Denso BHT-400B-CE - Manual (Page 59)

Chapter 2 Getting Started the BHT and System Menu
2.4.1 Replacing the Backup Battery
Before proceeding to the replacement procedure below, it is recommended that you save important
data into the FLASH folder or upload it to the host computer.
(1) Turn the BHT upside down.
(2) Disconnect the hand belt.
(3) Slide the release button in the direction of the arrows to remove the battery cartridge cover.
Battery cartridge cover
Hand belt
Release button
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