Denso BHT-1400-CE Series Hardware User Manual page 23

BHT-1400-CE Series
4.
Connect the dedicated AC adapter to the CU
(power inlet connector) and wall socket.
− Note −
5.
Place the BHT in the CU.
− Caution −
The backup battery backs up the internal memory and calendar clock, and first charges when
− Note −
charging begins.
Charging for the backup battery takes approximately 2 days.
Do not remove the battery from the BHT for at least 2 days when using the BHT for the first time or
after unused long periods.
12
The CU-AU1-14 does not charge the battery while the host computer is suspended
if powered via a USB. The CU starts charging again when resuming from the
suspend mode. Use a dedicated AC adapter to supply power to avoid influence of
the host computer suspension. Suspend mode is a power saving function to pause
the computer while not in use.
Do not remove the BHT from the CU at least 3 hours when using the BHT for the
first time or after unused long periods.
The LED illuminates in red
when charging begins.
Red LED ON