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TrakMax 30L User Manual
Revision 1.0
Automatic temperature compensation can be provided through use of the optional Temperature Sensor Kit (Part
#: CHC-BTSC-02) that includes two temperature sensor cables and the required connector to interface with the
TrakMax. Please contact your Windy Nation supplier for availability.
3.8.1
Temperature Compensation
Temperature compensation is based on battery type-5mv/cell for lead acid type batteries and 2mv/cell for
alkaline type batteries (NiCad or NiFe). The temperature compensation calculations are derived from the
following table:
Battery Type
Lead Acid
NiCad
The table below describes approximately how much the voltage may vary depending on the temperature of the
batteries:
Temperature
Celsius Fahrenheit
60
55
50
45
40
35
30
25
20
15
10
5
0
-5
-10
-15
-20
-25
-30
-35
-40
3.8.2
Battery Temperature Sensor – BTS (BAT)
The Battery Temperature Sensor will sense battery temperature and will adjust charging to protect the
battery from permanent damage.
When the BTS detects a temperature of 40
reduce heat dissipation.
Page 12 of 29
12 Volt Units
0.03 volts (30mv) per
degree Celsius
0.02 volts (20mv) per
degree Celsius
12 Volt Units
Lead Acid
Lead Acid
(6 cells)
(12 cells)
140
-1.05
131
-0.90
122
-0.75
113
-0.60
104
-0.45
95
-0.30
86
-0.15
77
0
68
0.15
59
0.30
50
0.45
41
0.60
32
0.75
23
0.90
14
1.05
5
1.20
-4
1.35
-13
1.50
-22
1.65
-31
1.80
-40
1.95
Variances in charging voltage based on battery temperature
24 Volt Units
0.06 volts (60mv) per
degree Celsius
0.04 volts (40mv) per
degree Celsius
24 Volt Units
Lead Acid
NiCad
(12 cells)
(20 cells)
-2.1
-2.1
-1.8
-1.8
-1.5
-1.5
-1.2
-1.2
-0.9
-0.9
-0.6
-0.6
-0.3
-0.3
0
0
0.3
0.3
0.6
0.6
0.9
0.9
1.2
1.2
1.5
1.5
1.8
1.8
2.1
2.1
2.4
2.4
2.7
2.7
3.0
3.0
3.3
3.3
3.6
3.6
3.9
3.9
o
o
C (104
F) the TrakMax will reduce the charge current by 50% to
windynation
48 Volt Units
0.12 volts (120mv) per
degree Celsius
0.08 volts (80mv) per
degree Celsius
48 Volt Units
Lead Acid
NiCad
(24 cells)
(40 cells)
-1.4
-4.2
-1.2
-3.6
-1.0
-3.0
-0.8
-2.4
-0.6
-1.8
-0.4
-1.2
-0.2
-0.6
0
0
0.2
0.4
0.4
0.8
0.6
1.8
0.8
2.4
1.0
3.0
1.2
3.6
1.4
4.2
1.6
4.8
1.8
5.4
2.0
6.0
2.2
6.6
2.4
7.2
2.6
7.8
-2.8
-2.4
-2.0
-1.6
-1.2
-0.8
-0.4
0
0.4
0.8
1.2
1.6
2.0
2.4
2.8
3.2
3.6
4.0
4.4
4.8
5.2
05/06/2015
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