In article , rickman
wrote:

"unless failure has occurred due to a defect in materials or workmanship."

it's not a defect in materials or workmanship.

*all* batteries degrade over time. there is no getting around that, at
least with today's technology.

maybe at some point in the future there will be an eternal power source
that never wears out. that time is not now.

Yep, all batteries degrade with time and use.

exactly the point.

But the batteries in question
degraded more and faster than Apple expected requiring action on their part
after the sale.

no they didn't.

they are well within normal expected range.