Nokia N79 - Manual (Page 174)

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
authorised 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.
For additional information, refer to the warranty and
reference leaflet included with your Nokia device.
174
Battery and charger information