When should I charge the battery?

charlyee · 01-27-2016, 11:46 PM

Is there a recommendation on what level to charge the battery at? The battery on my Voyage lasts so much longer than my iPad that I often forget that the Voyage does have a battery that needs charging.

Another battery related question - at what percentage charge does the first low battery warning come on?
Will it be detrimental on the life of the battery if I wait until that warning comes on before I charge it?

Thanks very much.

Cinisajoy · 01-27-2016, 11:55 PM

Not sure about an ereader battery warning because I charge at either 25% or when I get the connect your device screen. I know my phone and tablets scream at 15%.
I also charge if I know I will be without easy power for a bit.

Dr. Drib · 01-28-2016, 07:20 AM

....and it also depends upon how you use your ebook reader.

For example, if I know I'm going on a trip, then I charge it the night before so it's at full charge when I leave.

Otherwise, 25% (as suggested above), seems like a pretty good marker.

pdurrant · 01-28-2016, 08:13 AM

Quote:

Originally Posted by CDG1

Will it be detrimental on the life of the battery if I wait until that warning comes on before I charge it?

No, it won't. Provided you charge it reasonably soon. Current rechargeable batteries HATE being completely drained.

But they don't mind being frequently topped up.

eschwartz · 01-28-2016, 01:05 PM

I think the warning comes on at 10% battery (but I usually don't let it get that far

).

You have a bit of leeway -- it doesn't tell you once damage has already started, it tells you in advance of the critical point, so you can hurry and recharge it.

charlyee · 01-28-2016, 06:50 PM

Thank you very much everyone. It was very helpful, no idea what I will do yet though.

On the subject of battery, is there an "hack" that will show the actual percentage on the battery?

Thanks again, glad I found this forum.

tovare · 01-28-2016, 07:12 PM

There´s no need to have any battery angst with the kindle :-)

Recharge cycles is not a concern with the kindle battery because you don´t do it that often. i.e. a phone might see a couple of charge cycles a day and be painful after 3 years, you´ll get the same effect on the kindle ... in 50 - 80 years.

Now I think other limits pushes the max lifetime to about 40 years, and there´s probably some other components in the kindle which will fail even faster.

Extreme heat will kill the battery, so I´d leave it in the shadow when not using it on the beach.

eschwartz · 01-28-2016, 08:24 PM

Quote:

Originally Posted by CDG1

Thank you very much everyone. It was very helpful, no idea what I will do yet though.

On the subject of battery, is there an "hack" that will show the actual percentage on the battery?

Thanks again, glad I found this forum.

There is one bundled with Aeris' Native Menu hack (the battery indicator itself is HERE), but no one has updated it since firmware 5.6.5 and it appears something changed...

barryem · 01-28-2016, 10:06 PM

Here's a page on battery university, a highly respected site that's built a good reputation for many years, about the care and feeding of lithium ion batteries.

http://batteryuniversity.com/learn/a...ased_batteries

I haven't read the article in a couple of years but basically, as I recall, assuming it hasn't changed, it does say devices batteries will last longer if you charge them sooner. There are a number of tables and charges on the site showing that.

However, the difference is small. You'll improve the overall lifetime of your battery by smaller shorter charges done more often but not by a lot. Personally I'll take all I can get so I charge all of my Kindles every Saturday and I charge the one I'm currently reading on when the gauge get's noticeably below full.

I've been doing this for years, carefully, and my Kindle batteries are all good.

However, all of my older Kindles are in the hands of my neighbors, many for several years, and none of them give the kind of care to them that I do. Quite a few let them go dead before they think of charging them. And all of their Kindle batteries are holding up just fine.

So there probably isn't a lot of point in worrying about it unless it just makes you feel good, as it does me.

Barry

charlyee · 01-28-2016, 10:24 PM

Thank you eschwartz, tovare, and barryem for the very helpful information. Obsessing over battery life is one of my favorite hobbies.

And yes Barry, it does make me feel good to worry about it.

Dr. Drib · 01-29-2016, 08:31 AM

Quote:

Originally Posted by CDG1

Thank you eschwartz, tovare, and barryem for the very helpful information. Obsessing over battery life is one of my favorite hobbies.

And yes Barry, it does make me feel good to worry about it.

If you want to worry, you should worry about not dropping that sucker!

Cinisajoy · 01-29-2016, 11:50 AM

Quote:

Originally Posted by Dr. Drib

If you want to worry, you should worry about not dropping that sucker!

Be warned, Kindles do not like hot baths. Or at least some don't.
Learned that the hard way.

charlyee · 01-29-2016, 06:02 PM

Quote:

Originally Posted by Dr. Drib

If you want to worry, you should worry about not dropping that sucker!

Gee Thanks, another thing to add to my worry list

Barbara1955 · 01-29-2016, 07:08 PM

When its Low When you plan to take it with you.

barryem · 01-29-2016, 08:36 PM

Of course if you regularly use your Kindle in the bathtub you might find yourself obsessing less about battery longevity.

Barry

01-27-2016, 11:46 PM	#1
charlyee Book Addict Posts: 1,556 Karma: 11501430 Join Date: Jan 2016 Location: Wisconsin Device: Voyage, iPad Air 2, Surface 3	When should I charge the battery? Is there a recommendation on what level to charge the battery at? The battery on my Voyage lasts so much longer than my iPad that I often forget that the Voyage does have a battery that needs charging. Another battery related question - at what percentage charge does the first low battery warning come on? Will it be detrimental on the life of the battery if I wait until that warning comes on before I charge it? Thanks very much.

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01-27-2016, 11:55 PM	#2
Cinisajoy Just a Yellow Smiley. Posts: 19,161 Karma: 83862859 Join Date: Jul 2015 Location: Texas Device: K4, K5, fire, kobo, galaxy	Not sure about an ereader battery warning because I charge at either 25% or when I get the connect your device screen. I know my phone and tablets scream at 15%. I also charge if I know I will be without easy power for a bit.

01-28-2016, 07:20 AM	#3
Dr. Drib Grand Sorcerer Posts: 45,358 Karma: 59451559 Join Date: Jan 2007 Location: Peru Device: KINDLE: Oasis 3, Scribe (1st), Matcha; KOBO: Libra 2, Libra Colour	....and it also depends upon how you use your ebook reader. For example, if I know I'm going on a trip, then I charge it the night before so it's at full charge when I leave. Otherwise, 25% (as suggested above), seems like a pretty good marker.

01-28-2016, 01:05 PM	#5
eschwartz Ex-Helpdesk Junkie Posts: 19,421 Karma: 85400180 Join Date: Nov 2012 Location: The Beaten Path, USA, Roundworld, This Side of Infinity Device: Kindle Touch fw5.3.7 (Wifi only)	I think the warning comes on at 10% battery (but I usually don't let it get that far ). You have a bit of leeway -- it doesn't tell you once damage has already started, it tells you in advance of the critical point, so you can hurry and recharge it.

01-28-2016, 06:50 PM	#6
charlyee Book Addict Posts: 1,556 Karma: 11501430 Join Date: Jan 2016 Location: Wisconsin Device: Voyage, iPad Air 2, Surface 3	Thank you very much everyone. It was very helpful, no idea what I will do yet though. On the subject of battery, is there an "hack" that will show the actual percentage on the battery? Thanks again, glad I found this forum.

01-28-2016, 07:12 PM	#7
tovare Addict Posts: 221 Karma: 1133312 Join Date: Sep 2009 Location: Oslo/Norway Device: PRS-600, Kindle kb Wifi, new Kindle NT, PW2, Kindle Oasis	There´s no need to have any battery angst with the kindle :-) Recharge cycles is not a concern with the kindle battery because you don´t do it that often. i.e. a phone might see a couple of charge cycles a day and be painful after 3 years, you´ll get the same effect on the kindle ... in 50 - 80 years. Now I think other limits pushes the max lifetime to about 40 years, and there´s probably some other components in the kindle which will fail even faster. Extreme heat will kill the battery, so I´d leave it in the shadow when not using it on the beach.

01-28-2016, 10:06 PM	#9
barryem Wizard Posts: 2,459 Karma: 68781975 Join Date: Oct 2012 Location: Arkansas Device: Paperwhite 4	Here's a page on battery university, a highly respected site that's built a good reputation for many years, about the care and feeding of lithium ion batteries. http://batteryuniversity.com/learn/a...ased_batteries I haven't read the article in a couple of years but basically, as I recall, assuming it hasn't changed, it does say devices batteries will last longer if you charge them sooner. There are a number of tables and charges on the site showing that. However, the difference is small. You'll improve the overall lifetime of your battery by smaller shorter charges done more often but not by a lot. Personally I'll take all I can get so I charge all of my Kindles every Saturday and I charge the one I'm currently reading on when the gauge get's noticeably below full. I've been doing this for years, carefully, and my Kindle batteries are all good. However, all of my older Kindles are in the hands of my neighbors, many for several years, and none of them give the kind of care to them that I do. Quite a few let them go dead before they think of charging them. And all of their Kindle batteries are holding up just fine. So there probably isn't a lot of point in worrying about it unless it just makes you feel good, as it does me. Barry

01-28-2016, 10:24 PM	#10
charlyee Book Addict Posts: 1,556 Karma: 11501430 Join Date: Jan 2016 Location: Wisconsin Device: Voyage, iPad Air 2, Surface 3	Thank you eschwartz, tovare, and barryem for the very helpful information. Obsessing over battery life is one of my favorite hobbies. And yes Barry, it does make me feel good to worry about it.

01-29-2016, 07:08 PM	#14
Barbara1955 Non-Techy Posts: 4,455 Karma: 15499273 Join Date: Feb 2011 Location: WV---USA Device: Samsung Cell Phone & Amazon Fires & Kobo eReaders	When its Low When you plan to take it with you.

01-29-2016, 08:36 PM	#15
barryem Wizard Posts: 2,459 Karma: 68781975 Join Date: Oct 2012 Location: Arkansas Device: Paperwhite 4	Of course if you regularly use your Kindle in the bathtub you might find yourself obsessing less about battery longevity. Barry

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