Battery and charger information
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If a battery is being used for the first time or if the battery has not been used for a 
prolonged period, it may be necessary to connect the charger, then disconnect and 
reconnect it to begin charging the battery. If the battery is completely discharged, 
it may take several minutes before the charging indicator appears on the display or 
before any calls can be made.
Safe removal. Always switch the device off and disconnect the charger before 
removing the battery.
Unplug the charger from the electrical plug and the device when not in use. Do not 
leave fully charged battery connected to a charger, since overcharging may shorten 
its lifetime. If left unused, a fully charged battery will lose its charge over time.
Avoid extreme temperatures. Always try to keep the battery between 15°C and 
25°C (59°F and 77°F). Extreme temperatures reduce the capacity and lifetime of 
the battery. A device with a hot or cold battery may not work temporarily. Battery 
performance is particularly limited in temperatures well below freezing.
Do not short-circuit. Accidental short-circuiting can occur when a metallic object 
such as a coin, clip, or pen causes direct connection of the positive (+) and negative 
(-) terminals of the battery. (These look like metal strips on the battery.) This might 
happen, for example, when you carry a spare battery in your pocket or purse. Short-
circuiting the terminals may damage the battery or the connecting object.
Disposal. Do not dispose of batteries in a fire as they may explode. Dispose of 
batteries according to local regulations. Please recycle when possible. Do not 
dispose as household waste.
Leak. Do not dismantle, cut, open, crush, bend, puncture, or shred cells or batteries. 
In the event of a battery leak, prevent battery liquid contact with skin or eyes. If 
this happens, flush the affected areas immediately with water, or seek medical 
help.