Fault
LEDs on the
battery
Cause
Remedy
The blade is blunt or
worn.
► Sharpen and balance the blade.
The resistance at the
blade is too great.
► Set a higher cutting height.
► Mow shorter grass.
The battery gets
stuck when fitting
it into the battery
compartment.
The guides or electric
contacts in the battery
compartment are
dirty.
► Clean the lawn mower.
Charging fails to
start after fitting
the battery into
the charger.
1 LED illumina‐
tes red.
The battery is too
warm or too cold.
► Leave the battery inserted in the char‐
ger.
Charging starts automatically as soon as
the permissible temperature range is
reached.
The grass has
not been cut
cleanly or the
lawn is yellow.
The blade is blunt or
worn.
► Sharpen and balance the blade.
The resistance at the
blade is too great.
► Set a higher cutting height.
► Mow shorter grass.
The STIHL app
cannot find the
battery with .
The Bluetooth
®
radio
interface on the bat‐
tery or on the mobile
device is disabled.
► Enable the Bluetooth
®
radio interface on
the battery and on the mobile device.
The distance between
the battery and the
mobile device is too
great.
► If the battery still cannot be found with
the STIHL app: consult a STIHL specia‐
list dealer.
20.2
Product Support and Assis‐
tance on Use
Product support and assistance on use are avail‐
able from STIHL servicing dealers.
For contacts and other information, please visit
https://support.stihl.com or www.stihl.com.
21 Specifications
21.1
STIHL RMA 253.0 Lawn
Mower
–
Permissible battery: STIHL AP
–
Weight without battery: 22.5 kg
–
Maximum grass catcher box capacity: 55 l
–
Cutting width: 51 cm
–
Speed: 3,200 rpm
For information on the battery life see
21.2
Blade
–
Minimum thickness a: 1.6 mm
–
Minimum width b: 55 mm
–
Sharpening angle c: 30°
21.3
STIHL AP battery
–
Battery technology: lithium-ion
–
Voltage: 36 V
–
Capacity in Ah: see rating label
–
Energy content in Wh: see rating label
–
Weight in kg: see rating label
–
Permissible temperature range for operation
and storage: + 10 °C to + 50 °C
English
21 Specifications
40
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