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 Load 3 kW 6 kW
IBF Configuration N R N R
1 BPR 7.0 21 2.1 7.0
N = non-redundant, R = redundant
Typical Machine Holdup Time vs. Load in Minutes (Aged Battery)
Machine Load 3 kW 6 kW
IBF Configuration N R N R
1 BPR 4.2 12.6 1.3 4.2
N = non-redundant, R = redundant
Chapter 2. Physical Characteristics of Systems 143
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