iPod Nano video recording time?

From the manual:

I've done some preliminary, semi-unscientific testing of file sizes with the nano, mainly by making several different videos each lasting one minute (plus/minus one second). The average file size (and thus file size per minute) turns out to be 19.1 Mb (with very little deviation). That means that 1 Gb will hold about 53 minutes of recorded video.

Further extrapolation, from StingerT125's comment: The maximum file size is 2 Gb, so the longest single recording will be approximately 1 hour and 46 minutes.

So, considering that the battery is good for four hours of video playback, you may be able to get two 2 Gb recordings before having to recharge.

ipod nano 5th generation video recording tested ....

I made some test with ipod nano 5th generation video recording ....

Video Time: 1h 48min 08sec

File size: 2.15GB (2 139 235 kb)

Battery was almost completely depleted ...

I've managed to record another 10 min of video before complete discharge ...
9:55 min
199.2 mb


So it seems, that with video recording, battery life is HALF less
of what was claimed for video playback ... ~2 hours