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The phone shall only be connected to products that
bear the USB-IF logo or have completed the USB-IF
compliance program.
Do not put a battery into a microwave oven, dryer or
high-pressure container.
Use only authorized chargers.
Do not puncture the battery with a sharp object such
as a needle.
When the battery is disposed, be sure it is non-
conducting by applying vinyl tape to the (+) and (-)
terminals.
Do not drop, throw, or subject the handset to rough
treatment.
Stop using the battery if abnormal heat, odor,
discoloration, deformation, or abnormal condition is
detected during use, charge or storage.
Do not use your handset with a damaged or deformed
battery.
Do not solder the battery directly.
Remove the battery whose life cycle has expired from
equipment immediately.
The earpiece may become warm during normal use.
Also, the handset itself may become warm while the
battery is being charged.
When a handset is in vibration mode, the vibration may
cause the handset to move.
Be careful not to place the handset near heat sources
(such as a heater).