IBM RS/60000 Series Site And Hardware Planning Information page 161

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