Important Notes - AKG CU 4000 Mode D'emploi

1. To prevent data communication between the device/BP 4000 battery pack and the
CU 4000 from being interrupted, make sure
• never to remove the device/battery pack from the charger during the battery test
(CHARGE is lit orange; refer to section 4.1 above);
• never to reinsert the same device/battery pack into the charger any sooner than
5 seconds after you removed the device form the charger (this is the time the bat-
tery pack takes to reset data communication).
Interrupting data communication during the battery test or reset periods may cause
charger malfunction (e.g., incorrect charging status display).
2. The BP 4000 and CU 4000 are rugged enough so that
• you can remove the BP 4000 at any time before a charging or recovery cycle is
completed;
• you can charge the BP 4000 at any time, even before it is completely discharged;
• you can run a normal charging cycle (i.e., without pressing the RECOVER key) even
if the RECOVER LED is flashing orange.
The device will be fully functional in all the above cases.
If, for instance, an "emergency" arises and you need a transmitter quickly, charging the
BP 4000 for about ten minutes gives you up to two hours of battery life.
However, if the charger proposes a recovery cycle (RECOVER flashing orange, device
display showing "Err.Acc") the remaining battery capacity will not be indicated in hours
but only as a bargraph (at reduced accuracy). If you develop a habit of partially charg-
ing or discharging a device, the capacity and thus the useful life of the BP 4000 will de-
crease somewhat (memory effect).
3. To ensure both a long useful life of the BP 4000 and the highest possible accuracy of
the remaining-capacity display, be sure
• to completely discharge the BP 4000 every time, i.e., not to charge the BP 4000 be-
fore the battery warning appears in the transmitter and receiver displays (see also
the transmitter and receiver manuals);
• to charge the BP 4000 fully every time, i.e., not to remove it from the charger be-
fore the charging cycle is completed;
• to run a recovery cycle as soon as possible every time the RECOVER LED starts
flashing orange;
• to charge each new BP 4000 as per Table 3.
4. If you insert a device with dry or standard rechargeable batteries into the charger, the
charging cycle will be stopped immediately after the battery test. (CHARGE will be lit or-
ange for a few seconds and start flashing red.)
Although there is virtually no risk of damaging the device or charger, it is good practice
not to insert devices using dry or standard rechargeable batteries into the charger.
5. Avoid charging the BP 4000 at temperatures below +5°C or above +40°C. At these
temperatures, the charging cycle will not start and the CHARGE LED will start flashing
red.
CU 4000
4 Charging

4.7 Important Notes

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