8 standby battery selection – DMP Electronics XR2500F User Manual
Page 27
XR2500F Installation Guide
Digital Monitoring Products
19
InstallatIon
11.8 Standby Battery Selection
To choose the type and number of batteries needed for 24, 60, or 72 hours of standby power based on the
Amp Hours Required calculation from the XR2500F Power Requirements section, perform the following:
1. Select the desired standby hours required from the table below: 24, 60, or 72 hours
2. Select the desired battery size: Model 368 (12 VDC 4.5 Ah), Model 369 (12 VDC 7 Ah),
Model 367 (12 VDC 7.7 Ah), Model 365 (12 VDC 9 Ah), Model 366 (12 VDC 18 Ah).
3. Select a Max. Ah Available number that is just greater than the number calculated as the Amp Hours
Required.
4. Install the number of batteries shown in the corresponding No. of Batteries required column.
Example: If the Amp Hours Required calculation equals 22 Ah for 24 hours of standby time and 4.5 Ah
batteries are desired, install six (6) Model 368 (12 VDC, 4.5 Ah) batteries.
For listed installations, all batteries shall be installed in a DMP Model 341, 349, 350, or 352S enclosure
and all wiring shall run through conduit. The enclosure shall be installed to the left of the XR2500F
enclosure to ensure Battery and AC wire separation.
24 hours of standby power
4.5 Ah Batteries
7 Ah Batteries
7.7 Ah Batteries
9 Ah Batteries
18 Ah Batteries
Max. Ah
Available
No. of
Batteries
Max. Ah
Available
No. of
Batteries
Max. Ah
Available
No. of
Batteries
Max. Ah
Available
No. of
Batteries
Max. Ah
Available
No. of
Batteries
8
2
6
1
6
1
8
1
16
1
12
3
12
2
13
2
16
2
32
2
16
4
18
3
20
3
24
3
48
3
20
5
24
4
27
4
32
4
24
6
31
5
34
5
40
5
28
7
37
6
41
6
32
8
43
7
36
9
Note: 48 hours is the typical battery recharge time for any of the Number of
Batteries shown in this section.
40
10
60 hours of standby power
7 Ah Batteries
7.7 Ah Batteries
9 Ah Batteries
18 Ah Batteries
Max. Ah
Available
No. of
Batteries
Max. Ah
Available
No. of
Batteries
Max. Ah
Available
No. of
Batteries
Max. Ah
Available
No. of
Batteries
13
2
14
2
17
2
17
1
20
3
22
3
26
3
34
2
27
4
29
4
34
4
52
3
33
5
37
5
43
5
69
4
40
6
44
6
52
6
47
7
52
7
61
7
Note: 48 hours is the typical battery
recharge time for any of the Number
of Batteries shown in this section.
54
8
59
8
69
8
60
9
67
9
67
10
72 hours of standby power
9 Ah Batteries
18 Ah Batteries
Max. Ah
Available
No. of
Batteries
Max. Ah
Available
No. of
Batteries
16
2
16
1
25
3
33
2
33
4
50
3
42
5
67
4
50
6
59
7
Note: 72 hours is the typical battery recharge time required for any of the Number
of Batteries shown in this section.
67
8
Note: If the Amp Hours Required calculation is greater than any Max. Ah Available number shown on a table, then
add power supply(s) to power some system devices allowing the Amp Hours Required calculation to be reduced. See
the 710/710F Bus Splitter/Repeater Installation Guide (LT-0310).