Nokia 2660 User Manual page 55

What if your battery is not authentic?
If you cannot confirm that your Nokia battery with the hologram
on the label is an authentic Nokia battery, please do not use the
battery. Take it to the nearest authorized Nokia service point or
dealer for assistance. The use of a battery that is not approved by
the manufacturer may be dangerous and may result in poor
performance and damage to your device and its enhancements. It
may also invalidate any approval or warranty applying to the
device.
To find out more about original Nokia batteries, visit
www.nokia.com/battery.
4. Confirm that the 20-digit code
is valid by following the
instructions at www.nokia.com/
batterycheck.
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