NICKEL CADMIUM BATTERIES: INDIVIDUAL DATA SHEET
P-120SCH
SC size (KR23/43) Type: H
Dimensions (with tube)
(mm)
Typical Charge Characteristics
1.8
1.7
1.6
Charge: 40mA(0.033It)x 48hrs.
0˚C
20˚C
45˚C
Voltage (V)
23.0
+ 0
-
1.0
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0
10
20
30
40
50
60
(
+
)
Charge Time (hours)
120
43.0
+ 0
-
1.5
100
"H" Type P-120SCH
Capacity Ratio (%)
80
standard type
60
( )
40
Specifications
Diameter
Height
Approximate
Weight
Nominal Voltage
Discharge
Capacity*
Average**
Rated (Min.)
mm
23.0 +0/-1.0
43.0 +0/-1.5
Grams
48g
inch
0.91 +0/-0.04
1.69 +0/-0.06
Ounces
1.69
1.2V
1350mAh
1200mAh
10mΩ
120mA (0.1It) x 16 hrs.
Voltage (V)
20
Charge: 40mA(0.033It)x 48hrs.
Discharge: 1200mA(1It), Cut-off voltage 1.1V.
0
-10
0
10
20
30
40
50
60
70
Temperature
˚
C)
(
Typical Discharge Characteristics
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0
10
20
30
40
50
60
70
80
90
5˚C
45˚C
20˚C
Charge: 40mA(0.033It)x 48hrs., 20˚C.
Discharge: 1200mA(1It).
Approx. Internal impedance at
1000Hz at charged state
Standard
Charge
Trickle
Max
Current
Min
Current
60mA (0.05It) x 30h and over
40mA (0.033It) x 48h and over
˚C
0˚C to 50˚C
-20˚C to 65˚C
-20˚C to 35˚C
-20˚C to 45˚C
˚F
32˚F to 122˚F
-4˚F to 149˚F
-4˚F to 95˚F
-4˚F to 113˚F
Ambient
Temperature
Charge
Discharge
< 2 years
Storage
< 6 months
Discharge Time (minutes)
* 0.2It discharge capacity after charging at 0.1It for 16 hours.
** For reference only.
Battery performance and cycle life are strongly affected by how
they are used. In order to maximize battery safety, please consult
Panasonic when determining charge / discharge specs, warning
label contents and unit design.
Note:
[It] was previously expressed as [C]. [It] is an IEC standard expression
for the amount of charge or discharge current and is expressed as:
It(A) = Cn (Ah)/1h.
• [It] is the reference test current in ampres
• [Cn] is the rated capacity of the cell or battery in Ampere-hours.
n = the time base [hours] for which the rated capacity is declared
NICKEL CADMIUM HANDBOOK, PAGE 62
AUGUST 2003
Power technology
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