User's Manual

Loading the Battery Cartridge
Before the first use of the BHT, be sure to load the battery cartridge as shown
below. The battery cartridge is not loaded in the BHT when shipped from the
factory.
(1) Charge the rechargeable battery cartridge.
(2) Turn the BHT upside down.
(3) As shown below, slide the battery cartridge into the BHT until it clicks into
place. (To remove it, press the release button after making sure that the
BHT power is off.)
Battery cartridge
Release button
• The BHT integrates a rechargeable backup power source which backs up
the memory and calendar clock in the BHT when no battery cartridge is
loaded or the voltage level of the battery cartridge drops below the
specified level. The backup power source is automatically charged by the
battery cartridge.
When you first load the battery cartridge after purchase or you load it
after leaving the BHT unused for a long time, do not remove the battery
cartridge for 10 minutes or more after that loading. This is for charging
the memory backup source integrated in the BHT.
• If you will not be using the BHT for a long time, take the specified
procedure given in "Battery Replacement Notes."