Panasonic HHR370AH User Manual
NICKEL METAL HYDRIDE BATTERIES: INDIVIDUAL DATA SHEET
.5
0
0
6
HHR370AH Cylindrical L-Fat A size (HR 18/67)
Dimensions (with T ube) (mm)
+-0
18.2
0.7
(+)
+-0
67.0
1
( )
Specifications
mm inch
2
18.2+0/-0.7
67.0+0/-1.5
Grams
60 2.12
3700 mAh
3500 mAh
Diameter
Height
Approximate
Weight
Nominal V oltage 1.2V
Discharge
Capacity
1
Average
Rated (Min.)
Approx. Internal impedance
at 1000Hz at charged state.
Standard
3
Charge
Rapid
Low Rate
Charge
Standard
Rapid
Discharge
< 1 year
Ambient
Storage
Temperature
< 6 months
< 1 month
< 1 week
1
After charging at 0.1It for 16 hours, discharging at 0.2It.
2
For reference only.
3
Need specially designed control system
Control System:
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
4
With control system
370mA x 16hrs.
1750mA x 2.4 hrs.
185mA x 32 hrs.
123mA x 48 hrs.
C
˚
-10˚C to 60˚C
-10˚C to 45˚C
-10˚C to 60˚C
-20˚C to 35˚C
-20˚C to 45˚C
-20˚C to 55˚C
-20˚C to 65˚C
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.
20mΩ
14˚F to 140˚F
14˚F to 113˚F
14˚F to 140˚F
-4˚F to 95˚F
-4˚F to 113˚F
-4˚F to 131˚F
-4˚F to 149˚F
0.72+0/-0.03
2.64+0/-0.06
Ounces
4
F
˚
Typical Charge Characteristics
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
Voltage (V)
1.2
1.1
1.0
0.9
0.8
0246810121416182
Charge: 330mA(0.1 It)✕16hrs.
Charge Time (hours)
-10˚C
25˚C
60˚C
Typical Discharge Characteristics
120
110
100
90
80
70
60
Capacity Ratio (%)
Charge: 330mA(0.1 It)✕15hrs
50
Disharge: 660mA(0.2 It),cut off voltage 1.0V
40
Disharge Temperature: 20˚C
30
-20-100 1020304050607
Temperature (˚C)
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
Voltage (V)
1.2
1.1
1.0
0.9
0.8
012345
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
Charge Time (hours)
Charge:
Disharge:
0˚C
25˚C
60˚C
330m
A(0.1 It)✕16hrs,25˚C
660m
A(0.2 It)
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.
AUGUST 2005
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