Capacity will gradually decay from fresh battery value to the aged battery value, with the amount of decay
shown being worst case. The system will diagnose a "failed battery" if the capacity falls below the aged
battery level.
Typical Machine Holdup Time vs. Load in Minutes (Fresh Battery)
Machine
3 kW
Load
IBF
N
R
Configuration
1 BPR
7.0
21
2 BPR
21
50
3 BPR
32
68
N = non-redundant, R = redundant
Typical Machine Holdup Time vs. Load in Minutes (Aged Battery)
Machine
3 kW
Load
IBF
N
R
Configuration
1 BPR
4.2
12.6 1.3
2 BPR
12.6
30
3 BPR
19.2
41
N = non-redundant, R = redundant
6 kW
9 kW
N
R
N
R
2.1
7.0
7.0
21
4.0
11
12
32
7.0
21
6 kW
9 kW
N
R
N
R
4.2
4.2
12.6
2.4
6.6
7.2
19.2
4.2
12.6
12 kW
15 kW
N
R
N
R
2.1
7.0
4.9
12
3.2
9.5
12 kW
15 kW
N
R
N
R
1.3
4.2
2.9
7.2
1.9
5.7
Chapter 2. Physical Characteristics of Systems
18 kW
19.5 kW
N
R
N
R
2.1
7.0
1.7
6.5
18 kW
19.5 kW
N
R
N
R
1.3
4.2
1.0
3.9
181