Panasonic HHR450A User manual

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
HHR450ACylindrical L-fat A size (HR 18/67)
Dimensions (with Tube) (mm)
Specifications
* 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.
0 20 40 60 80 100 120 140 160 180 200 22
0
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
Voltage (V)
0˚C
20˚C
45˚C
Charge Time (minutes)
Charge: 1500mA- V=10mV
012345
6
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
900mA(0.2 It)
Charge: 2000mA dT/dt=1.0 ˚C /min,20 ˚C
Disharge Temperature:
20 ˚C
Voltage (V)
Discharge Time (hours)
0 20 40 60 80 100 120 14
0
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
4500mA(1 It)
2000mA(0.44 It)
Charge: 2000mA dT/dt=1.0 ˚C /min,20 ˚C
Disharge Temperature:
20 ˚C
Voltage (V)
Discharge Time (minutes)
( + )
( )
67.0+
-0
1.5
18.2+
-0
0
.7
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
NominalVoltage 1.2V
Discharge
Capacity* Average**
Rated (Min.)
4500 mAh
4200 mAh
25mΩ
420mA (0.1It) x 16hrs.
2000mA dT/dt
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
Diameter
Height
Approximate
Weight
mm inch
Grams Ounces
18.2+0/-0.7
67.0+0/-1.5 0.72+0/-0.03 2.64+0/-0.06
60 2.12