Battery life between 3G and 3G + Wifi version

gase888 · 06-19-2011, 02:50 AM

I'm about to get the kindle 3 and now choose between the two versions (sorry that it might be late for most of you here). However, the major consideration for me would be the battery life. Certainly I'm not expecting to have battery life of over a month as stated by Amazon under normal use but a long battery life for an ebook is definitely crucial.

My question is what's the battery consumption for wifi and 3G?
Can I turn 3G off manually (i know i can do it for wifi to save battery and turn on when necessary)? If not, does it mean the battery consumption is much larger for 3G since it's on all the time and looking for proper signal?

I love the 3G feature but also appreciate a long battery life, hope someone can advise.

HarryT · 06-19-2011, 03:20 AM

You certainly can expect a battery life of over a month. I easily get that on my 3G Kindle. Yes, best idea is to only turn the radio on when you need it, which is simply done via a menu item.

kranu · 06-19-2011, 04:37 AM

When you are using 3G, the battery life is very weak (I get maybe three or four days). However, when you are using WiFi or nothing at all, the battery life is about the same for both Kindles. As HarryT says, only enable wireless when you need it (buying books).

You can either turn on or turn off wireless. Wireless includes both WiFi and 3G. The Kindle 3G automatically switches to 3G when it can't find any recognized WiFi access points.

gase888 · 06-19-2011, 12:03 PM

Thanks. It's great to find a site with lots of pros like you all.
And also thanks for the response.

Outrager · 06-19-2011, 06:17 PM

Also, when you add a new book it will index it and that eats a lot of battery life. So if you are going on a long trip or something and can't charge it stock up on the books you know you're going to read and keep it charged while it indexes the books before you take it with you.

emalvick · 06-20-2011, 04:27 PM

Quote:

Originally Posted by Outrager

Also, when you add a new book it will index it and that eats a lot of battery life. So if you are going on a long trip or something and can't charge it stock up on the books you know you're going to read and keep it charged while it indexes the books before you take it with you.

I think this author means keep it plugged in. I've found the best way to go when adding multiple books is to let the Kindle sit plugged in over-night while it indexes things.

06-19-2011, 02:50 AM	#1
gase888 Junior Member Posts: 2 Karma: 10 Join Date: Jun 2011 Location: hong kong Device: Kindle 3 3G+Wifi	Battery life between 3G and 3G + Wifi version I'm about to get the kindle 3 and now choose between the two versions (sorry that it might be late for most of you here). However, the major consideration for me would be the battery life. Certainly I'm not expecting to have battery life of over a month as stated by Amazon under normal use but a long battery life for an ebook is definitely crucial. My question is what's the battery consumption for wifi and 3G? Can I turn 3G off manually (i know i can do it for wifi to save battery and turn on when necessary)? If not, does it mean the battery consumption is much larger for 3G since it's on all the time and looking for proper signal? I love the 3G feature but also appreciate a long battery life, hope someone can advise.

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06-19-2011, 03:20 AM	#2
HarryT eBook Enthusiast Posts: 85,544 Karma: 93383099 Join Date: Nov 2006 Location: UK Device: Kindle Oasis 2, iPad Pro 10.5", iPhone 6	You certainly can expect a battery life of over a month. I easily get that on my 3G Kindle. Yes, best idea is to only turn the radio on when you need it, which is simply done via a menu item.

06-19-2011, 04:37 AM	#3
kranu I <3 my Kindle Posts: 528 Karma: 51332 Join Date: Nov 2010 Location: United States Device: Kindle 3G + WiFi	When you are using 3G, the battery life is very weak (I get maybe three or four days). However, when you are using WiFi or nothing at all, the battery life is about the same for both Kindles. As HarryT says, only enable wireless when you need it (buying books). You can either turn on or turn off wireless. Wireless includes both WiFi and 3G. The Kindle 3G automatically switches to 3G when it can't find any recognized WiFi access points.

06-19-2011, 12:03 PM	#4
gase888 Junior Member Posts: 2 Karma: 10 Join Date: Jun 2011 Location: hong kong Device: Kindle 3 3G+Wifi	Thanks. It's great to find a site with lots of pros like you all. And also thanks for the response.

06-19-2011, 06:17 PM	#5
Outrager Connoisseur Posts: 62 Karma: 12430 Join Date: Jun 2010 Device: Kindle Paperwhite 2013	Also, when you add a new book it will index it and that eats a lot of battery life. So if you are going on a long trip or something and can't charge it stock up on the books you know you're going to read and keep it charged while it indexes the books before you take it with you.

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