Eveready Battery Company, Inc.
R
Checkerboard Square
St. Louis, MO 63164
Telephone: 1-800-383-7323
Internet: www.energizer.com
Engineering Data
D
ENERGIZER NO. NH50
Dimensions (mm)
Rechargeable
1.2V
Nickel-Metal Hydride
Chemical System:
Nickel-Metal Hydride (NiMH)
Inches
.024
.059
.063
.307
.374
1.268
1.346
2.342
2.421
Designation:
Not Assigned
Battery Voltage:
1.2 Volts
Average Weight:
73 grams (2.6 oz.)
Volume:
56.5 cubic centimeters (3.5 cubic inch)
Terminals:
Flat Contact
Rated Capacity ( to 1.0 Volt ):
2.2 Ah
( Based on 440 mA (0.2C) discharge rate )
Maximum Charge Rate:
440 mA
Jacket:
Plastic
9.50
7.80
34.20
32.20
1.50
Minimum
(+)
Millimeters
.60
1.50
1.60
7.80
9.50
32.20
34.20
59.50
61.50
Internal Resistance
61.50
59.50
The internal resistance of the cell varies with state of charge, as follows:
Cell Charged
Cell 1/2 Discharged
11 milliohms
21 milliohms
(Tolerance of + 20% applies to above values)
-
This dimension
applies contact
to contact
AC Impedance (No Load)
(-)
1.60
.60
The impedance of the charged cell varies with frequency, as follows:
Frequency (Hz)
Impedance (milliohms) (for charged cell)
1000
9
TYPICAL DISCHARGE CHARACTERISTICS
Average Performance at 21擄C (70擄F)
1.4
1.3
Cell Voltage
Note: Above values based on AC current set at 1.0 ampere.
Value tolerances are
+
20%.
-
Operating and Storage Temperatures
1.2
1.1
1.0
0.9
0
2
4
6
8
10
12
440 mA
(0.2C)
220 mA
(0.1C)
Hours of Discharge
1.4
1.3
Ranges of temperature applicable to operation of the NH50 cells are:
Charge @ 0.1C: 32擄F to 122擄F (0擄C to 50擄C)
Discharge @ 0.1C: -4擄F to 122擄F (-20擄C to 50擄C)
Storage: -40擄F to 122擄F (-40擄C to 50擄C) (6 Months Max.)
-4擄F to 95擄F (-20擄C to 35擄C) (2 Years Max.)
Operating at extreme temperature will significantly effect service and cycle life.
Cell Voltage
1.2
1.1
1.0
0.9
0
11 A
(5.0C)
20
40
2.2 A
(1.0C)
60
80
100
1.1A
(0.5C)
120
Minutes of Discharge
IMPORTANT NOTICE
This data sheet contains information specific to batteries manufactured at
time of its publication. Please contact your Energizer representative for most
current information. Contents herein do not constitute a warranty.
Form No. EPS - 7104B
1
