Battery Care - AKG WMS40 CU40 Mode D'emploi

from the transmitter and insert a
rechargeable type.
• No contact between the transmit-
ter and charger.
- Remove the transmitter from the
charging receptacle and reinsert it
as shown in figs. 2 through 4.
- If the status LED continues flash-
ing red irregularly, clean the
charging contacts on the trans-
mitter and those in the charging
receptacle with a soft cloth.
• If normal charging does not start
after about 10 minutes, the bat-
tery is defective.
- Replace the battery.
3. The LED flashes green:
• There is no battery inside the
transmitter and the transmitter is
ON.
- Switch the transmitter off and in-
sert a rechargeable battery.
- Charge the battery.
14

4.3 Battery Care

If you follow the hints below you can
charge the batteries recommended in
section 4.1 at least 500 times with the
CU 40 charger.
1. Discharge the battery after every
10 to 20 charging cycles by switch-
ing the transmitter ON and leaving it
ON for a night (8 to 10 hours).
Important: To avoid totally discharg-
ing the battery and shortening its
useful life, do not leave the trans-
mitter ON for more than 24 hours.
2. If you will not use the transmitter
for up to one month, switch the
transmitter OFF and place it in the
charger.
Leave the charger connected to
power to trickle-charge the battery.
3. If you will not use the transmitter
for more than one month, charge
the battery to capacity, store it sepa-
rately from the transmitter, and dis-
connect the AC adapter from power.
Note: Never charge batteries at temper-
atures below 0°C or above +50°C.
Below 0°C, the chemical reaction for
storing electrical energy will not start.
When charging above +50°C, the
battery may be damaged.
5 Cleaning
To clean the microphone case,
use a soft cloth moistened with
water.