User Manual

18
Preparation
5
Place the BHT on the charger.
Point
After placing the BHT on the charger
when using the BHT for the first time or
when left unused for long periods of time,
do not remove from the charger for
approximately 3 hours (standard
rechargeable battery cartridge) or 6
hours (large-capacity rechargeable
battery cartridge).
6
The BHT indicator LED will change
to green when charging is complete.
Point
 Charging takes approximately 3 hours
(standard rechargeable battery
cartridge) or 6 hours (large-capacity
rechargeable battery cartridge).
 An only slightly discharged battery
cartridge should take this time to
become fully charged.
Note:
The BHT is equipped with a back-up battery used to back-up the internal memory and
calender clock. The internal back-up battery is charged first when charging is
commenced.
Do not remove the BHT from the charger for at least 2 days when using the BHT for the
first time or when using after long periods of time.
The LED
illuminates in
red and
charging
begins.
Step 1 Charging
Red LED ON
Green LED
ON