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Rechargeable Battery Pack Safety
With very little care, you can optimize the battery life and maximize the lifespan of
the battery. Most importantly, use only the equipment in its ideal operating
temperature (-10°C ~ 50°C / 14°F ~ 122°F) – do not leave it in a hot trunk during the
summer.
 Important Terms to Understand
“Battery life” means the time the equipment will run before it must be recharged
(sometimes this is also called “playtime” or “runtime”).
“Battery lifespan” means the total amount of time your battery will last before it
must be replaced.
 Using the Equipment for the FirstTime
Be sure to fully charge (approx. 4 hours) the equipment when charging the
equipment for the first time.
 Long-Term Storage & Maintenance
If you are putting away the battery for more than three months, it is
recommended that the battery should be stored separately and fully
Do not use the power adapter that isn’t made for the equipment. Supplying
the equipment with inappropriate voltage may cause harm to the battery or,
even worse, burn the equipment.
Toprevent possible hearing damage, do not listen at high volume levels for
long periods