Important safety instructions
MM 550-X
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Safety instructions for the Lithium-Polymer battery pack
If abused or misused, the battery pack may leak. In extreme cases, it may
even present an explosion or fire hazard.
Please understand that Sennheiser does not accept liability for damage
arising from abuse or misuse.
•
Heat generation
•
Fire development
•
Explosion
•
Smoke or gas development
Keep away from children.
When not using the
product for extended
periods of time, remove
the battery pack from the
product.
Immediately remove the
battery pack from an obvi-
ously defective product.
Only use battery packs rec-
ommended by Sennheiser.
Dispose of the battery
pack at special collection
points or return it to your
specialist dealer.
Switch battery pack-
powered products off
after use.
Only charge the battery
pack with the appropriate
Sennheiser chargers.
When not using the
battery pack for extended
periods of time, charge it
regularly (about every
3 months).
Only charge the battery
pack at ambient tempera-
tures between 10°C/50°F
and 40°C/104°F.
Do not heat above 70°C/
158°F, e.g. do not expose
to sunlight or throw into
a fire.
Do not mutilate or
dismantle.
Do not continue to use
a defective battery pack.
Store charged battery
packs so that the termi-
nals cannot contact each
other – danger of shorting
out/fire hazard.
Do not expose to moisture.
