AUGUST 2003
NICKEL CADMIUM HANDBOOK
This information is generally descriptive only and is not intended to make or imply any representation, guarantee or warranty with respect to any cells and batteries. Cell and battery designs/specifications are subject to
modification without notice. Contact Panasonic for the latest information.
P-70AARC/FT AA size Type: R
Dimensions (with tube) (mm)
Specifications
Typical Discharge Characteristics
Typical Charge Characteristics
NICKEL CADMIUM BATTERIES: INDIVIDUAL DATA SHEET
Discharge Time (hours)
Voltage (V)
140mA
(0.2It)
0 1 2 3 4 5 6 7 8
9
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
Charge: 70mA(0.1It)x 15hrs., 20˚C.
Discharge Temperature : 20˚C.
Charge: 70mA(0.1It)x 15hrs., 20˚C.
Discharge Temperature: 20˚C.
0 10 20 30 40 50 60 70 80 9
0
Discharge Time (minutes)
Voltage (V)
700mA
(1It)
1400mA
(2It)
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
Charge Time (minutes)
Voltage (V)
Charge: 700mA(1It)x 1.5hrs.
1.3
1.2
1.1
1.0
0.9
1.8
1.7
1.6
1.5
1.4
10˚C
20˚C
40˚C
0 12
0
100 80 604020
Charge: 70mA(0.1It)x 15hrs.
0˚C
20˚C
45˚C
1.3
1.2
1.1
1.0
0.9 0 2 4 6 8 10 12 14 16 1
8
Charge Time (hours)
Voltage (V)
1.8
1.7
1.6
1.5
1.4
* 0.2It discharge capacity after charging at 0.1It for 16 hours.
** For reference only.
*** Refer to “Charge Methods for Ni-Cd Batteries”
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.
(
+
)
( )
14.5+
-0
0
.7
48.3+
-0
1
.0
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
Diameter
Height
Approximate
Weight
mm inch
Grams Ounces
14.5 +0/-0.7
48.3 +0/-1.0 0.57 +0/-0.03
1.90 +0/-0.04
22g 0.78
Nominal V oltage 1.2V
740mAh
700mAh
13mΩ
Discharge
Capacity* Average**
Rated (Min.)
Approx. Internal impedance at
1000Hz at charged state
Charge
Charge
Storage
Discharge
Standard
Rapid***
Standard
Rapid
Ambient
Temperature
˚C ˚F
0˚C to 45˚C
10˚C to 40˚C
-20˚C to 65˚C
-20˚C to 35˚C
-20˚C to 45˚C
32˚F to 113˚F
50˚F to 104˚F
-4˚F to 149˚F
-4˚F to 95˚F
-4˚F to 113˚F
< 2 years
< 6 months
70mA (0.1It) x 16 hrs.
700mA (1It) x 1.5 hrs.
