P/N 752-648 Rev. 20121017 IR
Page
8 of 12
Temperature Sensor
The charger output cable features a built-in temperature sensor near the red SB50 plug to provide an
indication of ambient temperature to the BatteryMINDer’s control circuitry. The chart below shows the
need to regulate the voltage of the charger to ensure against over or under charging over a wide range of
temperatures.
Ambient Temperature
Optimum Output Voltage
°F
°C
Charge
Maintain
> 120
> 49
26.8
25.8
115
46
27.2
26.0
105
41
27.4
26.2
95
35
27.6
26.4
85
29
27.8
26.6
75
24
28.2
27.0
65
18
28.5
27.5
55
13
28.5
27.9
45
7
29.2
28.3
> 40
> 4
29.8
28.8
The values shown in
RED
are based on date supplied by Concorde Battery Co., Sept 2010. Values for
batteries from other aviation battery manufacturers may vary slightly, but are believed to be comparable.
We strongly recommend checking with the appropriate dealer or battery manufacturer to be certain.
Temperature also has a direct effect on the life of a battery. The design life of the battery is based on an
average annual temperature of
2
5°C (77°F). As the temperature increases, the life of the battery
decreases. For example, at an average annual battery temperature of 35°C (95°F) the life of the battery
will be reduced by 50%.
