Makita DC18RE Manual page 3

Charging
This charger can charge LXT and CXT battery alternatively.
1. Plug the battery charger into the proper AC voltage source.
Charging lights will flash in green color repeatedly.
2. Insert the battery cartridge into charger until it stops adjusting
to the guide of charger. (Fig.1)
For LXT battery, the terminal cover of the charger can be
opened with inserting and closed with pulling out the battery
cartridge.
3. When the battery cartridge is inserted, the charging light
color will change from green to red and charging will begin.
The charging light will keep lighting up steadily during
charging. One red charging light indicates charged condition
in 0–80% and red and green ones indicate 80–100%. The
80% indication mentioned above is approximate value. The
indication may differ according to battery temperature or
battery condition.
Series Voltage
10.8V–
CXT
12 V (max.)
14.4 V
LXT
NOTE:
• The battery charger is for charging Makita-battery cartridge.
Never use it for other purposes or for other manufacturer's
batteries.
• If charging light may flash in red color, battery condition is as
below and charging may not start.
– Battery cartridge from just-operated tool or battery cartridge
that has been left in a location exposed to direct sunlight for
a long time.
Cooling system
• This charger is equipped with cooling fan for heated battery in
order to enable the battery to prove its own performance. Sound
of cooling air comes out during cooling, which means no trouble
on the charger.
• Yellow light will flash for warning in the following cases.
– Trouble on cooling fan
– Incomplete cool down of battery, such as, being clogged with
dust
Conditioning charge (for LXT battery only)
Conditioning charge can extend the life of battery by automatically
searching the optimum charging condition for the batteries in every
situation.
The battery employed in the following conditions repeatedly
requires "conditioning charge" to prevent fast wear out. In that
case, yellow light lights up.
Number of cells
3
6
4
8
5
18 V
10
4. With finish of charge, the charging lights will change from red
and green ones to green one.
5. Charging time varies by temperature (10°C (50°F)–40°C
(104°F)) that battery cartridge is charged at and conditions of
the battery cartridge, such as a battery cartridge which is new
or has not been used for a long period of time.
6. After charging, remove the battery cartridge from charger and
unplug the charger.
NOTE:
• The charger does not charge two batteries at the same time but
charges one by one.
Li-ion battery cartridge
according to IEC61960
BL1015, BL1016
BL1020B, BL1021B
BL1040B, BL1041B
BL1415
BL1415N, BL1415NA
BL1430, BL1430B
BL1440
BL1450
BL1460A, BL1460B
BL1815
BL1815N
BL1820, BL1820B
BL1830, BL1830B
BL1840, BL1840B
BL1850, BL1850B
BL1860B
– Battery cartridge that has been left for a long time in a location
exposed to cold air.
• When the battery cartridge is too hot, charging does not begin
until the battery cartridge temperature reaches the degree at
which charging is possible.
• If the charging light flashes alternately in green and red color,
charging is not possible. The terminals on the charger or battery
cartridge are clogged with dust or the battery cartridge is worn
out or damaged.
The battery can be charged in spite of the yellow warning light.
But the charging time will be longer than usual in this case.
Check the sound of cooling fan, vent on the charger and battery,
which can be sometime clogged with dust.
• The cooling system is in order although no sound of cooling fan
comes out, if the yellow warning light will not flash.
• Always keep clean the vent on charger and battery for cooling.
• The products should be sent to repair or maintenance, if the
yellow warning light will frequently flash.
1. Recharge of battery with its high temperature
2. Recharge of battery with its low temperature
3. Recharge of full charged battery
4. Over-discharge of battery (continue to discharge battery
inspite of down of power.)
The charging time of such battery is longer than usual.
Capacity (Ah) Charging time
(Minutes)
1.5
2.0
4.0
1.3
1.5
3.0
4.0
5.0
6.0
1.3
1.5
2.0
3.0
4.0
5.0
6.0
22
30
60
15
15
22
36
45
55
15
15
24
22
36
45
55
3