Panasonic HHR300CH User Manual

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.  
5m  
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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