I don't think I've read anyone talking about this new state of affairs
for customers getting their cache batteries from IBM:
"But due to recent OSHA requirements, IBM can no longer store and
deliver fully charged cache batteries. IBM now has to store and deliver
these batteries with little or no charge (the concern is that a
warehouse full of charged batteries could explode). As a result,
uncharged cache batteries are now being installed in IBM i machines.
These batteries are then charged after installation, and it can take up
to five hours for the batteries to reach their full charge."
So, get your batteries from IBM and you'll have adverse throughput until
the batteries have been charged fully by the system.