OBJ_BUCH-520-003.book Page 23 Wednesday, October 27, 2010 11:52 AM
The battery is equipped with temperature mon-
itoring that allows charging only in the tempera-
ture range between 0 °C and 45 °C. In this man-
ner, a high battery service life is achieved.
Note: The battery is supplied partially charged.
To ensure full capacity of the battery, complete-
ly charge the battery in the battery charger be-
fore using your power tool for the first time.
The lithium ion battery can be charged at any
time without reducing its service life. Interrupt-
ing the charging procedure does not damage the
Removing the Battery (see figure A)
Press the battery unlocking button and pull out
the battery 15 toward the rear.
Charging Procedure (see figure A)
The charging procedure starts as soon as the
mains plug is plugged into the socket and the
battery is then inserted into the battery charger
Firstly, place the battery 15 as shown in the fig-
ure onto the front of the battery charger ( ) and
then press the battery 15 down at the rear ( ).
To remove the battery, proceed in reverse order.
Due to the intelligent charging method, the
charging condition of the battery is automatical-
ly detected and the battery is charged with the
optimum charging current, depending on bat-
tery temperature and voltage.
This gives longer life to the battery and always
leaves it fully charged when kept in the charger
Note: The charging procedure is only possible
when the battery temperature is within the al-
lowable charging temperature range, see sec-
tion "Technical Data".
Flashing Battery Charge Indicator 13
The charging procedure is sig-
nalled by a flashing battery
charge indicator 13.
Bosch Power Tools
Continuous Lighting of the Battery Charge In-
Continuous lighting of the
battery charge indicator 13
indicates that the battery is
fully charged or that the tem-
perature of the battery is not within the allowa-
ble charging temperature range, and cannot be
charged for this reason. The battery is charged
as soon as the allowable charging temperature
range is reached.
When the battery is not inserted, continuous
lighting of the battery charge indicator 13 indi-
cates that the mains plug is inserted in the sock-
et and that the battery charger is ready for oper-
With continuous or several repetitive charging
cycles without interruption, the charger can
warm up. This is not meaningful and does not in-
dicate a technical defect of the battery charger.
A significantly reduced working period after
charging indicates that the battery is used and
must be replaced.
The "Electronic Cell Protection (ECP)" protects
the lithium ion battery against deep discharging.
When the battery is run down or discharged, the
garden product is shut off by means of a protec-
tive circuit: The blade no longer moves.
Do not continue to press the
On/Off switch after the garden
product has been automatically switched off.
The battery can be damaged.
Do not insert the battery until the cordless
trimmer is completely assembled.
Ensure that the cordless trimmer is assem-
bled in the following order:
Mounting the Blade Guard (see figure B)
Place the blade guard 11 on the trimmer head 9.
Hook the blade guard onto the trimmer head
and push it toward the rear.
Press the blade guard downward until se-
curely latched (click).
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