I got 28 1/2 days off of my first battery charge (K3 Wi-Fi)

Quake1028 · 09-21-2010, 05:19 PM

I keep wireless off all the time, unless needed. When I am done with the Kindle, I flick it off immediately, I don't wait for it to sleep. I read about 2-3 hours per day. I might have taken 1 or 2 days off there, but that's still pretty close to what Amazon claimed.

Tiersten · 09-21-2010, 05:25 PM

Interesting. Nice to see that their estimate was about right.

NavyDad6 · 09-21-2010, 08:23 PM

That is pretty dang impressive!

I am good with the K2 for now, but as a deployed sailor, battery life is VERY important.

I sure hope they keep this battery life for the K4, that is where I figure I will upgrade.

sirmaru · 09-21-2010, 08:53 PM

I keep WiFi on all the time since I Sync highlights, notes and bookmarks between my K3 WiFi and my Kindle for PC application.

That way I can read on both and its like reading with one application only.

If you keep WiFi off, you may forget to Sync both before and after every reading session.

Quake1028 · 09-22-2010, 12:19 AM

Yeah, I don't have to worry about syncing, so no need to leave Wi-Fi on all the time, for me at least.

Viseguy · 09-22-2010, 12:39 AM

I got 3 weeks on my first charge, with Wi-Fi off most of the time. I use the slider to put the K3 to sleep when I finish reading. Maybe I would get 4 weeks if I turned it off?

Sleep mode is convenient, though. And 3 weeks is pretty good, IMO.

mrzerga · 09-22-2010, 03:45 AM

what were your book uploading patterns?

i uploaded some 10 - 20 books at a time per week in the past ~4 weeks, I charged Kindle again in the beginning of last week (at ~15-20% of battery charge, as some manuals recomend it) after two weeks use. I am already at half of my charge for the second charging. I did read some posts that indexing can really drain battery. Wifi only to get books wirelessly - off after that.

How's everybody's else batteries doing?
Also how critical is the first charge in your opinion? I think I might have underchaged Kindle the first time i used it.

robins777 · 09-22-2010, 04:21 AM

I have had mine nearly 3 weeks and have just charged mine for the third time. I now have about 300 book on it, half downloaded through the Wi-Fi, so I expect that and the indexing is what is taking a lot of battery power I read about 3 hours a day sometimes more and keep forgetting to turn the Wi-Fi off.

TenaciousBadger · 09-22-2010, 06:33 AM

i was curious about this too. glad to see an estimate.
i haven't had the patience to let the battery drain. i usually charge the device once it's past the halfway mark (takes about 2h and 1/2 to get back "green").

hahaha: just noticed your K3 wifi is called Raistlin!!!! l-o-l someone else reading dragonlace. great character!

Solicitous · 09-22-2010, 07:34 AM

The wife has had hers 3 weeks now and is running at about 1/4 charge left (time for recharge). Been used anywhere between 1-3 hours a day, wifi is only switched on when surfing the amazon store or syncing. The Kindle only has around 20 books on it so not too much indexing going on.

The first couple of days she had it I used it reasonably heavy having a good play with it (considering it was meant to be mine....).

Quake1028 · 09-22-2010, 08:39 AM

Quote:

Originally Posted by mrzerga

what were your book uploading patterns?

I put around 75 books on it on the first go. After that, I put one book or so here and there via Calibre and Wi-Fi. I have around 90 books on it right now, IIRC.

Quake1028 · 09-22-2010, 08:40 AM

Quote:

Originally Posted by Viseguy

I got 3 weeks on my first charge, with Wi-Fi off most of the time. I use the slider to put the K3 to sleep when I finish reading. Maybe I would get 4 weeks if I turned it off?

Sleep mode is convenient, though. And 3 weeks is pretty good, IMO.

I should have been more clear in my post: I do exactly what you do. I meant I don't wait for the Kindle to auto sleep. I don't turn it all the way off, just to the screensaver.

Lordblacknail · 09-22-2010, 10:11 AM

I am not seeming to get that kind of battery life. I have 1200 books on my K3 3G, and I read sometimes 8 hours per day, and in a day or so, I am down to 1/4 battery life. I keep the WiFi off all the time.

ProfCrash · 09-22-2010, 10:44 AM

Quote:

Originally Posted by Lordblacknail

I am not seeming to get that kind of battery life. I have 1200 books on my K3 3G, and I read sometimes 8 hours per day, and in a day or so, I am down to 1/4 battery life. I keep the WiFi off all the time.

Downloading and indexing 1,200 books crushed your K3 initially. I know my DX needed to be recharged pretty quick after I downloaded 400 books on the first day. I want to say that I had to charge it 4 hours after I charged it the first time when I did that. So 1,200 books would account for a fair amount of battery drain. Once you start adding a book here, a book there you will notice better battery life.

The estimates are based on people who read an average amount, I would guess that average means 2 hours a day. The people who are getting a month long charge are reading 1-3 hours a day. Since you read 8 hours a day, you are closer to doing 4 average days reading in one sitting.

If you have finished your book dump and sort and continue to read 8 hours a day, I would expect that you would need to charge your Kindle once a week.

All numbers are based on vague memories and guesses at what is meant by the average reader.

c861556 · 09-22-2010, 11:57 AM

Keep in mind that if you connect it to a PC through a micro-USB cable, the device will fully charge itself in about 4 to 6 hours.

09-21-2010, 05:19 PM	#1
Quake1028 Guru Posts: 917 Karma: 9155462 Join Date: Jul 2010 Location: Tampa, FL Device: See signature	I got 28 1/2 days off of my first battery charge (K3 Wi-Fi) I keep wireless off all the time, unless needed. When I am done with the Kindle, I flick it off immediately, I don't wait for it to sleep. I read about 2-3 hours per day. I might have taken 1 or 2 days off there, but that's still pretty close to what Amazon claimed.

09-21-2010, 08:53 PM	#4
sirmaru Wizard Posts: 2,426 Karma: 6561538 Join Date: Nov 2007 Device: Kindle PW 2013, HDX 2013, Galaxy S5 2014	Keeping WiFi off hurts syncing. I keep WiFi on all the time since I Sync highlights, notes and bookmarks between my K3 WiFi and my Kindle for PC application. That way I can read on both and its like reading with one application only. If you keep WiFi off, you may forget to Sync both before and after every reading session.

09-22-2010, 03:45 AM	#7
mrzerga Connoisseur Posts: 59 Karma: 7060 Join Date: Sep 2010 Device: kindle 3 wifi - love it	what were your book uploading patterns? i uploaded some 10 - 20 books at a time per week in the past ~4 weeks, I charged Kindle again in the beginning of last week (at ~15-20% of battery charge, as some manuals recomend it) after two weeks use. I am already at half of my charge for the second charging. I did read some posts that indexing can really drain battery. Wifi only to get books wirelessly - off after that. How's everybody's else batteries doing? Also how critical is the first charge in your opinion? I think I might have underchaged Kindle the first time i used it. Last edited by mrzerga; 09-22-2010 at 03:47 AM.

09-22-2010, 06:33 AM	#9
TenaciousBadger Mrawr? Posts: 1,109 Karma: 15039064 Join Date: Aug 2010 Device: kindle 3 wifi	i was curious about this too. glad to see an estimate. i haven't had the patience to let the battery drain. i usually charge the device once it's past the halfway mark (takes about 2h and 1/2 to get back "green"). hahaha: just noticed your K3 wifi is called Raistlin!!!! l-o-l someone else reading dragonlace. great character! Last edited by TenaciousBadger; 09-22-2010 at 06:37 AM.

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09-21-2010, 05:25 PM	#2
Tiersten Guru Posts: 987 Karma: 8641 Join Date: Sep 2010 Device: Kindle 3G+WiFi	Interesting. Nice to see that their estimate was about right.

09-21-2010, 08:23 PM	#3
NavyDad6 Reading is FUNdamental Posts: 233 Karma: 1516 Join Date: Feb 2009 Location: WA state Device: Kindle 2	That is pretty dang impressive! I am good with the K2 for now, but as a deployed sailor, battery life is VERY important. I sure hope they keep this battery life for the K4, that is where I figure I will upgrade.

09-22-2010, 12:19 AM	#5
Quake1028 Guru Posts: 917 Karma: 9155462 Join Date: Jul 2010 Location: Tampa, FL Device: See signature	Yeah, I don't have to worry about syncing, so no need to leave Wi-Fi on all the time, for me at least.

09-22-2010, 12:39 AM	#6
Viseguy Just a kid from Bklyn Posts: 135 Karma: 4448 Join Date: Aug 2010 Location: NYC Device: Kindle 3 Wi-Fi; Samsung Galaxy Tab 7	I got 3 weeks on my first charge, with Wi-Fi off most of the time. I use the slider to put the K3 to sleep when I finish reading. Maybe I would get 4 weeks if I turned it off? Sleep mode is convenient, though. And 3 weeks is pretty good, IMO.

09-22-2010, 04:21 AM	#8
robins777 Enthusiast Posts: 31 Karma: 10 Join Date: Aug 2010 Location: Wigan UK Device: Kindle 3-- Archos 5 A	I have had mine nearly 3 weeks and have just charged mine for the third time. I now have about 300 book on it, half downloaded through the Wi-Fi, so I expect that and the indexing is what is taking a lot of battery power I read about 3 hours a day sometimes more and keep forgetting to turn the Wi-Fi off.

09-22-2010, 07:34 AM	#10
Solicitous Wizard Posts: 1,434 Karma: 1525776 Join Date: Aug 2009 Location: TAS, Australia Device: Astak Pocket Pro (Black), 2 x Kindle WiFi (Graphite), iPod Touch 4G	The wife has had hers 3 weeks now and is running at about 1/4 charge left (time for recharge). Been used anywhere between 1-3 hours a day, wifi is only switched on when surfing the amazon store or syncing. The Kindle only has around 20 books on it so not too much indexing going on. The first couple of days she had it I used it reasonably heavy having a good play with it (considering it was meant to be mine....).

09-22-2010, 10:11 AM	#13
Lordblacknail Groupie Posts: 159 Karma: 330000 Join Date: Aug 2010 Location: Tampa, Florida Device: Kobo Libre 2 Galaxy Tab S7 Plus Kobo Libre Colour	I am not seeming to get that kind of battery life. I have 1200 books on my K3 3G, and I read sometimes 8 hours per day, and in a day or so, I am down to 1/4 battery life. I keep the WiFi off all the time.

09-22-2010, 11:57 AM	#15
c861556 Enthusiast Posts: 34 Karma: 586 Join Date: Sep 2010 Device: Kindle	Keep in mind that if you connect it to a PC through a micro-USB cable, the device will fully charge itself in about 4 to 6 hours.

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