Did I damage the battery of my S545?

[Cain]

I got my Walkman two weeks ago and have filled it with music since. At the rate I buy/rip CDs, I would plug it into the USB at least two times a day, every day, to add new/remove old content. Because of that, I have never let the battery fully drain even once, usually keeping it at ~80%. I have never used it for video.

Today, I took it to class and used the voice recording feature during 4 hours and the battery is already at 50%. I had charged it the night before I took it to campus. Did I damage the overall battery life of my DAP? Any way I can fix it? Looking back, the first quarter of the battery always DID drain rather fast with just 256 kbps music.

[CrowdAds]

[Marvin the Martian]

I don't think it is anything to worry about.

[Cain]

The (assumed) drop in battery life is nothing to worry about or the player itself has an erratic battery meter (say, the first half lasts 8 hours, the other lasts 34)?

[Marvin the Martian]

I just think that the voice recording is a much higher power drain than anything else you would do with the player, outside of watching a video.

I never timed my S545's battery life when I had it, but it never ran out on me and seemed to run for a very long time.