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Over-Discharge Current
(c)
Protection
(c)
Recovery
Over-temperature in Discharge
(d)
Protection
(d)
Recovery
Under-temperature in Discharge
(d)
Protection
(d)
Recovery
Over-temperature in Charge
(d)
Protection
(d)
Recovery
Under-temperature in Charge
(d)
Protection
(d)
Recovery
(a)
Overvoltage protection monitors individual cell voltages. Protection is triggered when any cell is over 3.65 VPC
and recovers after 120 seconds. Charge is permitted when VPC is 3.35 or less. Voltages are provided for guidance
only.
(b)
Undervoltage protection monitors the voltage of individual cells. Protection is triggered for any cell below 2.5
VPC for 5 seconds, and then the battery is automatically set OFF after 120 seconds. Manually set the battery ON
to recover. Voltages are provided for guidance only.
(c)
For time versus current interrupt details, see Figure 2, Over-Discharge Protection Time Current Curve.
(d)
Specifies the temperature of the cells and not the ambient temperature. Ambient temperature and cell
temperature may not be the same.
100000
10000
1000
100
10
1
0.1
00.1
000.1
-
100
Figure 1. Over-Discharge Protection Time Current Curve
3-second rating
300 A
Recovery after 120 seconds
Cell temperature above 60°C (140°F) for 5
seconds
Cell temperature below 50°C (122°F)
Cell temperature below -20°C (-4°F) for 5 seconds.
Cell temperature above -18°C (0°F)
Cell temperature above 60°C (140°F) for 5
seconds
Cell temperature below 50°C (122°F)
Cell temperature below 0°C (32°F) for 5 seconds
and charge current detected.
Charge recovery temperature above 2°C (36°F)
Note: Discharge is available to -20°C (-4°F)
Over -Current Curve
200
300
400
500
600
700
800
Current[A]
8
900 1,000 1,100 1,200
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