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T ECHNICAL INFORMATION
Models No. DC1803
CONCEPT AND MAIN APPLICATIONS
Both of Ni.Cd and Ni.MH MAKITA batteries H
from 7.2V to 18V can be charged with this DC1803.
Its features and benefits are
(1) Approx. 10 - 20 minutes shorter charging time in comparing
(2) Maintenance (trickle) charging system keeps the full charged
condition for 24 hours, even if the battery is left in this charger
after finishing of charging process. W
Dimensions : mm ( " )
Length ( L ) 201 (7-15/16)
Height ( H ) 78 (3-1/16)
Width ( W ) 105 (4-1/8)
Voltage (V) Current (A) Cycle (Hz) Input
110 50 / 60 75W
120 50 / 60 75W
220 50 / 60 75W
230 50 / 60 75W
240 50 / 60 75W
Output voltage ; V (DC) 7.2 9.6 12 14.4 18
Output current : A 2.6
for 1.3 Ah Ni-Cd battery Approx. 30
for 2.0 Ah Ni-Cd battery Approx. 45
for 2.2 Ah Ni-MH battery Approx. 50
for 2.6 Ah Ni-MH battery Approx. 60
for 3.0 Ah Ni-MH battery Approx. 70
< Note > The above figures about charging time may differ from condition to condition on batteries' temperature
or room temperature.
Features and benefits P2/4
Both of Ni.Cd and Ni-MH MAKITA batteries
from 7.2V to 18V can be charged. See the list below.
Approx. 10 - 20 minutes shorter
charging time in comparing
See "Comparison of Product" at P.3
Type and Charging 7.2V 9.6V 12V 14.4V 18V
capacity time: min. battery battery battery battery battery
1.3Ah Approx. 30 7000 9000 9100 1200 1200A 1420
9120 1210 1220
2.0Ah Approx. 45 7002 9002 9102 1202 1202A 1422 1822
2.2Ah Approx. 50 7033 9033 9133 1233 1433 1833
2.6Ah Approx. 60 9134 1234 1434 1834
2.2Ah Approx. 70 9135 9135A 1235 1235A 1435 1835
Ideal charging system in this class with the following installations
1 Controlling by micro computer : The installed micro computer perceives the full charged condition, and
control the optimum way to stop the charging process, from the followings.
A) Minus delta V system : Stop the charging process with perceiving the battery's voltage drop.
B) Delta T system : Stop the charging process with perceiving the change of battery's temperature.
( This system is applied to only the charger of 4 terminal-type.)
C) T system (Timer) : Stop the charging process with perceiving the battery's temperature which is
input in the micro computer in advance. For instance the charging process is to
be stopped at 45
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