Showing posts with label battery life. Show all posts
Showing posts with label battery life. Show all posts

Sunday, May 8, 2011

Tips for new Kindlers on Mother's Day. Free Kindle books. Battery use.

Mother's Day greeting at left, is from the Manhasset Library.

Since many will be opening new Kindles today, I thought I'd mention a couple of things that can help with finding free books, to give it a workout, and do a reminder on tips for getting the most out of the Kindle battery.
  At the top of this blog's reference column, you can always find free books available at the moment (some are temporarily free due to promos).

Temporarily-free books -
Non-classics
- USA: by:
NEW: Last 30+ days  May 2011
   Publication Date   Late-listed
   Bestselling   High-ratings

UK: PubDate   Popular
Most Popular Free K-Books
U.S. & Int'l (NOT UK):
   Top 100 free
UK-Only:
   Top 100 free
USEFUL for your Kindle (U.S. only, for now):
  99c Notepad for Kindle,   99c CalendarPro


You can also get an idea of other sources for over a million free books as well as get some pre-set links for low-cost Kindle books, at the Free Kindle Books guide here

SPECIAL BOOK DEALS TODAY - temporary promos
The Amazon Kindle Forums often has message threads on discounted books that include some free books.

  Yesterday's included a tip on Kindle books from Rosettabooks that have tie-ins with movies, available at $0.00 today.  I've no idea for how long.  These include: A Passage to India, The Graduate, Midnight Cowboy, and others.

  There are also some Dr. Vook TextVooks available for $0.00 today BUT BEWARE of any that are animated, with audio/video, as those features work ONLY on the iPad, iPhone, or iPod (Touch) -- they don't work on the Kindle or even the Kindle for PC app either.

    However, the NON-animated TextVooks are extremely "brief" (maybe 15-20 pages only) and said to be good 1/2-hour refreshers for some.  For $0, those may be worth a download for the Kindle.  I have to believe the product descriptions are thoroughly tongue-in-cheek, by a cheeky professor who says outfront that these are written by graduate students.  The "Did you know?" boxes can be fun, and the TextVooks are like more-filled-out outlines.

More from The Complete Works Collection
The blog entry just before this had to do with the Complete Works Collection offerings for $2.99.

  What I hadn't noticed among the sets was the Harvard Classics set, which my family actually had when I was growing up.  A lot of families did.  They must have been sold by radio or door to door.  This is quite a set though.

TIP 1 - for using Table of Contents to get to Chapters and back
I've read that some who jump to a chapter have felt that they must then page through until they can get the next chapter or another one they want.

  The trick is that if you want to go back to the LAST place you were when you 'jumped' by clicking a link, you just press the "Back" button and you're back where you were before the 'jump.'  This works for footnotes too, generally.

  For those who bought Shakespeare sets, some families might be interested in a not-free but much-praised Shakespeare GLOSSARY.  Warning: it's $12 but many feel it's well worth it while trying to read that old English :-)

BATTERY LIFE
The Kindle is known for its long battery life, but certain functions use a lot more battery power than others, and one involves a process that's a part of putting new books on your Kindle (UK: K3).

  Indexing - The Kindle allows you to do a Search on the entire device to find a key word or phrase that may occur in any book or magazine on the Kindle.

  In order to do that, the Kindle "indexes" all new text material that is placed on it, which means it makes lists of key words found in each so that they can be found when you decide to do a Search, either within a book (commonly done) or of all the text on the Kindle (less common and it takes awhile to get search results but this can be very useful).

  That indexing takes a LOT of battery life.  New Kindles seem to use a lot more juice than people had expected, and that's because they are usually getting a lot of new books on them, with a lot of indexing to be done.

  Sometimes, a book might not finish indexing for some reason, and that can cause slowdowns.
  TIP 2 - If you think the Kindle is being a bit slow and you want to check to see if a book has not completely finished indexing but should have completed (a day later, say), do a SEARCH on a nonsense word, such as "xwzq" and the search will end without finding that (normally!).  However, if a book has not completed indexing, you'll get a message to that effect.

  It shouldn't take more than an hour or 4 to do indexing, but I've seen that people put hundreds of books on right away, or even a thousand, in a couple of cases.  That will take quite a bit of time to index.

  If a book never finishes indexing (after a day or two), it probably became corrupted during a downloading session due to weak reception with the WiFi or 3G. I'd delete it and re-download it.

  TIP 3 - Plug in the charger when you're putting a LOT of books on it, because you can read while the device is charging.  That way, the indexing won't use battery power, and you won't be surprised by the battery being unusually low after you've added a great many books.  A few books, no big difference -- but as I say, some just download or transfer hundreds right away.

BATTERY ADVISORIES FROM KINDLE CUSTOMER SERVICE FORUM MESDAGES
I collected the ones that were made over a year ago, and they still hold.

  Essentially, no battery power is used for a screensaver/screensleeper or for any page of content, until something changes in that page. Kindle Team recommends you just let the Kindle go to sleep rather than power it down.  It takes more power to turn it on often, actually.

  TIP 4 - When you're through reading for a while, CLOSE the book by pressing the "Home" button.  This records the last-page you read so that you return to that page when you next open the book (or when you next open the book but you're using your smartphone which is sync'd with the Kindle - a nice feature).  Closing the book by pressing the "Home" button also saves, to a special file, your highlighting and notes, so it's important to do that.

  The type of battery in the Kindle shouldn't be brought down to Zero.  Amazon recommends you not let it get below 25% or so.  Leaving enough there prevents problems.  There's no harm in topping off, because there's no "memory" effect as with the older type of batteries.

  Read much more in the Battery Advisories from Amazon Kindle Customer Service.

That should do it! Below are ways to Share this post if you'd like others to see it.
-- The Send to Kindle button works well only on Firefox currently.

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(Older posts have older Kindle model info. For latest models, see CURRENT KINDLES page. )
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Wednesday, October 21, 2009

To sleep or not to sleep, to turn off or not... Update-2

AMAZON CUSTOMER SERVICE'S OFFICIAL ADVISORIES ON KINDLE BATTERY MAINTENANCE

This is a popular blog-article which is being highlighted for newcomers and Kindle-blog edition subscribers.  During my vacation I'll be including the more popular tips and guides. Kindle-blog edition subscribers will not have had these on their Kindles before and the subscription (99c per month) allows offline-review of the last 25 blog articles.

10/21/09 - This collection of battery maintenance advisories by Amazon Customer Service applies to the new International Kindle as well.  It was updated when the Kindle DX was released.  How to make best use of the battery, whether to turn the Kindle off or let it just "go to sleep"
-- these are two of the most commonly asked questions on the Amazon forums.

UPDATE 7/13/09 - Originally published 3/19/09 when I began the blog, and updated in June with an additional quote from Amazon customer service representatives.

  I'm updating and moving this article to a current spot because now that the 9.7" Kindle DX is apparently selling too well and interest in the 6" Kindle 2 is higher than before because of the price drop, many on Kindle forums are asking again:
    (1)  whether it's better to let the Kindles "sleep" or shut them off, and
    (2)  whether to charge them regularly or let the batteries drain as with older-type batteries.

The lithium ion/polymer battery for the Kindle 2 and Kindle DX isn't user-replaceable and would have to be sent back to Amazon for any needed replacement.  That replacement, if needed in the first year, would be covered by the 1-yr basic warranty.  This type of battery is expected to last over 2 years, used or not though.  Word was that if a replacement were needed in the 2nd year, the cost would be $59 to send it to Amazon and back.  {The DX battery is essentially the same as the one in the Kindle 2:   a 3.7V Lithium Polymer 1530mAh rating.}

UPDATED PARAGRAPH - 6/14/09:  (Original posting was  3/19/2009 11:01 PM)
Amazon Customer Service representatives posted an "Official Amazon.com Customer Service post" on February 26, 2009
" We learned from the first generation Kindle that changing the battery was rarely needed, so Kindle 2's battery is not user replaceable. The battery is covered under the initial one year warranty as well as the extended warranty offered on Amazon.com.  Once outside the one or two year warranty period you can get it replaced for a $59 fee (plus $8 shipping & handling).  If you encounter any kind of power or charging issues during the life of your Kindle 2, you can contact Kindle Support for assistance. "
 
Kindle owners of any model (basically same type of battery) have worried a bit: 'Should we turn it off when we're not using it?  Is it draining the battery when it's left 'On' in 'sleep' mode?  Should we drain our batteries the way we used to with the old nickel-cadmium ones?"  (No)  but ... will most owners have seen the Amazon Customer Service's ongoing advisories on the Amazon Kindle forums?

The advisories have been very enlightening.  Here are a few written statements of customer service policy and guidance at the Amazon boards that I collected:
1. CHARGING YOUR KINDLE BATTERY
  "With Kindle 2's battery you don't need to fully drain the battery before recharging, or wait until the battery is fully charged to start using it again. The Lithium-ion battery is optimized in such a way that incomplete charging won't affect the battery life.  For example, if you drain the battery halfway two days in a row while fully charging both times at night, this would only count as one charge cycle.  
Leaving Kindle in extreme temperatures, like in your car, will have the most negative impact on the overall life of your battery.

  Leaving wireless turned on or sustained use of the wireless functions will cause the battery to drain faster.  If you would like to turn the wireless off, select menu from the home screen.  Use the five-way controller to select "Wireless Off".  Also, downloading a large number of books at once will cause the device to index new content.  If you have recently transferred or downloaded a large number of books it is recommended that you leave the device turned on and connected to the charger overnight."
2. RECHARGING KINDLE 2's BATTERY
  "With Kindle 2's 25% longer battery life, you can read on a single charge for up to 4 days with wireless on.  Turn wireless off and read for up to 2 weeks.  If you use the wireless feature frequently, we do recommend keeping the battery at 25% at least.  There is no specific need to let the battery drain out before recharging it;  many owners do keep their devices plugged in each night, and this does not have any adverse effect on overall battery life."
3. LAST PAGE READ
  "You do not need to power down Kindle 2 between reading sessions, it is best to leave the device in sleep mode.
  Holding the switch at the top to power the device off is similar to pulling the power cord on your computer without shutting down the Operating System.  If you turn the device off while in the middle of the book, the device cannot save that location.  We save the location when the device goes into sleep mode or when you leave the book, so if you do need to power the device off then be sure to go to the Home screen first - this will save your last place in the book.
4. WIRELESS SIGNAL IN SLEEP MODE
  "Kindle's wireless signal uses low power while in sleep mode so that your subscriptions can download overnight.  If you are in a low coverage area, this could cause the device to use more battery power as it continually tries to maintain a signal.  Unless you are subscribed to periodicals that you want to receive overnight, we recommend turning wireless off  (Press the Menu button and select "Turn Wireless Off" of the menu options) before leaving the device in sleep mode. This will further conserve battery power."

=== END of some of the Customer Service thread topics at the forum ===
The Kindle 2 and Kindle DX are delivered with WIRELESS *On* as a default.  Without reading the manual first, many new owners never guess that wireless should be turned off nor how that would be done in the software menus.  Also, the battery takes a few charges before it reaches maximum power.

The older, nickel-cadmium batteries no longer in vogue used to require full draining, but the lithium ion/polymer based batteries are the opposite.  Forced drainings below 25% can actually weaken it and cause problems if battery power is needed while the Kindle is downloading material or when the unit is busily indexing additional Kindle contents after downloads or when we're using the wireless to browse the Kindle store or the Web.  And now with the Kindle DX's ability to read PDF's, those files will tend to be image-intensive and loading (opening) them will use the battery a bit more.  Amazon's statement was strong about trying to keep the battery power above 25% remaining, for best long-term results.


Current Kindle Models for reference, plus free-ebook search links.
NOTES on newer Kindles.

US:
Updated Kindle Fire Basic  7" tablet - $159
Kindle Fire HD 7" 16/32GB - $199/$249
Kindle Fire HD 8.9" 16/32GB - $299/$369
Kindle Fire HD 8.9" 4G 32/64GB - $499/$599
Kindle NoTouch ("Kindle") - $69/$89
Kindle Paperwhite, WiFi - $119/$139
Kindle Paperwhite, 3G - $179/$199
Kindle Keybd 3G - $139/$159, Free but slow web
Kindle DX - $379 $299, Free, slow web
UK:
Kindle Basic, NoTouch - £69
Kindle Touch WiFi, UK - £109
Kindle Keyboard 3G, UK - £149
  Keybd: w/ Free, slow 3G WEB
Kindle Paperwhite, WiFi
£109
Kindle Paperwhite 3G, UK
£169
Kindle Fire 2, UK
 £129
Kindle Fire HD 7" 16/32GB, UK
£159/199
OTHER International
Kindle NoTouch Basic - $89
Kindle Touch WiFi - $139
Kindle Keybd 3G - $189
  Keybd: w/ Free, slow 3G WEB

France
Boutique Kindle
Deutschland - Kindle Store
Italia - Kindle Store
Spain - Tienda Kindle

* Kindle Fire HD to be released October 25, 2012 in listed European areas above;
    Paperwhite to be released November 22, 2012 there.



  For daily free ebooks, check the following links:
Temporarily-free books - Non-classics
USA: by:
   Publication Date  
   Bestselling   High-ratings

UK: PubDate   Popular

The Kindle Daily Deal

What is 3G? and "WiFi"?       Battery Care

Highly-rated under $1
,  Newest: $1-$2, $2-$3
Most Popular Free K-Books
U.S. & Int'l (NOT UK):
   Top 100 free
UK-Only:
   Top 100 free

Guide to finding Free Kindle books and Sources.

USEFUL for your Kindle Keyboard (U.S. only, currently):
  99c Notepad 1.1,   99c Calculator,
  99c Calendar,   99c Converter

  *Click* to Return to the HOME PAGE.  Or click on the web browser's BACK button
Below are ways to Share this post if you'd like others to see it.
-- The Send to Kindle button works well only on Firefox currently.

Send to Kindle


(Older posts have older Kindle model info. For latest models, see CURRENT KINDLES page. )
If interested, you can also follow my add'l blog-related news at Facebook and Twitter
Questions & feedback are welcome in the Comment areas (tho' spam is deleted). Thanks!

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