Rev. H-070708
P/N VDC24041-MNL
BatteryMINDer
®
Model 24041
Page 2
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.
**East Penn Technical Manual of Valve-Regulated Lead-Acid (VRLA) Absorbed Glass Mat (AGM) Bat-
teries, E.P.M. Form No. 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.
Temp. °F
Optimum
Maximum Optimum
Maximum
Temp. °C
= 120
27.2
27.8
25.6
26
= 49
110 – 120
27.6
28.2
25.8
26.4
43 – 49
100 – 110
27.8
28.4
26
26.6
38 – 43
90 – 100
28
28.6
26.2
26.8
32 – 38
80 – 90
28.2
28.8
26.4
27
27 – 32
70 – 80
28.6
29.2
26.8
27.4
21 – 27
60 – 70
28.9
29.5
27.1
27.7
16 – 21
50 – 60
29.2
29.8
27.4
28
10 – 16
40 – 50
29.6
30.2
27.8
28.4
4 – 10
= 40
30.2
30.8
28.4
29
= 4
AGM Charge and Float Voltages at Various Temperature Ranges**
Temp. °F
Optimum
Maximum Optimum
Maximum
Temp. °C
= 120
27.2
27.8
25.6
26
= 49
110 – 120
27.6
28.2
25.8
26.4
43 – 49
100 – 110
27.8
28.4
26
26.6
38 – 43
90 – 100
28
28.6
26.2
26.8
32 – 38
80 – 90
28.2
28.8
26.4
27
27 – 32
70 – 80
28.6
29.2
26.8
27.4
21 – 27
60 – 70
28.9
29.5
27.1
27.7
16 – 21
50 – 60
29.2
29.8
27.4
28
10 – 16
40 – 50
29.6
30.2
27.8
28.4
4 – 10
= 40
30.2
30.8
28.4
29
= 4
AGM Charge and Float Voltages at Various Temperature Ranges**
