User manual | Batteries Rechargeable Batteries NiMH Batteries (Nickel Metal Hydride) NiMH Series HHR250SCH Data sheet

NICKEL METAL HYDRIDE BATTERIES: INDIVIDUAL DATA SHEET
Typical Charge Characteristics
HHR250SCH Cylindrical SC size (HR 23/43)
Dimensions (with Tube)
(mm)
2.0
Charge: 0.1It x 15h at 25, 40, 60˚C
Discharge: 0.1It to 1.0V at 25˚C
Voltage (V)
1.8
23.0 +- 01.0
1.6
1.4
1.2
25˚C
40˚C
60˚C
1.0
(+)
Rest: 3h
0.8
0
500
1000
1500
2000
2500
3000
3500
4000
4500
Capacity (mAh)
43.0 +- 01.5
Typical Discharge Characteristics
2.0
Charge: 0.5It x 2.4h at 25˚C
Rest: 1h
Discharge: 1, 2, 3It to 0.8V at 25˚C
Voltage (V)
1.8
( )
Specifications
1.4
1.2
mm
inch
Diameter
23.0+0/-1.0
0.91+0/-0.04
1.0
Height
43.0+0/-1.5
1.69+0/-0.06
0.8
Approximate
Weight
Grams
Ounces
Low Rate
Charge
Standard
Rapid
Discharge
< 1 year
< 6 months
Storage
< 1 month
< 1 week
55
1It
2It
3It
0
500
1000
1500
2000
2500
3000
3500
4000
4500
Capacity (mAh)
1.94
1.2V
2650 mAh
2500 mAh
5mΩ
1.6
250mA x 16hrs.
1250mA x 2.4 hrs.4
125mA x 32 hrs.
83mA x 48 hrs.
˚F
˚C
14˚F to 140˚F
-10˚C to 60˚C
14˚F to 113˚F
-10˚C to 45˚C
-10˚C to 60˚C
14˚F to 140˚F
-4˚F to 95˚F
-20˚C to 35˚C
-4˚F to 113˚F
-20˚C to 45˚C
-4˚F to 131˚F
-20˚C to 55˚C
-4˚F to 149˚F
-20˚C to 65˚C
Charge: 0.5It x 2.4h
Rest: 1h
Discharge: 10, 20, 30A to 0.8V at 20˚C
1.5
1.4
Voltage (V)
Nominal Voltage
Average2
Discharge
Rated (Min.)
Capacity1
Approx. Internal impedance
at 1000Hz at charged state.
Standard
Rapid3
Charge
Ambient
Temperature
1.6
1.3
1.2
10A
1.1
20A
30A
1.0
0.9
0.8
0.7
0.6
0
500
1000
1500
2000
2500
3000
Capacity (mAh)
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
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
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.

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