Makita Makstar DC18SD Technical Information

T

ECHNICAL INFORMATION

Models No.

DC18SD

PRODUCT

P 1 / 3

Description

Charger

CONCEPT AND MAIN APPLICATIONS

Cost-effective charger DC18SD has been launched for worldwide owners
of Makita slide-on type 7.2-18V Li-ion and Ni-MH batteries.

1.5 Ah Li-ion Battery can be charged in 30 minutes. (3.0Ah: 60 minutes)
Innovative computer controlled charging system realized most suitable
charge by making the digital communication between charger and battery.
See detailed information as follows.

This charger contains trickle charging function.

Specification

Voltage (V) Cycle (Hz)

110-120
220-240

Output voltage : V
Output current : A

Power Supply Cord: m ( ft )
Net weight: Kg (lbs)

Current (A)

50 - 60
50 - 60

DC 7.2 - 18

Continuous Rating (W)

Input Output

65
65

DC 2.6

NoDouble Insulation

2.0 (6.6)

0.7 (1.5)

H

L

Dimensions: mm (")

Length (L)
Width (W)
Height (H)

Max. Output(W)

W

151 (5-15/16)
183 (7-1/4)

88 (3-1/2)

Cell Voltage: VCapacity: AhCharging time Battery

Approx. 30 min.

Li-ion

Approx. 60 min.

Approx. 40 min.

Ni-MH

Approx. 70 min.

Note: The above figures about charging time may differ from condition to condition on batteries' temperature
or room temperature.

1.5

3.0

2.0

3.3

14.4
18

14.4
18

9.6
12

14.4

9.6

12

14.4 BH1433

BL1415
BL1815

BH1430 / A
BH1830
BH9020 / A
BH1220 / C
BH1420

BH9033
BH9033A

BH1233
BH1233C

P 2 / 3

Repair

[1] Replacing Terminal unit and Terminal cover

1) Turn Charger upside down.

2) Remove four Caps 13 and BT4x20 Tapping screws.
Note: Be careful not to lose Caps 13.

3) Turn Charger over again and remove Charger case complete. (Fig. 1)

4) When replacing Terminal unit, disconnect Connector CN1 and CN2 from Charging circuit and install the new Terminal
unit carefully as follows: (Fig. 2)
Do not pinch Lead wires between the walls of Charger case cover and Charger case complete.
Route Lead wires with Lead wire holder (indicated by gray color in Fig. 2) and Clip.
Connect Connector CN1 and CN2 to Charging circuit securely.
Put the both ends of Compression spring 4 (Part No. 233194-8) to each boss of Charger case cover and Terminal unit
and insert Three pins of Terminal unit into holes of Charger case cover.

Fig. 1 Fig. 2

Pin of Terminal unit

Compression spring 4
(233194-8)

Charger case complete

Charger case cover

5) When replacing Terminal cover;
(1) Remove BT3x10 Tapping screw behind Charger case cover.
(2) Separate Terminal cover from Charger case complete carefully so as not to lose two Compression springs 4
(Part No. 231474-6) behind Terminal cover.
(3) Compressing Compression springs 4 in new Terminal cover, fit the oval wall of Charger case complete into the oval
wall of Terminal cover and secure Terminal cover to Charger case complete by tightening BT3x10 Tapping screw.
(Figs. 3 and 4)
Note: 1) The tightening torque has to be 0.5N.m.

2) Use two different Compression springs 4 (233194-8 and 231474-6) for their appropriate positions.

Fig. 3 Fig. 4

Lead wire holder

Walls of Charger case cover

Clip

Connector CN2
Connector CN1

Boss for
Compression
spring 4

Charging circuit

Oval wall of
Terminal cover

Terminal cover

Compression
spring 4
(231474-6)

Oval wall of
Charger case
complete

Boss of charger
case complete

Terminal cover

Charger case
complete

Compression
spring 4 (231474-6)

Boss of charge
case complete

BT3x10 Tapping
screw