DR800 Turning off 3G lengthen battery life or not?

[bokjeid]

Originally Posted by Shaggy

Are you talking about a Kindle or a DR800? I have no idea if it effects the battery life of a Kindle, that's a completely different question.

I didn't focus on what device, but on 3G itself. The point is that I couldn't guess how 3G function runs on Kindle, which is different from DR800SG - on Kindle, it is on all the time as it was mentioned here otherwise on DR800SG, it's on only if we connect to the network.
In addition, I couldn't guess that Kindle's battery life is so longer than DR800SG's which has the largest battery capacity(2800mAh). Anyway, I prefer DR800SG to Kindle.

[zinj]

[QUOTE=Shaggy;1060401
Although, these days the 3G impact on DR800 battery life is even less, since the 3G has been disabled due to the Bankruptcy. [/QUOTE]

Yes, it seems this discussion is now pointless. I'm surprised by the lack of complaints here on the demise of this significant feature.

[Shaggy]

Originally Posted by bokjeid

In addition, I couldn't guess that Kindle's battery life is so longer than DR800SG's which has the largest battery capacity(2800mAh).

What makes you think the Kindle's battery life is longer?

You mentioned that the Kindle said 4 days to 2 weeks (depending on 3G). I get 2 weeks battery life on my DR800S.

[bokjeid]

Originally Posted by Shaggy

What makes you think the Kindle's battery life is longer?

You mentioned that the Kindle said 4 days to 2 weeks (depending on 3G). I get 2 weeks battery life on my DR800S.

Really?? In my case, my DR800SG doesn't go over a week although I don't use it much time daily. Then, as mentioned by people in another thread, it seems totally different case by case. I assume it may depend on how much time you use the device and what you do with the device. For example, I saw that some PDFs need far more cpu usage for loading than others and perhaps it'd shorten the battery life as well with or without scribbling.
And I don't have interest on Kindle and even haven't seen a real one, but just saw it and its specifications on 'MobileRead Wiki - E-book Reader Matrix'.

[bran]

Originally Posted by bokjeid

Really?? In my case, my DR800SG doesn't go over a week although I don't use it much time daily. Then, as mentioned by people in another thread, it seems totally different case by case. I assume it may depend on how much time you use the device and what you do with the device. For example, I saw that some PDFs need far more cpu usage for loading than others and perhaps it'd shorten the battery life as well with or without scribbling.
And I don't have interest on Kindle and even haven't seen a real one, but just saw it and its specifications on 'MobileRead Wiki - E-book Reader Matrix'.

In my case the DR800 will definately reach 2 weeks. I used it intensively during a short 8 day holiday. It was fully charged on a Sunday and Monday 1 week later the charge was at 50% I read 7 books in that time each about 500 to 600 pages long.

I am using the beta firmware and that may make a difference

regards Bran

[bokjeid]

Originally Posted by bran

In my case the DR800 will definately reach 2 weeks. I used it intensively during a short 8 day holiday. It was fully charged on a Sunday and Monday 1 week later the charge was at 50% I read 7 books in that time each about 500 to 600 pages long.

I am using the beta firmware and that may make a difference

regards Bran

Well, it seemed that there is some difference even among the same models. For another example, most of gray surface coating of mine fell away for itself for several months otherwise others' don't. Maybe it didn't seem a common case.
And your case seems a case of 'epub' files or so - refering to the flickering led, perhaps some PDF files needs much more CPU usage, in other words, battery power. This can be one factor which makes battery life vary like what I said.
btw, I don't suspect the battery life of DR800SG is shorter than other devices and I didn't complain about it. Just I was confused with the relation between 3G and battery for a moment after seeing the matrix here, but it was already solved.

[Shaggy]

Originally Posted by bokjeid

Really?? In my case, my DR800SG doesn't go over a week although I don't use it much time daily.

I get two weeks with a few hours per day of reading.

There are a couple issues with certain documents or document types that can prevent the device from going into sleep mode correctly. That may be part of your problem. They addressed some of that in the beta firmware, but I'm not sure if they've completely solved it yet.

[bran]

Originally Posted by Shaggy

I get two weeks with a few hours per day of reading.

There are a couple issues with certain documents or document types that can prevent the device from going into sleep mode correctly. That may be part of your problem. They addressed some of that in the beta firmware, but I'm not sure if they've completely solved it yet.

To reiterate. My 8 day holiday was not a few hours of reading it was between 5 and 6 hours a day. That also included several demo's to people interested in what an e-reader could do. I am very impressed with battery life at this point. I must also add that, during the holiday, I read epub's and not pdf's. I can imagine that PDF rendering without reflow may require extra CPU cycles. The barnes and noble epub samples that require 2 to 3 minutes of counting pages, will obvoiusly impact battery lifetime. In fact the first time I opened one of the samples I was really worried that the reader had crashed. It hadn't but that's how it felt.

I do believe the new firmware helps. During the holiday the DR800 a friend of mine bought for his wife, also only epub's, with much less intensive use ran out of charge much faster. Mine after 8 days 50% hers after 8 days almost empty (under 25%,) I did not personally check the figures.

HTH Bran

[Shaggy]

The numbers I got were based off of PDF reading. I've only used ePubs a couple times, and not when I was measuring the battery life.