User's Manual

16
Using battery
The performance of the battery is affected by various
factors, including wireless network settings, signal
intensity, environment temperature, the function or
settings that you select, accessories and the mode of voice,
data or other applications that you select.
To keep the battery in optimum performance, please
follow the rules below:
• The charging of new battery or batteries which haven’
t been used for long time may be longer;
• Keep the battery in room temperature when it is
being charged;
• It is normal that the charging time becomes longer
after long time using. If the call time becomes shorter
and charging time becomes longer after normal
charging, you need to change a qualified battery.
Unqualified battery may damage your phone and
cause danger.
• If the battery is left unused for too long time or the
battery voltage is too low, it takes certain period of