BatteryMINDer SCC180 - Manual (Page 9)

BatteryMINDer ® Model SCC180
Rev. B-073108 Page  P/N VDCSCC180-MNL
For example: If a battery’s design life is 10 years at 25°C (77°F), but the average battery
temperature is 35°C (95°F), the life of the battery will be only 5 years a 50% decrease.
*GNB Industrial Power, A Division of Exide Technologies, Section 92.30 Part No. Z99-
Mar/Sep I&O REV 10/01
The chart below shows the need to regulate the output voltage of the
charger to ensure against over or under charging your battery over a wide
range of temperatures. Using your At-the-Battery Sensor will accomplish
this better than any other known method.
Effects of Temperature on Battery Life*
Maximum Annual Average
Battery Temperature
Maximum Battery Tem-
perature
Percent Reduction in
Battery Life
25°C (77°F) 50°C (122°F) 0%
30°C (86°F) 50°C (122°F) 30%
35°C (95°F) 50°C (122°F) 50%
40°C (104°F) 50°C (122°F) 66%
45°C (113°F) 50°C (122°F) 75%
50°C (122°F) 50°C (122°F) 83%
25°C (77°F) 50°C (122°F) 0%
AGM Charge and Float Voltages at Various Temperature Ranges**
Temp
°F
Charge Float Temp
°C
Optimum Maximum Optimum Maximum
10 13.60 13.0 1.80 13.00 49
110 – 120 13.80 14.10 1.0 13.0 43 – 49
100 -110 13.0 14.20 13.00 13.30 38 – 43
90 – 100 14.00 14.30 13.10 13.40 32 – 38
80 – 90 14.10 14.40 13.0 13.50 27 – 32
70 – 80 14.30 14.60 13.40 13.70 21 – 27
60 – 70 14.45 14.75 13.55 13.85 16 - 21
50 – 60 14.60 14.90 13.70 14.00 10 - 16
40 – 50 14.80 15.10 13.0 14.20 4 - 10
40 15.10 15.40 14.20 14.50 4
**East Penn Technical Manual of Valve-Regulated Lead-Acid (VRLA) Absorbed Glass Mat (AGM)
Batteries, E.P.M. Form No. 0139 Rev. 3/04
Note: The above chart shows the Charge and Float voltage ranges v. temperature for sealed
24-Volt AGM type batteries. Values will differ for sealed Gel or Flooded (filler cap) or
maintenance-free types.