NICKEL METAL HYDRIDE BATTERIES: INDIVIDUAL DATA SHEET

HHR450A Cylindrical L-fat A size (HR 18/67)

 

Dimensions (with Tube)
(mm)

18.2+-00.7

(+)

67.0+- 01.5

( )

Specifications

 

 

 

 

 

mm

 

inch

 

 

 

 

 

 

 

 

 

 

Diameter

 

 

18.2+0/-0.7

 

0.72+0/-0.03

 

 

Height

 

 

67.0+0/-1.5

 

2.64+0/-0.06

 

 

Approximate

 

Grams

 

Ounces

 

 

Weight

 

 

60

 

2.12

 

 

 

 

 

 

 

 

 

 

 

Nominal Voltage

 

1.2V

 

 

 

 

 

 

 

 

 

Discharge

 

Average**
4500 mAh

 

Capacity*

 

Rated (Min.)
4200 mAh

 

 

 

 

 

 

 

 

 

Approx. Internal impedance

 

25m

 

at 1000Hz at charged state.

 

 

 

 

 

 

Charge

 

Standard
420mA (0.1It) x 16hrs.

 

 

 

 

 

 

 

 

 

 

 

Rapid***
2000mA dT/dt

 

 

Charge

 

Standard

˚C

 

˚F

 

Ambient Temperature

 

0˚C to 45˚C

 

32˚F to 113˚F

 

 

 

 

 

 

Storage

 

 

 

 

 

 

 

 

< 3 months
-20˚C to 45˚C

 

-4˚F to 113˚F

 

 

 

 

Rapid

0˚C to 40˚C

 

32˚F to 104˚F

 

 

Discharge

-10˚C to 65˚C

 

14˚F to 149˚F

 

 

 

 

< 1 year

-20˚C to 35˚C

 

-4˚F to 95˚F

 

 

 

 

 

 

 

 

 

 

 

 

 

< 1 month
-20˚C to 55˚C

 

-4˚F to 131˚F

 

*After charging at 0.1It for 16 hours, discharging at 0.2It. ** For reference only.

*** For rapid charge: use dT/dt charge termination method. Refer to the Nickel Metal Hydride “Charge Methods” section for further details.

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

Typical Charge Characteristics

 

2.0

 

 

1.9

Charge: 1500mA- V=10mV

 

1.8

 

 

1.7

 

(V)

1.6

 

1.5

 

Voltage

 

1.3

 

 

1.4

 

 

1.2

 

 

1.1

 

 

1.0

0˚C

 

20˚C

 

0.9

 

45˚C

 

0.8

 

 

020 40 60 80 100 120 140 160 180 200 220 Charge Time (minutes)
Typical Discharge Characteristics

1.8

 

1.7

 

 

Charge: 2000mA dT/dt=1.0˚C/min,20˚C

 

 

 

 

 

Disharge Temperature: 20˚C

 

 

 

1.6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.5

 

 

 

 

 

 

 

 

 

(V)

1.4

 

 

 

 

 

 

 

 

 

Voltage

1.2

 

 

 

 

 

 

 

 

 

 

1.3

 

 

 

 

 

 

 

 

 

 

1.1

 

 

 

 

 

 

 

 

 

 

1.0

 

 

 

 

 

 

 

 

 

 

0.9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

900mA(0.2 It)

 

 

 

 

 

 

 

 

 

 

 

 

0.8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

1

2

3

4

5

6

Discharge Time (hours)

 

1.8

 

 

 

 

 

 

 

 

 

 

 

 

1.7

 

 

Charge: 2000mA dT/dt=1.0˚C/min,20˚C

 

 

 

 

 

Disharge Temperature:

20˚C

 

 

 

 

 

 

 

 

 

 

 

1.6

 

 

 

 

 

 

 

 

 

 

 

 

1.5

 

 

 

 

 

 

 

 

 

 

 

(V)

1.4

 

 

 

 

 

 

 

 

 

 

 

Voltage

1.2

 

 

 

 

 

 

 

 

 

 

 

 

1.3

 

 

 

 

 

 

 

 

 

 

 

 

1.1

 

 

 

 

 

 

 

 

 

 

 

 

1.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.9

 

 

 

 

 

 

 

2000mA(0.44 It)

 

 

 

 

 

 

 

 

 

 

 

0.8

 

 

 

 

 

 

 

4500mA(1 It)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

20

40

60

80

100

120

140

Discharge Time (minutes)
NICKEL METAL HYDRIDE HANDBOOK
AUGUST 2005

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.