NICKEL METAL HYDRIDE BATTERIES: INDIVIDUAL DATA SHEET
Typical Charge Characteristics
HHR300CH
Cylindrical C size (HR 26/50) for backup use
Dimensions (with Tube)
(mm)
2.0
1.8
1.6
Charge: 300mA(0.1 It) x 16hrs.
1.4
1.2
25.8+
0
-
1.0
10˚C
25˚C
60˚C
1.0
0.8
(+)
0
2
4
6
8
10
20
30
40
50
60
Charge Time (hours)
50.0+
0
-
1.5
Typical Discharge Characteristics
120
110
100
90
80
70
( )
Specifications
Charge: 300mA (0.1 It) x 16 hrs.
Charge Temperature: -10 to 60˚C
Discharge: 600mA (0.2 It)
Cut-off Voltage: 1.0V
Discharge Temperature: 25˚C
60
50
40
30
mm
inch
25.8+0/-1.0
50.0+0/-1.5
Grams
1.02+0/-0.04
1.97+0/-0.06
Ounces
Diameter
Height
-20
-10
0
10
20
30
40
50
60
70
Approximate
Weight
Temperature (°C)
80
2.82
Nominal Voltage
1.2V
Average2
3300 mAh
3100 mAh
Discharge
Capacity1
Rated (Min.)
1.8
Charge: 300mA(0.1It) x 16 hrs., 25°C
Discharge: 10A, 20A, 25°C
Approx. Internal impedance
at 1000Hz at charged state.
5mΩ
1.6
1.4
1.2
1.0
0.8
300mA (0.1It) x 16hrs.
1500mA (1It) x 2.4 hrs.4
Standard
Rapid3
Charge
155mA x 32 hrs.
100mA x 48 hrs.
Low Rate
F
˚
C
˚
Standard
32˚F to 113˚F
32˚F to 104˚F
14˚F to 149˚F
14˚F to 113˚F
-4˚F to 95˚F
-4˚F to 95˚F
-4˚F to 131˚F
0˚C to 45˚C
Charge
Rapid
10A
20A
10˚C to 40˚C
Low Rate
Discharge
< 1 year
-10˚C to 45˚C
-10˚C to 65˚C
-20˚C to 35˚C
-20˚C to 35˚C
-20˚C to 55˚C
0
5
10
15
20
25
30
Discharge Time (minutes)
Storage
< 3 months
< 1 month
1
2
3
After charging at 0.1It for 16 hours, discharging at 0.2It.
For reference only.
Need specially designed control system
Control System:
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.
dT/dt cut-off; 1 to 2°C/min
-UV cut-off; -UV per cell = 5 to 10 mV
T-control; T=65°C
Rapid charger timer; 2.4h (at 1.25a)
Trickle timer; within 2h
• [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
4
With control system
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.
AUGUST 2005
NICKEL METAL HYDRIDE 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.
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