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Temperature Compensation
975-0004-01-02 Rev D 35
Table 2-2
Variances in Charging Voltage based on Battery Temperature
Temperature
(around the BTS) 12-volt units 24-volt units 48-volt units
Celsius Fahrenheit
Lead
Acid
(6 cells)
NiCad
(10 cells)
Lead
Acid
(12 cells)
NiCad
(20 cells)
Lead
Acid
(24 cells)
NiCad
(40 cells)
60 140 -1.05 -0.70 -2.10 -1.40 -4.20 -2.80
55 131 -0.90 -0.60 -1.80 -1.20 -3.60 -2.40
50 122 -0.75 -0.50 -1.50 -1.00 -3.00 -2.00
45 113 -0.60 -0.40 -1.20 -0.80 -2.40 -1.60
40 104 -0.45 -0.30 -0.90 -0.60 -1.80 -1.20
35 95 -0.30 -0.20 -0.60 -0.40 -1.20 -0.80
30 86 -0.15 -0.10 -0.30 -0.20 -0.60 -0.40
25 77 0.00 0.00 0.00 0.00 0.00 0.00
20 68 0.15 0.10 0.30 0.20 0.60 0.40
15 59 0.30 0.20 0.60 0.40 1.20 0.80
10 50 0.45 0.30 0.90 0.60 1.80 1.20
5 41 0.60 0.40 1.20 0.80 2.40 1.60
0 32 0.75 0.50 1.50 1.00 3.00 2.00
-5 23 0.90 0.60 1.80 1.20 3.60 2.40
-10 14 1.05 1.20 2.10 1.40 4.20 2.80
-15 5 1.20 0.80 2.40 1.60 4.80 3.20
-20 -4 1.35 1.40 2.70 1.80 5.40 3.60
-25 -13 1.50 1.00 3.00 2.00 6.00 4.00
-30 -22 1.65 1.10 3.30 2.20 6.60 4.40
-35 -31 1.80 1.20 3.60 2.40 7.20 4.80
-40 -40 1.95 1.30 3.90 2.60 7.80 5.20