My laptop PC at was part of the Dell battery recall, and Dell seems indifferent about getting the old batteries back. I cracked open the pack and it is essentially a 2s3p pack. The cells are metal cans about 5/8" diameter and about 2-1/2" long. The entire pack out of the case weighs about 10 oz. The pack is rated at 4700mah.

So....
Any ideas on what the C rating for these cells would be?
Anyone know if the Sony battery recall was based on problems with the cells or a problem with the charging system?

The weight seems tolerable for the capacity. If these packs are suitable for flight use, there are a lot of free batteries packs (millions) available right now