AKG Acoustics CU4000 Affect the accuracy of the remaining-capacity display, Flashing orange, Onds

4 Charging
Partially discharging the BP 4000 many times may reduce its capacity (memory effect) or	4.6 Recovery Cycle
affect the accuracy of the remaining-capacity display.
The recovery cycle performed by the CU 4000 charger reduces the memory effect and re -
stores the accuracy of the remaining-capacity display.
After approx. every 16 partial-discharge cycles, the device display will indicate "Err.Acc" and
"--.-" instead of the hour display. (The remaining battery capacity will only be indicated by
the bar graph.) Once you insert the device into the charger, the RECOVER LED will start
flashing orange.
These messages request you to start a recovery cycle as soon as possible. The charger will
not perform a recovery cycle before you have pressed the RECOVER key for at least 3 sec-
onds.
• In most cases, the "Err.Acc" or “Rec.Acc” message in the device display is only a re-	Note:
quest to perform a recovery cycle rather than an error message!

•However, if the "Err.Acc" message comes up again when you power the device up after a successful recovery cycle (the RECOVER LED will not flash orange on inserting the device), there may be a communication problem between the device and the BP 4000. In this case, please contact your nearest AKG Service Center.

CHARGE	RECOVER	Status	Action
orange	---	The inserted device	---
		is being checked.
		The test takes about
		4 to 10 seconds.
red	>orange<	The BP 4000 is	Press and hold the
		being charged, and	RECOVER key next
		a recovery cycle is	to the flashing
		recommended.	RECOVER LED.
red	>green<	The BP 4000 is	Hold the RECOVER
		being charged and	key down for at
		the RECOVER LED	least 3 seconds.
		indicates the
		RECOVER key is
		being held down.
red	red	The recovery cycle	Release the
		has started. The	RECOVER key.
		BP 4000 is charged
		for a few minutes if
		required.
>red/orange<	red	Recovery cycle: the	---
		BP 4000 is being
		discharged.
red	red	Recovery cycle: the	---
		BP 4000 is being
		charged for the first
>red/orange<	red	time.
		Recovery cycle: the	---
		BP 4000 is being
		discharged.

Table 4: Recovery cycle

CU 4000 23