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Safety instructions
Safety instructions for the lithium polymer rechargeable battery
The BA 300 battery is a lithium polymer rechargeable battery. If
abused or misused, this rechargeable battery may be damaged. Please
understand that Sennheiser does not accept liability for damage
arising from abuse or misuse.
WARNING! In extreme cases, the rechargeable battery may even
present a
•heat hazard
•fire hazard
• explosion hazard
•smoke or gas hazard
Do not heat above
70°C/158°F, e.g. do
not expose to sunlight
or throw into a fire.
Charge rechargeable
batteries only with the
appropriate Sennheiser
charger.
Do not expose to
moisture.
When not using the
rechargeable battery for
extended periods of time,
charge it regularly (every
six months for about one
hour).
Do not short-circuit. Charge rechargeable
batteries only at
ambient temperatures
between 10°C/50°F
and 40°C/104°F.
Do not mutilate or
dismantle.
Do not charge the
rechargeable battery
if the device is obviously
defective.
!
Store the devices/
rechargeable batteries
in a cool and dry place
at room temperature.
Return defective devices
or devices with defective
batteries to your specialist
dealer.