F
eatures and benefits
P 2 / 4
Ideal charging system in this class with the following installations
* 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.
* Trickle charging mode : Continue to produce very small charging current (approx. 40mA) for full charged
battery left in charger.
* Constant output current (charging current)
: By keeping the output current (Ampere) in the constant level, it is possible to stop
the charging process with perceiving the battery's voltage drop exactly.
Namely it is possible to perceive the full charged condition by the above
"Minus delta V system ".
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 : 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°C for 1.3Ah battery, and at 60°C for 1.7 - 2.2Ah battery.
D) Timer system : Stop the charging process in 150 minutes after starting the charge, if the full
charged condition would not be perceiving with any of the above 3 systems.
Battery's voltage
and temperature
Charging time
Full charged line
1
2
3
Minus delta
V system
Delta T
system
T system
1 Battery's voltage
2 Heated battery's temperature.
It can not be charged
completely.
3 Battery's normal temperature
in charging process
The process is stopped by
delta T system.
* Current transforming system : The built-in "High-Frequency Tranceformer"supplys the charging current as follows.
1. Convert alternative current into direct current.
2. Re-convert the above direct current into alternative current, however, high
frequency of approx. 150 - 160 kHz in this stage.
3. Reduce the voltage to the battery's voltage.
The feature of "High-Frequency Tranceformer" is light and compact comparing
with the existing trance.
The chargeable batteries
Ni-Cd
Ni-MH
* Charging time
Capacity
7.2 V
9.6 V
12 V
14.4 V
1.3Ah
1.7Ah
2.0Ah
3.0Ah
2.2Ah
2.6Ah
Approx. 30 min.
Approx. 40 min.
Approx. 50 min.
Approx. 60 min.
Approx. 70 min.
Approx. 45 min.
7000
7001
7002
7033
7100
7120
9001
9101
9101A
9000
9100A
9100
9120
9135
9135A
1235
1235A
9002
9102A
9102
9033
9134
9133
9122
1200
1210
1202
1222
1233
1234
1200A
1201
1201A
1220
Battery's type No.
1420
1422
1433
1434
1435
<Note> The charging time can be different from conditions to conditions of batteries and room temperature.
