Originally Posted by skamp This
states that the original battery in the latest iPod is 850 mAh…
If only this was accurate...
First, I would never take for granted the technical information on a rather anonymous website which brags about offering 10 years of guarantee for a battery. On a general note, if you search the internet on the subject of iPod classic battery capacity, you'll get various results, depending on the mood of the person in charge of marketing the replacement. This is not what I would call a reference.
Second, packing 850mAh in a tiny battery as in the latest Classic is virtually impossible with today's mass market technology. If you've seen the battery in the Classic and are familiar with Li-Ion or Li-Pol technology you would quickly understand.
And third and most important, if you read carefully the linked page you'll see that the battery is advertised as a replacement for 6th generation. The battery for the 80 and 120 GB iPod (slim) has 580mAh, only the one for the 160GB iPod (which for 6G is thick) is said to be of 850mAh.