Operation; Battery Meter; Charging The Battery Pack - Ryobi RLM4852L Operator's Manual

lawn. The average lawn should be between 38 mm and 51
mm during cool months and between 51 mm and 70 mm
during hot months.
To adjust the blade height
■ Stop the mower, allow the blade to stop rotating and
remove the isolator key before making adjustment.
■ The mower can be set to 7 cutting heights between 19
mm and 73 mm.
■ Using the cut height between 19 and 36 mm will
shorten the battery duration.
■ To raise the blade height, grasp the height adjustment
lever and move it toward the back of the mower.
■ To lower the blade height, grasp the height adjustment
lever and move it toward the front of the mower.

OPERATION

Do not allow familiarity with products to make you
careless. Remember that a careless fraction of a
second is sufficient to inflict serious injury.
Always wear eye protection. Failure to do so could
result in objects being thrown into your eyes resulting
in possible serious injury.
Do not use any attachments or accessories not
recommended by the manufacturer of this product. The
use of attachments or accessories not recommended
can result in serious personal injury.
Always inspect mower for missing or damaged parts
and blade for damage, uneven, or excessive wear prior
to use. Using a product with damaged or missing parts
could result in serious personal injury.

BATTERY METER

See figure 7.
Since the mower battery is shipped in a low charge
condition, the battery must be charged before use. The
battery has four LED lights to indicate battery capacity.
These lights will illuminate when the button is pressed.
If your LED lights illuminate, the battery is 100% charged
and ready for use. Three lights indicate a 50-80% charge.
English (Original Instructions)
WARNING
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Two lights indicate a 30-50% charge.
If one light illuminates, the battery will soon require
charging. It is recommended that the battery be charged
at this point. The battery is at 5-30% charge when one
light illuminates.
If no light illuminates, the battery must be charged
immediately before use. There is less than 5% of battery
charge remaining if none of the lights are on.
NOTE: When none of the lights are on, you must stop
the mower and charge the battery immediately, or it will
reduce the life of the battery.

CHARGING THE BATTERY PACK

See figure 7-8.
Always remove the isolator key and store it in a separate
location out of the reach of children when the mower is
charging or not in use. Failure to remove the isolator
key may result in accidental starting or unauthorised
use and cause serious personal injury.
The lawn mower comes with a maintenance-free, spill-
free, sealed 48 volt battery pack.
■ The battery charger is only for use indoors, it must not
be used in wet or damp environments. Do not operate
the charger near petrol/gasoline or other explosive
gasses or vapours.
■ The battery should be charged in a cool, dry place. The
battery charger should be operated in temperatures
between 0 ºC and 40 ºC.
■ Charge the battery pack only with the charger
provided.
■ The battery pack may be charged while it is connected
to the mower, or while it is disconnected from the
mower.
■ Allow at least 8-10 hours of charge time before initial
use of the mower.
■ For optimal performance, recharge the battery every
2 months even when it is not in use and prior to each
usage.
■ The charger may remain connected to the battery
pack any time the mower is not in use.
■ To improve battery life, store battery indoors in a
controlled climate.
■ The battery does not have to be fully discharged
before recharging.
■ Two to three initial charging/discharging cycles may
be required to achieve maximum run time/capacity.
■ When fully charged, the battery can be safely stored in
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