Sony T39 Cell Phone User Manual


 
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Safe and Efficient Use 129
Battery Information
Charging the Battery
The battery delivered with your phone is not fully charged. We
recommend that you charge the battery for 4 hours before you use the
phone for the first time. If you are charging a new battery, or a battery
that has run out completely, it may take a while before you get any
indication (the top indicator lights up and the battery meter appears in
the display) that the battery is being charged.
Please note that you cannot turn on the phone before the indicator
lights up and the battery meter appears in the display.
The battery can only be charged in temperatures between +5°C
(+41°F) and +45°C (+113°F).
Battery Use and Care
A rechargeable battery has a long service life if treated properly. A new
battery or one that has not been used for a long time could have reduced
capacity the first few times it is used.
The talk and standby times depend on the actual transmission
conditions when using the phone. If the phone is used near a base
station, less power is required and talk and standby times are
prolonged.
Use only Ericsson original batteries and chargers. Using other
batteries and chargers could be dangerous, and the warranty does
not cover product failures which have been caused by use of non-
Ericsson original batteries and chargers.
Do not expose the battery to extreme temperatures, never above
+60°C (+140°F). For maximum battery capacity, use the battery
at room temperature. If the battery is used in low temperatures,
battery capacity will be reduced.
Turn off your phone before removing the battery.
Use the battery for the intended purpose only.
Do not attempt to take the battery apart.
Do not let the metal contacts on the battery touch another metal
object. This could short-circuit and damage the battery.
Do not expose the battery to open flames. This could cause the
battery to explode.
Do not expose the battery to liquid.
Do not allow the battery to be put into the mouth. Battery
electrolytes may be toxic if swallowed.