KX-TCA355RU - Panasonic PBX Service Manual (repair manual). Page 11

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Insert the battery as shown. Close the cover as indicated by the arrow. Close the clasp to secure the cover in place. 

At the time of shipment, the battery is not charged.
Please charge the battery for at least 5.5 hours before initial use.

• When the battery has been completely charged, the charge indicator will change from red to green.
• It is normal for the PS and charger to feel warm while the battery is charging.
• Keep devices sensitive to magnetic fields away from the charger.

After your Panasonic battery is fully charged [at 25

°C]:

• Operating time may be shortened depending on usage conditions and ambient temperature.
• The battery cannot be overcharged.
• The battery will drain even while the unit is turned off.
• The PS can receive calls while charging.

• Battery consumption increases when the PS is used out of range. If "

" flashes, turn off the PS.

• Clean the handset and the charger contacts with a soft, dry cloth once a month. Clean more often if the unit is subject to

grease, dust or high humidity. Otherwise the battery may not charge properly.

• Read "Important Notice Concerning the Correct Use and Charging of Ni-MH Batteries".

The batteries needs to be charged when "

 " flashes, or the alarm sounds every one minute during a conversation.*

* If the low battery warning occurs during a conversation, you can continue the call for a few minutes, after which the call will be
automatically disconnected .

While in use (TALK)

17 hrs approx.

While not in use (Standby)

270 hrs approx.