FSA 90 R
English
6
it is damaged. In case of doubt, have the 
machine checked by your STIHL 
servicing dealer.
Battery
WARNING
Do not place the battery on or near fires, 
stoves or in other high-temperature 
locations. Do not place the battery in 
direct sunlight or store it inside a vehicle 
in hot weather. Doing so may cause the 
battery to generate heat, rupture or 
ignite. Using the batteries in this manner 
may also result in a loss of performance 
and a shortened battery life.
In case of fire: stay clear of any vapors 
or gases generated, taking wind 
direction into account. If possible without 
danger, remove battery from the vicinity 
of the fire. In principle, cooling the 
battery or extinguishing the fire with 
water is possible. It is preferable to 
extinguish the fire with a multipurpose 
dry chemical fire extinguisher. As for any 
fire, evacuate the area and fight the fire 
from a safe distance. Once the fire has 
been extinguished, the area should be 
monitored (fire watch) in case of a flare-
up, until the battery has cooled 
sufficiently. Restrict access to the area 
until completion of clean-up. Do not 
touch the burnt battery or any spilled 
liquids. Use inert absorbent to absorb 
spilled liquids.
WARNING
Use STIHL batteries only with STIHL 
power tools, and charge them only with 
STIHL chargers. Replace battery with 
STIHL battery only. Use only genuine 
STIHL rechargeable batteries.
Charge the battery before use.
WARNING
To reduce the risk of corrosion and 
damage to the battery and power tool, 
never leave a wet battery in the power 
tool after use – allow both to dry 
separately.
WARNING
Do not open, drop, hit or damage 
battery. Never insert objects into the 
battery's cooling slots, since they may 
damage the battery. The battery 
contains safety features and devices 
which, if damaged, may cause the 
battery to generate heat, rupture or 
ignite. Never use or charge a defective, 
damaged, cracked, deformed or leaking 
battery.
Immediately discontinue use of the 
battery if, while using, charging or 
storing, it emits an unusual smell, feels 
hot or appears abnormal in any other 
way.
WARNING
Fluid may leak from the battery if it is 
damaged or is not used properly – avoid 
contact with the skin! Leaking battery 
fluid can cause skin irritation and 
chemical burns. In the event of 
accidental contact, immediately rinse 
thoroughly with mild soap and water. If 
fluid gets into your eye(s), do not rub 
your eye(s) but rinse water over the 
open eye(s) for 15 minutes at least. Also 
seek medical attention immediately.
WARNING
Never bridge (short circuit) the battery 
terminals with metallic objects, since this 
may damage the battery and possibly 
cause a fire. Keep a battery that is not in 
use away from metal objects (e.g. nails, 
coins, jewelry). Do not use metal 
containers for storing or transporting 
batteries.
Store the battery out of reach of children 
in a cool and dry area away from direct 
sunlight and excess heat or cold (14 °F 
– 122°F (-10°C – +50°C)).
Charger
Use only original STIHL chargers.
Risk of fire, explosion 
and/or burns, including 
chemical burns. Do not 
disassemble, crush, heat 
above 212 °F (100 °C), 
expose to fire or inciner-
ate. Never expose the 
battery to microwaves or 
high pressures.
Use and store the bat-
tery only within a 
temperature range from 
14 °F (-10 °C) up to no 
more than 122 °F 
(+ 50 °C). Protect the bat-
tery from direct sunlight.
Do not immerse the bat-
tery in fluids. With respect 
to use of the power tool in 
the rain, refer to the 
instruction leaflet/manual 
for the type of battery 
being used.