Panasonic HHR380A User Manual

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.

  * 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

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)

Charge Time (minutes)

Charge: 2000mA- 

  

V=10mV

0˚C

20˚C
45˚C

0

1

2

3

4

5

6

0.8

0.9

1.0

1.1

1.2

1.3

1.4

1.5

1.6

1.7

1.8

760mA(0.2 It)

Charge: 

2000mA dT/dt=1.0˚C/min,20˚C

Disharge Temperature: 

20˚C

Voltage (V)

Discharge Time (hours)

0

10

20

30

40

50

60

70

80

90

100 110 120

0.8

0.9

1.0

1.1

1.2

1.3

1.4

1.5

1.6

1.7

1.8

2000mA(0.53 It)
3800mA(1 It)

Charge: 2000mA,dT/dt=1.0˚C/min.20˚C
Disharge Temperature: 

20˚C

Discharge Time (minutes)

Voltage (V)

(

+

)

(   )

67.0

+

-

0

1.5

17.0

+

-

0

0.7

[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

1.2V

3800 mAh

3700 mAh

25m

Ω

370mA (0.1It) x 16hrs.

2000mA dT/dt

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

17.0+0/-0.7

67.0+0/-1.5

0.67+0/-0.03

2.64+0/-0.06

53

1.87