NICKEL CADMIUM BATTERIES: INDIVIDUAL DATA SHEET
P-18N
N size (KR12/30) Type: N
Dimensions (with tube)
(mm)
Typical Charge Characteristics
1.8
1.7
1.6
Charge : 18mA(0.1It) x 15hrs.
Voltage (V)
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0
2
4
6
8
10
12
14
0˚C
20˚C
45˚C
12.0
+ 0
-
0.7
(
+
)
16
18
Charge Time (hours)
30.0
+ 0
-
1.0
1.8
( )
Voltage (V)
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0
1
2
3
4
5
Charge : 45mA(0.25It)x 6hrs.
0˚C
20˚C
45˚C
Specifications
Diameter
Height
Approximate
Weight
Nominal Voltage
Rated (Min.)
Approx. Internal impedance at
1000Hz at charged state
Standard
Short Time
Max
Charge
Trickle
Current
Min
Current
mm
12.0 +0/-0.7
30.0 +0/-1.0
Grams
8g
inch
0.47 +0/-0.03
1.18 +0/-0.04
Ounces
0.28
1.2V
190mAh
180mAh
6
7
8
9
Charge Time (hours)
Discharge
Capacity*
Average**
Typical Discharge Characteristics
1.7
Charge: 18mA(0.1It)x 15hrs., 20˚C.
Discharge Temperature: 20˚C
24mΩ
Voltage (V)
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.9
18mA (0.1C) x 16 hrs.
45mA (0.25C) x 6 hrs.
9mA (0.05It) x 30h and over
6mA (0.033It) x 45h and over
˚C
0˚C to 45˚C
10˚C to 45˚C
-20˚C to 65˚C
-20˚C to 35˚C
-20˚C to 45˚C
Ambient
Temperature
Charge
Standard
˚F
32˚F to 113˚F
50˚F to 113˚F
-4˚F to 149˚F
-4˚F to 95˚F
-4˚F to 113˚F
36mA
(0.2C)
1
2
3
4
5
6
7
8
9
0.8
0
Short Time
Discharge
< 2 years
Storage
< 6 months
Discharge Time (hours)
1.7
Voltage (V)
* 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
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0
10
20
360mA
(2C)
30
40
Charge : 18mA(0.1It)x 15hrs., 20˚C.
Discharge Temperature: 20˚C
180mA
(1C)
50
60
70
80
90
Discharge Time (minutes)
NICKEL CADMIUM HANDBOOK, PAGE 38
AUGUST 2003
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