KX-TCA175RU - Panasonic Telephone Service Manual (repair manual). Page 16

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After your Panasonic battery is fully charged [at 25

°C]:

• Operating time may be shorter than listed above depending on usage conditions and ambient temperature.
• The battery will drain slowly even while the handset is turned off.
• The handset can receive calls while charging.

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

" flashes, turn the handset off.

The battery needs to be charged in the following situations:

• “ 

 “ flashes, and the alarm sounds*1.

• "Charge Battery" is displayed. In this situation, the handset cannot be operated.

*1 If the low battery warning occurs during a conversation, the call will be automatically disconnected one minute after the alarm
sounds.

If "

 "flashes after using the phone for a short time, even when the battery has been fully charged, the battery should be

replaced.
Before replacing the battery, make sure the low battery warning is displayed, then turn off the power to prevent memory loss.
Replace the battery and charge the new battery for about 7 hours.
If you replace the battery before the low battery warnings appears, the battery strength icon may display an incorrect reading. In
this case, use the handset as normal with the new battery installed. When the low battery warning is displayed, charge the bat-
tery for about 7 hours. The battery strength icon will then display the correct reading.

1. Turn the power off to prevent memory loss.
2. Press the notch on the cover firmly and slide it as indicated by the arrow (A).
3. Open the cover and replace the batteries.

• Insert a finger into the side gap to remove the batteries easily (B).

4. Close the cover and charge the handset.

• Please use a Panasonic battery with the service part number HHR-4EPT only.

While in use (Talk)

Up to about 15 h

While not in use (Standby)

Up to about 200 h