0458-725-8621-B
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7 Battery Safety
■ The battery contains safety features and devices which, if 
damaged, may allow the battery to generate heat, rupture, 
leak, ignite or explode. 
– Never use or charge a malfunctioning, damaged, 
cracked, leaking or deformed battery.
– Never open, disassemble, crush, drop, subject to 
heavy impact or otherwise damage the battery.
– Never expose the battery to microwaves or high 
pressures.
– Never insert objects into the battery's cooling slots.
■ High temperatures may cause the battery to generate 
heat, rupture, leak, ignite or explode, resulting in severe or 
fatal personal injury and property damage. Exposure to 
temperatures outside the recommended temperature 
range may also reduce battery life and performance.
■ To reduce the risk of personal injury and property damage 
in the event the battery emits smoke, an unusual smell or 
feels unusually hot while using, charging or storing:
– Immediately discontinue using or charging the 
battery. Contact the authorities in the event of fire or 
explosion.
■ To reduce the risk of a short circuit, which could lead to 
electric shock, fire and explosion:
– Never bridge the battery terminals with wires or 
other metallic objects.
– Keep a battery that is not in use away from metal 
objects (e.g., paper clips, nails, coins, keys).
– Never transport or store the battery in a metal 
container.
– Store the battery indoors in a dry room.
– Never store the battery in damp or corrosive 
environments or in conditions that could lead to 
corrosion of its metal components.
– Protect the battery from exposure to corrosive 
agents such as garden chemicals and de-icing salts.
– Protect the battery from exposure to conductive 
liquids such as salt water.
– Do not attempt to repair, open or disassemble the 
battery. There are no user-serviceable parts inside.
■ Leaking battery fluid is potentially harmful and can cause 
skin and eye irritation, chemical burns and other serious 
personal injury.
– Avoid contact with skin and eyes.
– Use an inert absorbent such as sand on spilled 
battery fluid.
– Never heat the battery above 212 °F 
(100 °C).
– Never incinerate or place the battery on 
or near fires, stoves or other high-
temperature locations.
– Use and store the battery only within an 
ambient temperature range of 14°F to 
122°F (-10°C to 50°C).
– Never store the battery in direct sunlight 
or inside a vehicle in hot weather.
– Keep the STIHL AR series backpack 
battery dry. Protect it from rain, water 
and other liquids.
– Attach the rain cover to the STIHL AR 
series battery before starting work in rain 
or in very damp conditions.
– If a STIHL AP series battery has been 
exposed to rain during work, remove it 
from the battery bag and allow it to dry 
indoors. Make sure it is completely dry 
before charging or use.
– Never immerse any STIHL battery in 
water or other liquids.