5
(1.3) Rechargeable Batteries
Here are some other recommendations for getting the longest life from the internal
battery.
General
Usage
Fully charge the battery before using it.
Avoid full discharge of the battery if possible. Li-Ion batteries are
maintenance-free, and the battery will last longest when operating
between 30 and 80 percent charged.
Charge the battery using the included power adapter with the
power off in a cool environment indoors. The battery will not charge
if its temperature is below 32°F/0°C.
If the product has been used continuously, charging will not begin
until the buildup of heat on the battery has cooled down.
Charge the battery completely after each use.
Storage For best product longevity, do not store at exceedingly hot (greater
than 90°F/32°C) or exceedingly cold (less than 32°F/0°C)
temperatures.
It is acceptable to leave your sound system plugged in. This will not
overcharge the battery.
If you leave the battery level low and do not charge it for 3 months,
it may permanently lose capacity.
Repair If the battery fails to charge, check your fuse near the power cable
input. If your fuse is intact and it still will not charge, contact Alto
Professional at altoprofessional.com.
Disposal Bring the unit to a recycling center or dispose of in accordance with
local ordinances.
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