

The Mesa 4 uses the same battery as the Mesa 3 (JSPN 28000). You can use a Mesa 3 battery in a Mesa 4 tablet if you have updated the battery firmware to version 7A. The Mesa 4 cannot recognize a battery with firmware older than version 7A. (The battery that is included with your Mesa 4 will work with no additional battery firmware updating. It comes from the factory with the latest battery firmware.) The battery firmware update must be completed with the battery installed in a Mesa 3 Windows device. You cannot update the battery firmware using a Mesa 4 device.   

To update the battery firmware,

  1. Install the battery you want to update in a Mesa 3 tablet.
  2. Update the firmware on the Mesa 3, which also updates the battery firmware.
  3. After the firmware update finishes, verify the battery firmware version.
  1. Shut down the Mesa 3. (The red LED must be off.)
  2. Remove the battery.

The battery can now be used in a Mesa 4 tablet.

Reviewed & Approved: AH, 11June2024