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Safety instructions
Intended use
Intended use includes:
• having read this instruction manual, especially the chapter “Safety
instructions” on page 2,
• using the devices within the operating conditions and limitations
described in this instruction manual.
“Improper use” means using the devices other than as described in this
instruction manual, or under operating conditions which differ from
those described herein.
Safety instructions for the Lithium-Polymer rechargeable battery
The BA 300 is a Lithium-Polymer rechargeable battery. If abused or
misused, this rechargeable battery may be damaged. Please under-
stand 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 and gas hazard.
Do not heat above
70°C/158°F, e.g. do
not expose to sunlight
or throw into a fire.
Only charge rechargeable
batteries with the appro-
priate Sennheiser chargers.
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. Only charge rechargeable
batteries at ambient tem-
peratures 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
rechargeable batteries to
your specialist dealer.