ISOtunes Link 2.0 Mode D'emploi page 9

Recharging Lithium-Ion Battery
The Lithium Battery Pack comes fully installed. Please make sure the Battery Pack
Cable is plugged in to the Battery Pack Port.
The Lithium Battery Pack holds a 50 hour charge.
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Slide the Battery Cover Latch (9) "up" When using the Lithium Pack, always make
towards the headband to release the sure the Battery Pack's cable is plugged into
Battery Cover. the Battery Pack Port in the battery com-
partment (please note, the battery comes
fully installed).
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