0458-722-8621-A
23
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12 Using a Battery Harness
12.1.2 Putting on and Adjusting the Harness
WARNING
To reduce the risk of personal injury, the operator must be 
able to remove the backpack battery quickly in the event of 
an emergency. In an emergency, open and remove the waist 
belt and chest strap quickly before dropping the battery to 
the ground.
To ensure a proper fit:
► Put the backpack battery on your back.
► Fasten and adjust the waist belt (2) so that it rests 
comfortably but securely on your hips. 
► Fasten the chest strap (1) and adjust it so that it fits 
comfortably but securely across your chest.
► Adjust the harness straps so that the back padding fits 
firmly and securely against your back.
► Thread the end of the waist belt through the loop (3).
► To remove the harness, open the quick-release fasteners 
on the waist belt and chest strap and loosen the harness 
straps by lifting the sliding adjusters.
To help reduce the risk of injury in the event of an 
emergency, practice quickly opening the fastener on the 
waist belt, loosening the shoulder straps and removing the 
battery.
NOTICE
To avoid damage, ease the battery to the ground when 
practicing. Do not allow the battery to drop to the ground and 
do not throw it.
12.2 STIHL Battery Backpack
12.2.1 Mounting the AP Battery Bag with Connecting Cord 
inside the Battery Backpack
WARNING
To reduce the risk of injury from tripping or losing control of 
the power tool, always secure the connecting cord with the 
hook and eye fasteners on the cord holder. Position and 
secure the connecting cord so that it will not interfere with 
proper working technique or your ability to maintain control 
of the power tool.
WARNING
Manage the cord to prevent it from contacting the cutting 
attachment or catching on objects, which could cause you to 
lose balance or control of the power tool, resulting in serious 
personal injury and property damage.
WARNING
Never transport metallic, pointed or sharp objects in the 
battery bag or battery backpack. They may bridge the 
electrical contacts in the battery and cause a short circuit 
once a battery is inserted.