Charging The Rechargeable Battery Cartridge (Using The Cu-8001/8021/8011); Rechargeable Battery Cartridge Loaded In The Bht - Denso BHT-8000 User Manual

5.5 Charging the Rechargeable Battery
Cartridge (using the CU-8001/8021/8011)
You may charge Ni-MH battery cartridges either loaded in the BHT or all by themselves. When charging
them all by themselves, be sure to follow the instructions given in Section 5.5.2.
Service Life of Ni-MH Battery Cartridge:
Ni-MH batteries used in the battery cartridge will gradually deteriorate during the repeated cycles of
charging and discharging due to its properties, even under normal use. When the battery's operating
time becomes extremely short even if it has been charged for the specified hours, replace the battery
cartridge with a new one. Generally, it is necessary to replace the battery cartridge after it has
undergone approx. 200 cycles of charging and discharging operation.
Memory Accumulation:
If a Ni-MH battery undergoes many cycles of imperfect charging and discharging (e.g., one-hour
recharge followed by one-hour use), the operating time may become short before the service life is
really expired, just as the battery memorizes the use conditions. It is called "Memory Accumulation."
The memory accumulation can be avoided by discharging a Ni-MH battery fully before charging
(called "refresh"). For refreshing the battery cartridge, use the CU-8001/8021/8011 or C-600.
If left unused for a long time, the battery cartridge may have been inactive. Charge and discharge such
a battery cartridge several times before use.

5.5.1 Rechargeable Battery Cartridge Loaded in the BHT

(1) Turn the CU-8001/8021/8011 on. The POWER LED comes on.
(2) Place the BHT loaded with a rechargeable battery cartridge onto the CU-8001/8021/8011.
The CU-8001/8021/8011 lights the CHG1 LED and starts charging. The charging time is approx. 8
hours.
Upon completion of charging, the CHG1 LED starts flashing at 2-second intervals.
(3) Remove the BHT from the CU-8001/8021/8011.
BHT-8000
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CU-8001/8021/8011