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Intended use
Intended use includes
• having read this instruction manual, especially the chapter "Safety
instructions" on page 2,
• using the products within the operating conditions and limitations
described in this instruction manual.
"Improper use" means using the products 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!
Only charge rechargeable
batteries with the appro-
priate Sennheiser char-
gers.
Return defective
devices or exhausted
rechargeable batteries to
your specialist dealer.
Do not short-circuit.
Do not mutilate or
dismantle.
Store the devices/
rechargeable batteries in
a cool and dry place at
room temperature.
In extreme cases, the rechargeable battery may even
present a
• heat hazard,
• fire hazard,
• explosion hazard,
• smoke and gas hazard.
Safety instructions
Do not heat above 70°C/
158°F, e.g. do not expose to
sunlight or throw into a fire.
When not using the
rechargeable battery for
extended periods of time,
charge it regularly (every
6 months for about 1 hour).
Only charge rechargeable
batteries at ambient
temperatures between
10°C/50°F and 40°C/104°F.
Do not charge the recharge-
able battery if the device is
obviously defective.
Do not expose to moisture.
3
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