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| English
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Product Features
The numbering of the product features refers to the
illustration of the battery charger on the graphics
page.
1
Battery pack*
2
Green battery charge indicator
3
Charging compartment
*Accessories shown or described are not part of the
standard delivery scope of the product. A complete
overview of accessories can be found in our acces-
sories program.
Technical Data
Operation
Starting Operation
Observe the mains voltage!
The voltage of the
power supply must correspond with the data giv-
en on the nameplate of the battery charger. Bat-
tery chargers marked with 230 V can also be op-
erated with 220 V.
Charging Procedure
The charging procedure starts as soon as the
mains plug of the battery charger is plugged into
the socket outlet and the battery
1
is inserted into
the charging compartment
3
.
Due to the intelligent charging method, the charg-
ing condition of the battery is automatically detect-
ed and the battery is charged with the optimum
charging current, depending on battery tempera-
ture and voltage.
This gives longer life to the battery and always
leaves it fully charged when kept in the charger for
storage.
Note:
The charging procedure is only possible
when the battery temperature is within the allowa-
ble charging temperature range, see “Technical
Data” section.
Meaning of the Indication Elements
Flashing Battery Charge Indicator 2
The charging procedure is signalled
by a
flashing
battery charge indica-
tor
2
.
Continuous Lighting of the Battery Charge Indi-
cator 2
Continuous lighting
of the bat-
tery charge indicator
2
indicates
that the battery is fully charged
or
that the temperature of the
battery is not within the allowable charging temper-
ature range, and cannot be charged for this rea-
son. The battery is charged as soon as the allowa-
ble charging temperature range is reached.
When the battery is not inserted,
continuous light-
ing
of the battery charge indicator
2
indicates that
the mains plug is inserted in the socket and that the
battery charger is ready for operation.
Troubleshooting – Causes and
Corrective Measures
Battery Charger
L18 M-B
Art. No.
9 082 408
Battery charging voltage
(automatic voltage detec-
tion)
V
10.8 – 18
Charging current
A
2.0
Allowable charging
temperature range
°C
0 – 45
Charging time for battery
capacity, approx.
(80%) 100%
– 1.3–1.5 Ah
min
(35)
50
– 2.0 Ah
min
(50)
65
– 2.6–3.0 Ah
min
(60)
95
– 4.0 Ah
min
(95)
125
– 5.0 Ah
min
(120)
150
Number of battery cells
3 – 10
Weight according to EPTA-
Procedure 01:2014
kg
0.50
Protection class
/
II
Cause
Corrective Measure
Continuous lighting of the battery charge indi-
cator 2
No charging procedure possible
Battery not (properly)
inserted
Properly insert battery into
battery charger
Battery contacts con-
taminated
Clean the battery contacts
(e.g. by inserting and re-
moving the battery several
times) or replace the bat-
tery
Battery pack defective Replace the battery
Battery charge indicator 2 does not light up
Mains plug of battery
charger not plugged
in (properly)
Insert mains plug (fully) in-
to the socket outlet
Socket outlet, mains
cable or battery
charger defective
Check mains voltage,
have charger checked if
necessary by an author-
ised after-sales service
centre for BTI power tools
OBJ_BUCH-2834-001.book Page 14 Wednesday, April 20, 2016 9:53 AM
