NICKEL METAL HYDRIDE HANDBOOK AUGUST 2005
NICKEL METAL HYDRIDE BATTERIES: INDIVIDUAL DATA SHEET
Thisinformationisgenerallydescriptiveonlyandisnotintendedtomakeorimplyanyrepresentation,guaranteeorwarrantywithrespecttoanycellsandbatteries.Cellandbatterydesigns/specificationsaresubjectto
modificationwithoutnotice.ContactPanasonicforthelatestinformation.
Typical Discharge Characteristics
Typical Charge Characteristics
HHR70AAAJ
Cylindrical HRAAA 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
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
NominalVoltage 1.2V
Discharge
Capacity* Average**
Rated (Min.)
720 mAh
700 mAh
30mΩ
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
Temperature
˚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
10001100120
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 100011001200
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
