KX-TCD725EM-5(86~100) 01.10.24 14:40 Page 87

Important Notice Concerning the Correct Use and Charging of Ni-MH (Ni-Cd) 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 (Ni-Cd) 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 (Ni-Cd) batteries by charging and discharging several times one after another.

Ni-MH (Ni-Cd) batteries can also self-discharge. This self-discharge depends on the ambient temperature. At temperatures under 0°C, the self-discharge will be the lowest. High humidity and high temperatures support the self-discharge. Also long-term storage will lead to self-discharge. A dead Ni-MH (Ni-Cd) battery should not be disposed of normally. They contain toxic heavy metal hydride (cadmium) and therefore should be recycled.

Useful Information Chapter 7

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Panasonic kx-tcd725em operating instructions Useful Information Chapter