Chapter 2. Installation and System Checkout
2-18
age is required for full charge. Control of battery charge
voltage relative to ambient temperature prolongs battery life.
The chart below shows the proper range of battery voltage
across the specified operating range of the equipment. The
chart is for 12-cell battery sets, with nominal 24V rating.
Table 2-6 Voltage Versus Temperature
Temp
(C)
Temp
(F)
V/cell
(min.)
V/cell
(max)
Min.
Battery
Voltage
Max.
Battery
Voltage
0 32 2.294 2.367 27.53 28.40
5 41 2.284 2.352 27.41 28.22
10 50 2.274 2.337 27.29 28.04
15 59 2.264 2.322 27.17 27.86
22.2 72 2.250 2.300 27.00 27.60
25 77 2.244 2.292 26.93 27.50
30 86 2.234 2.277 26.81 27.32
35 95 2.224 2.262 26.69 27.14
40 104 2.214 2.247 26.57 26.96
45 113 2.204 2.232 26.45 26.78
49 120.2 2.196 2.220 26.36 26.64
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