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3.3 Charging the BHT
The main battery may not be fully charged for shipment. Please charge the main battery to full before
using the handy terminal. You may use the Charging Cradle or USB cable to charge the handy
terminal.
3.3.1 Charging Time
Main battery
The main battery powers the handy terminal to work. It takes approximately 2.1 hours to charge
an empty 3050 mAh battery to full. The status indicator above the screen will light up in red while
charging and will turn blue when charging is complete.
Sub-battery
The sub-battery is mounted on the circuit board and used for retaining data when the main battery
is replaced or when it is removed.
It may take approximately ten minutes to fully charge an empty sub-battery after installing the
main one. Do not remove the battery until the charge is completed so as to retain data properly.
3.3.2 Charging Temperature
Charging the battery at room temperature (18 - 25 ° C) is recommended in order to deliver optimal
performance. Please note that battery charging stops when ambient temperature drops below 0 ° C or
exceed 40 ° C. The temperature to stop charging may vary according to the practical operating
environment.
3.3.3 Operation on Battery Power
When 802.11a/b/g/n/ac, GSM/GPRS/EDGE/WCDMA/UMTS/HSDPA/HSUPA/HSPA+/LTE, Bluetooth
v5.1&v2.1+EDR and GPS are all enabled on battery power, the main battery level will drop down
substantially. Prolonged use of the display and continued scanning of barcodes will also affect battery
level.
In order to avoid the unexpected system shutting down when the battery level is low, we suggest that
you keep a fresh battery for replacement at all times, or connect the BHT to an external power.
Remove the battery from the BHT or the Cradle then store in a cool and dry place if not using the BHT
for an extended period of time.
Storing a fully charged or depleted (unable to turn on the BHT) battery for long periods time may
deteriorate the performance and life of the battery.
For long-term storage, storing the battery at the 50% of the power level is recommended.
During long-term storage, charge the battery cartridge fully once a year in order to maintain the battery
performance. When fully charge, allow the battery to discharge down to the recommended level before
restoring.
The battery may swell over the years depending on usage environment. This is a characteristic of a
lithium-ion battery and is not safety hazard.
3.3.4 Charging Status of the BHT
The Charge status of the BHT is shown on the status indicator above the display screen.
Status indicator
Charging
Indication
Red, solid
Red, blink
Green, solid
Description
Charging the BHT
Charging error
Charging complete
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