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7 Before Starting Work
￭ Use of parts that are not authorized or approved by STIHL
may cause serious or fatal injury or property damage.
– STIHL recommends that only identical STIHL
replacement parts be used for repair or
maintenance.
￭ To reduce the risk of electric shock when charging:
– Unplug the charger from the wall outlet before
inspecting or cleaning the charger.
– Regularly check the electrical contacts of the
charger and ensure that the insulation of the power
cord and plug are in good condition and show no
signs of aging (brittleness), wear or damage.
– Have a damaged power supply cord replaced by an
authorized STIHL servicing dealer.
￭ To reduce the risk of short circuit and fire:
– Keep the guides on the AP Adapter free of foreign
matter. Clean as necessary with a dry cloth or soft,
dry brush.
￭ Improper storage can result in unauthorized use, damage
to the backpack battery and an increased risk of fire,
electric shock and other personal injury or property
damage. Before storing:
– Remove the connecting cord from the power tool or
AP Adapter.
– Remove the AP Adapter from the power tool or
charger.
– Store the battery indoors in a dry, secure place out
of the reach of children and other unauthorized
users.
– Never store the battery in damp or corrosive
environments or in conditions that could lead to the
corrosion of its metal components.
– Never store the battery plugged into the AP Adapter
or power tool.
– Never store the battery in a metal container or in a
container with metal objects (e.g., paper clips, nails,
coins, keys).
0458-794-8221-C
All manuals and user guides at all-guides.com
7.1
Before starting work:
► Check the battery status, @ 8.2.
► Fully charge the battery, @ 8.2.
► Clean the battery, @ 8.2.
► Position the connecting cord, @ 11.1.
8.1
Read and follow the safety precautions on the battery and
charger and the warnings and instructions in this manual,
@ 5.1, and in the charger's manual. To reduce the risk of
short circuit, which could lead to electric shock, fire and
explosion, make sure the charger and its components are
dry and not damaged; operate the charger indoors at an
appropriate ambient temperature.
A typical household electric circuit is between 15 and 20
amps. A single STIHL AL 500 charger draws approximately
4.8 amps. A single AL 300 charger draws approximately
4.4 amps. To reduce the risk of fire from overloading an
electrical circuit:
► Ensure the electrical system is rated to withstand the
► Charge multiple batteries one at a time or on separate
7 Before Starting Work
Preparing the Backpack Battery for Operation
8 Charging the Backpack Battery
Setting up the Charger
WARNING
WARNING
expected electrical draw before charging your battery.
circuits, unless you know your circuit can handle the total
expected draw from multiple chargers.
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