3A-55M
Specification
Ni-MH
d
Size : AAA
Type:
Rechargeable nickel metal hydride battery
Dimension
D.......................................................... 10.0 0.5mm
d........................................................... 5.0 0.2mm
H.......................................................... 43.0
0.0
mm
0.5
Nominal Voltage.................................................
1.2V
Weight...............................................................
~12g
Internal resistance
At 1000Hz..................................................... ~30m
Capacity
Rated capacity...............................................550mAh
1) At 0.2C discharge...100%~110% of rated
capacity.
2) At 0.5C discharge........95~100% of rated
capacity.
3) At 1C discharge.............90~95% of rated
capacity.
1) Slow charge 55mA x 15hrs. (0-45 C)
To avoid overcharge, a timer is used to terminate the
charging after 150% capacity input.
2) Normal charge 250mA x 3hrs. (10-45 C)
To avoid overcharge, a timer is used to terminate the
charging after 150% capacity input. In addition, a
temperature cut off (TCO) device, i.e. thermostat,
with cut off temperature at 55 C must be used for
safety purpose.
3) Quick charge 550mA x 1.2hrs. (10-45 C)
With charging current over 0.5C A, a joint use of dT
or - V cut off is required. For dT control, a maximum
allowable temperature rise is 1 C/min. Or if - V
control is used, the maximum allowable voltage
decrease is 10 mV/cell. TCO device with cut off
temperature at 60 C should be used at the same
time.
Storage:
1) Storage Temperature........................-10 C to 45 C
Volts
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
0
20
40
60
80
Capacity %
100
120
140
H
D
(with jacket)
1C
0.2C 0.5C
0.5C / 1C Rate Discharging Curves
Volts
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
0
20
40
60
Capacity %
80
100
120
0.2C
0.2C Rate Discharging Curve
Volts
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
0
20
40
60
Capacity %
80
100
120
1C
0.5C
Remark: Weight and internal impedence are for reference only.
0.2C / 0.5C / 1C Rate Charging Curves
1
