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| 2. General
Characteristics |
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2.1
Discharging
2.1.1 Final Discharging
Voltage
The final discharging voltage
is the battery terminal voltage in close circuit voltage per
cell to which a battery discharging safely and maximize
battery life. The higher discharging current, the lower final
discharging voltage of battery .
|
Discharging Current |
Final Discharging
Voltage(VPC) |
|
Up to 0.1CA |
1.75 |
|
0.11-0.17CA |
1.70 |
|
0.18-0.25CA |
1.67 |
|
0.26-1CA |
1.60 |
|
Above 1.1CA |
1.30 |
2.1.2 Battery
Discharging Characteristics:
The
discharging capacity of battery is depended on the discharge
rate being used and ambient temperature.
Figure 1,2 and
3 show the different discharging current corresponding
discharging capacity at 25oC(77oF) for
GPS, GPM and GPL types batteries. They show that the rated
capacity of a battery is reduced when it is discharged at a
value of current that exceeds its 10-hours or 20-hours rate.
2.1.3
Temperature Effects in Relation to Battery Capacity.
At a higher temperature, the capacity of
battery increases and conversely at a lower temperature, the
capacity of battery decreases. Figure 4 shows the effects of
different temperature in relation to battery capacity.
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