Loading the Rechargeable Battery Cartridge
Before the first use of the BHT, be sure to load the rechargeable battery car-
tridge 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.)
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 at least 10 minutes after that loading. This is for charging the memory
backup source integrated in the BHT.
Battery cartridge
Release button
