Quote:
Originally Posted by catharsis
About why I was unhappy about battery: 6% seemed ok in the first day, 8% a bit much. I suppose Li-Ion batteries don't discharge linearly, so I'll be monitoring the device few more days, just because I'm curious.
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It could be the battery discharge is slightly variable, it could also be that the percentage the battery meter is reporting back to the device isn't really that precise. When the meter says 92%, does it really have the ability to measure it down to 1% at a time, or is it doing some extrapolating? For now, I'd probably average your two numbers out and say it was 14% over 2 days, so roughly 7% per day. I think looking at it in longer intervals than 24 hours would help get rid of any minor inconsistencies as well.
What I did when I first got my DR800 was to charge it up to 100% and then make note of the date. Then I just used it normally without doing any more recharges until the battery completely died and it shut itself down. I forget the exact number (it's in a post on here somewhere) but it was around 2 weeks. Then I averaged that out and estimated that it will discharge approximately 7% per day.
That's going to be effected by usage patterns though. I typically only used it for reading a couple hours a day, so a heavier user would see more discharge. Also, using features like the stylus and 3G will drain the battery faster, etc. Everybody's usage pattern will probably be a little different.
It sounds to me like you're in the ballpark for what the device is expected to do though.