Panasonic KX-TD7580 - Manual (Page 18)

18
Important Information
Battery Information
After your Panasonic batteries are fully charged:
● Battery life may be shortened depending on usage conditions, such as:
– when talking in speakerphone mode, using headset and ambient temperature.
● 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 batteries may not
charge properly.
● The batteries cannot be overcharged.
● Read "Important Notice Concerning the Correct Use and Charging of Ni-MH Batteries."
Replacing the Batteries
If " " flashes after a few telephone calls even when the handset batteries have been fully
charged, it is time to replace the batteries with new ones (p. 2).
Before replacing the batteries, turn the power off to prevent memory loss (p. 3). Make sure you charge
the new batteries for about 15 hours in order to display the battery strength prompt correctly.
Caution:
To reduce the risk of fire or injury to persons, read and follow these instructions.
1. Use only the batteries specified.
2. Do not use non-rechargeable batteries.
3. Do not mix old and new batteries.
4. Do not dispose of the batteries in a fire. They may explode. Check with local waste management
codes for special disposal instructions.
5. Do not open or mutilate the batteries. Released electrolyte is corrosive and may cause burns or
injury to the eyes or skin. The electrolyte may be toxic if swallowed.
6. Exercise care in handling the batteries in order not to short the batteries with conductive materials
such as rings, bracelets, and keys. The batteries and/or conductor may overheat and cause burns.
7. Charge the batteries provided with or identified for use with this product only in accordance with the
instructions and limitations specified in this manual.
Important Notice Concerning the Correct Use and Charging of Ni-MH Batteries
Batteries, due to their construction, undergo some wear and tear. The lifetime of a battery also
depends on correct maintenance. Charging and discharging are the most important factors. You
should take notice of the following to maintain the life of the battery as long as possible.
Ni-MH batteries have a kind of memory, the "memory effect." If fully charged batteries are used
several times only for 15 minutes in the handset and then recharged, the capacity of the batteries will
be reduced to 15 minutes due to the memory effect. Therefore you should discharge the batteries
completely, i.e. use them in the handset until " " on the display starts flashing. Then recharge
them as described in the manual. After the memory effect has occurred, it is possible to achieve
almost complete capacity of the Ni-MH batteries by charging and discharging several times one after
another.
Operation
While in use (Talk)
While not in use (Standby)
Approx. Ni-MH battery life
Up to 15 hours
Up to 150 hours