Cell Type: AL-4500
RECHARGEABLE NICKEL-METAL HYDRIDE C-SIZE
Specifications
Nominal voltage

D

Capacity

1.2V

Maximum (rated)
Typical

d

C

4500mAh

3900mAh

4100mAh 3850mAh
25.5 ± 0.2 mm
1.00 ± 0.01 inch
7.9 ± 0.2 mm
0.30 ±0.01 inch
50.0 ±0.5 mm
1.95 ±0.02 inch
2.5 ± 0.2 mm
0.10 ±0.01 inch
approx. 80g

D
Diameter

h

C/5

d
H
Height
h
Weight
Approx. internal impedance at
1000Hz at charged state.
Standard
Charge
Quick
starting at
1.0V
Rapid

≤9.0mΩ
0.1C x 14 hrs
0.5C x 2.2 hrs or
–ΔV=50mV or 48°C
1.0C x 1.1 hrs or
–ΔV=5mV or 48°C
0.2C
1.0C (continuous)
2.5C (momentary,
≤1sec)
-20°C to +45°C
-10°C to +45°C
-20°C to +50°C

Standard
Discharge
to 1.0V

High Rate
Charge
Discharge

Ambient
temperature

Less than one month

Storage

-15°C to +40°C
Less than one year

Typical Characteristics

Charge state before shipment (Ready to use): ≥75%

Timer charge (at low rate)

Quick charge (at high rate)

1,6

1, 6

1, 5

1,4

Cell Voltage [V]

Cell Voltage [V]

1,5

Charge: 0,1C x 14 hrs at 20°
1,3

1,2

1,1

1, 4

Charge: 0,5C to -dV=5mV at 20°
1, 3

1, 2

1, 1

1,0

1, 0
0

2

4

6

8

10

12

14

16

0

20

40

60

Charge Time [hrs]

80

1 00

120

140

160

Charge Time [min]

Self Discharge Comparison between the new AccuLoop and conventional NiMH rechargeable battery

Discharge
5500
1, 6

new AccuLoop 4500mAh, size C

5000

conventional, high quality NiMH 5000mAh, size C

4500

1, 5

0,1C and 0,2C: Charge: 0,1C x 14 hrs at 20°
4000

1C: Charge: 0,5C to -dV=5mV at 20°
Capacity [mAh]

Cell Voltage [V]

1, 4

1, 3

1, 2

3500
3000
2500
2000
1500

1, 1

1000
1, 0

1C

0,1C

0,2C

500
0

0, 9
0

2

4

6

Discharge Time [hrs]

8

10

12

0

2

4

6

8

10

Storage Time at room temperature [months]

Delivered capacity is dependent on the applied load, operating temperature and cut-off voltage. Data in this specification is subject to change without notice. Rev. 03/2009.

12