PaperWhite: How's Your Battery?

[Japes]

How can you tell whether the paper white is indexing and when it has finished?

[omega34]

My battery is fantastic so far, probably a result of keeping Wi-Fi turned off and setting the light in the 8 to 10 range. After a reading session of a couple hours, it might drop one bar, but the total battery lasts for a very long time.

[Julius Caesar]

I posted this at Amazon board and I reposted here for reference:

Battery life does not include the time when the device goes to sleep.

I. Battery life: 13 hours 32 minutes
1. LED brightness: level 24 (Full blast)
2. Wireless: OFF (Airplane mode)
3. Refresh at every page: OFF
4. I use the dictionary a lot. If I don't use the dictionary, my battery life might be longer.

Most people read less than 13 hours per day. So, as long as you plug your Kindle before you go to bed, your Kindle should meet your reading need for the whole day, even when the LED brightness is at full blast.

II. Battery life: 47 hours 39 minutes
1. LED brightness: level 10
2. Wireless: OFF (Airplane mode)
3. Refresh at every page: OFF

Amazon advertised PW battery life with LED level 10, wireless off is 8 weeks, half an hour per day which amounts to 28 hours. So, 47 hours and 40 minutes exceeds all expectations.

III. Battery life: 49 hours 35 minutes
1. LED brightness: level 0 (lowest level)
2. Wireless: OFF (Airplane mode)
3. Refresh at every page: OFF

Between LED level 10 and 0, battery life is only about 2 hours longer but keep in mind that at more than 49 hours, battery life is still significantly longer than that of Kindle Touch advertised at 2 months, half an hour per day which amounts to 30 hours.

IV. The time it takes to charge the battery: 3 hours and 20 minutes. The device is completely turned off when the battery is charged.

Note that these were battery life before upgrading to latest patch 5.3.1. Battery life might change after you upgrade.

[Julius Caesar]

Originally Posted by Japes

How can you tell whether the paper white is indexing and when it has finished?

You can tell by going to Home screen and search for gibberish character like yteyryei. If it says items not indexed, then your paperwhite is still indexing.

The quickest way to index your books is by letting it go to sleep for a while. It shouldn't take more than 5 minutes per book.

[Japes]

Yeah but it's been stuck at 529 for a long time. I've tried rebooting tono avail. Can someone help?

[Atunah]

On the list of books it is indexing, look for one that is in lighter grey. Try to delete that one on your home page. You got it stuck on one of the books/docs that it can't index for some reason.

[Japes]

I don't get any sort of list. It just tells me there are 500 books left to index but it doesn't tell me which ones.

[Japes]

Any ideas?

[sirmaru]

Normally one could just download all the eBooks and let them index overnight with the charger plugged in.. 500 ebooks may require 48 hours with the charger plugged in.

I only read TWO eBooks at one time and leave just a dozen on my PW and KFHD7-32 to be able to read my highlights if I want. I see no purpose to leave 500 eBooks on the device. Just leave them in the Cloud for easy access.

[sirmaru]

Originally Posted by Julius Caesar

I posted this at Amazon board and I reposted here for reference:

Battery life does not include the time when the device goes to sleep.

I. Battery life: 13 hours 32 minutes
1. LED brightness: level 24 (Full blast)
2. Wireless: OFF (Airplane mode)
3. Refresh at every page: OFF
4. I use the dictionary a lot. If I don't use the dictionary, my battery life might be longer.

Most people read less than 13 hours per day. So, as long as you plug your Kindle before you go to bed, your Kindle should meet your reading need for the whole day, even when the LED brightness is at full blast.

II. Battery life: 47 hours 39 minutes
1. LED brightness: level 10
2. Wireless: OFF (Airplane mode)
3. Refresh at every page: OFF

Amazon advertised PW battery life with LED level 10, wireless off is 8 weeks, half an hour per day which amounts to 28 hours. So, 47 hours and 40 minutes exceeds all expectations.

III. Battery life: 49 hours 35 minutes
1. LED brightness: level 0 (lowest level)
2. Wireless: OFF (Airplane mode)
3. Refresh at every page: OFF

Between LED level 10 and 0, battery life is only about 2 hours longer but keep in mind that at more than 49 hours, battery life is still significantly longer than that of Kindle Touch advertised at 2 months, half an hour per day which amounts to 30 hours.

IV. The time it takes to charge the battery: 3 hours and 20 minutes. The device is completely turned off when the battery is charged.

Note that these were battery life before upgrading to latest patch 5.3.1. Battery life might change after you upgrade.

It should be noted that my results differ from yours. My KFHD7-32 with GSam doing the measurements shows 5.5 hours with WiFi on all the time and 7 hours with WiFi off all the time other than for syncing. Charge time to 100% as measured by GSam takes 5 hours. However, 90% could be reached in 4 hours.

My PW using a spreadsheet to measure individual reading sessions shows 10 hours with WiFi on and 12 hours with WiFi off other than for syncing. I use it at the 22 light setting. I leave it for 4 hours for a full charge while the LED turns green in just 2 hours using the Fast Charger for the FireHD from Amazon. I have page Refresh on all the time.

All of us have different units and modes of use and could have wide variations in these numbers. Plus, I recharge when the 15% signal flashes. If one goes down to 0%, then they will be getting longer reading cycles between charges.

Finally, those, who have never done a full discharge of the battery, may have defective meters and also less capacity in the battery. Those with Fires, who do not use GSam, may not be taking accurate measurements.

In actual practice now I leave WiFi on both units on all day and turn off WiFi, if I remember, every night.

[HarryT]

Originally Posted by Japes

I don't get any sort of list. It just tells me there are 500 books left to index but it doesn't tell me which ones.

Yes it does. Tap the line which says "500 books left to index" - it's a link which will take you to a list of the books being indexed.

It's a very good idea to add a few books at a time, rather than 500 all at once. Let each batch finish indexing before adding the next.

[l_macd]

Originally Posted by Japes

Any ideas?

This is exactly why it's not a good idea to load hundreds of books onto your Kindle at the one time.

If you do it in small batches (say 20-30) and check to make sure they are indexing ok inbetween, then at least you've only got a small number of books from the last batch to delete and help you identify the problem one.

That's probably your answer. Delete them all, and start reloading them in small batches until the indexing gets stuck again, then it's easier to find the one that's causing the issue.

[Antoinekamel]

One test I've done and I can say is: with Paperwhite being used half and hour, I kept it on, with minimum light, by my side, for nine hours. When I picked it up, it was with a little more than half the battery.

[Japes]

This is the reason my Sony PRS-350 and 950 readers still blow away the competition. None of this ridiculous (read poor engineering) indexing, etc.

Not to mention the battery life I get with my PRS-950 blows the Kindle Paperwhite out of the water. I'm likely going to send this back. It's a shame, cause it's a beautiful device, and, the light works beautifully.

[Japes]

Originally Posted by HarryT

Yes it does. Tap the line which says "500 books left to index" - it's a link which will take you to a list of the books being indexed.

It's a very good idea to add a few books at a time, rather than 500 all at once. Let each batch finish indexing before adding the next.

When I click on that link, it says "0 books left to index" which is COMPLETELY contradictory to the information given on the very line which I am clicking to get there.