Denso BHT-1400-CE Series Hardware User Manual page 24

6.
The LED indicator changes to green when charging is complete.
Charging takes approximately 3 hours.
− Notes −

Charging takes approximately 12 hours If the power is supplied via the CU-AU1-14 from the

device connected to the USB port.
The time required for full-charge may be shortened for the battery of less discharged capacity.

The indicator LED flashing in red indicates the following causes. The proper action stated below

must be taken.
・Abnormal temperature of the battery is detected.
- Charge the battery under the proper temperature (0~40°C)
- Avoid places where there are objects generating heat nearby or exposed to direct sunlight.
- Stop charging and replace the battery if there are no objects generating heat nearby.
・Charge terminal contact failure
Wipe any dirt or dust from the charge terminals as described in "Chapter 6 Maintenance" – "5.4
Daily Maintenance".
・Charging is not completed after the specified time has elapsed.
Retry charging with the designed AC adopter if the BHT is connected to a non-powered USB
connection.
・The battery is broken or the battery life has ended.
Replace the battery.
Barcode / 2D Code Handy Terminal
The LED illuminates in green
when charging completes.
Green LED ON
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