NICKEL METAL HYDRIDE HANDBOOK
AUGUST 2005
NICKEL METAL HYDRIDE BATTERIES: INDIVIDUAL DATA SHEET
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.
Typical Discharge Characteristics
Typical Charge Characteristics
HHR70AAAJ
Cylindrical HR AAA size (HR 11/45)
Dimensions (with Tube) (mm)
Specifications
* After charging at 0.1It for 16 hours, discharging at 0.2It.
** 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
(
+
)
( )
44.5
+
-
0
1.0
10.5
+
-
0
0.7
Diameter
Height
Approximate
Weight
mm
inch
Grams
Ounces
10.5+0/-0.7
44.5+0/-1.0
0.41+0/-0.03
1.75+0/-0.04
13
0.46
Nominal Voltage
1.2V
Discharge
Capacity*
Average**
Rated (Min.)
720 mAh
700 mAh
30m
Ω
70mA (0.1It) x 16hrs.
650mA (1It) x 1.2 hrs.
Approx. Internal impedance
at 1000Hz at charged state.
Charge
Charge
Discharge
Storage
Standard
Rapid
Standard
Rapid
Ambient
T
emperature
˚
C
˚
F
0˚C to 45˚C
0˚C to 40˚C
-10˚C to 65˚C
-20˚C to 35˚C
-20˚C to 45˚C
-20˚C to 55˚C
32˚F to 113˚F
32˚F to 104˚F
14˚F to 149˚F
-4˚F to 95˚F
-4˚F to 113˚F
-4˚F to 131˚F
< 1 year
< 3 months
< 1 month
Voltage (V)
Discharge Time (minutes)
0
100 200 300 400 500 600 700 800 900 10001100 1200
2.0
1.8
1.6
1.4
1.2
1.0
0.8
Charge:
1It(650mA) x 1.2h at 0.20, 45˚C
Rest:
1~3h
Discharge: 1It(650mA) to 1.0V at 20˚C
0˚C
20˚C
45˚C
Voltage (V)
Discharge Time (minutes)
0
100 200 300 400 500 600 700 800 900 1000 1100 1200
2.0
1.8
1.6
1.4
1.2
1.0
0.8
Charge:
1It(650mA) x 1.2h at 20˚C
Rest:
1h
Discharge: 0.2It(130mA) to 1.0V at 20˚C
Voltage (V)
Discharge Time (minutes)
0
100 200 300 400 500 600 700 800 900 1000 11001200
2.0
1.8
1.6
1.4
1.2
1.0
0.8
Charge:
1It(650mA) x 1.2h at 20˚C
Rest:
1 ~ 5h
Discharge: 1It(650mA) to 1.0V at 20˚C
