2A140MC
Specification
Ni-MH
d
Size : AA
Type:
Rechargeable nickel metal hydride battery
Dimension
D.......................................................... 14.0
d........................................................... 5.0
H.......................................................... 50.0
h........................................................... 1.5
0.2mm
0.2 mm
0.5 mm
0.5 mm
D
h
H
Nominal Voltage.................................................
1.2V
Weight................................................................
27g
Volts
(with jacket)
Internal resistance
At 1000Hz..................................................... ~30 m
Capacity
Rated capacity..............................................1400mAh
1) At 0.2C discharge......100~105%of rated capacity.
2) At 0.5C discharge..........95~98%of rated capacity.
3) At 1C discharge.............90~95%of rated capacity.
1) Slow charge 140mA x 15hrs. (0-45 C)
To avoid overcharge, a timer is used to terminate the
charging after 150% capacity input.
2) Normal charge 700mA x 2-3hrs. (10-45 C)
To avoid overcharge, a timer is used to terminate the
charging after 150% capacity input. 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. 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
Quick charge over rate 0.5CA is not recommended.
Storage:
1) Storage Temperature........................-10 C to 45 C
2) Remain trace of charged capacity for prolonged
period of storage.
3) Slow recharging of stored batteries for every 3
months.
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
160
0.1C
0.1C Rate Charging Curves
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
0.2C
0.5C
0.2C/0.5C Rate Charging 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
0.5C 0.2C
1C
Remark: Weight and internal impedence are for reference only.
0.2C / 0.5C / 1C Rate Discharging Curves
1
