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13

I beleive you are asking "can the power usage of an eink screen be quantified?" As long as you don't change the page/image it is not using anypower. E Ink's technology is commonly referred to as "bistable". What does this mean? Bistable means that the image on an E Ink screen will be retained even when all power sources are removed. In practice, this ...


8

In most cases, you will not need to shut down your Kindle Fire. The Fire uses a lithium-ion battery, which means you should be connecting it to your charger quite often. (Shallow discharges and frequent recharges are better for your battery in the long run than deep discharges.) The only time you would gain anything from shutting down your Fire would be if ...


6

Yes you can, this youtube video has the tutorial and the description has the link for the resource for a new battery. And here you can find a proper hardware analysis of the device. Battery info: 3.7V, 1,420mAh (5.25Wh) Li-ion Polymer Battery (Model: S2011-002-A)


5

Unfortunately this is not possible. The exact explanation for this actually comes from Android. Buried deep within the Android source code is this little gem: BatteryService.java:239 private void shutdownIfNoPowerLocked() { if (mBatteryLevel == 0 && !isPoweredLocked(BatteryManager.BATTERY_PLUGGED_ANY)) { [...] This basically forces the ...


5

The Kindle eInk devices do not run the Android OS, they run Linux. I believe most of the other eInk devices run Linux as well. That being said, your question is difficult to answer because the energy usage of an eInk screen is so much lower and the way energy is used is very different. The easiest answer to your question is that 1% is as accurate an ...


4

The Kindles are designed to be turned off only rarely (such as for lengthy periods of non-use), and to rely on the sleep function instead. Nathan's answer covers that admirably. However, you may wish to turn off the wireless connection when you put the device to sleep if you think you might not pick it up for a few hours. That will considerably slow its ...


3

Try using an iSesamo — it's a tool explicitly made for popping open the panels on electronic devices (www.newertech.com/products/isesamo.php) The iSesamo is thinner than plastic spludgers and sits in a sweet spot between stiff/inflexible and too-bendable-to-pry-things-off.


3

If the PDF file is not formatted to the size of your Classic Kindle screen (roughly A6 format or 6"x4") you will consume a lot more power because you will need to zoom in and out and navigate on the page in order to read it. A MOBI file does not have this kind of problem because it dynamically resize the text so you can read without interaction. Your e-ink ...


2

While changing your battery is an option. I would recommend contacting Kindle support first. Even if the warranty has expired, free or low cost replacement devices can be had. In my experience, there are multiple levels of support. When I first called, someone speaking English as a second language was giving answers from helpdesk answer book, (not so ...


2

You can try to change the battery. A simple Google search returns a lot of results, I summarize here the steps from this page: Turn off your Kindle. Slide and hold the power switch for four seconds, then release. The screen blanks. Place the Kindle screen down on a flat, clean surface. Remove the plastic back panel. Two tabs keep the back panel ...


1

A not so comfortable but less dangerous solution might be to connect the Kindle with a short USB cable (e.g. 6 inch long) to a small powerbank (the question states that the device is working while it is connected to a power source). So while reading you have also to hold the powerbank, which should have a handy shape for this (e.g. rather flat and ...


1

There are eink devices out there running Android and allowing access to the system preferences, namely rooted devices. Those can give you exactly that graph. Here is an image of the graph as of my device: But as others noted due to the technology difference the percent value of the display usage does not make any sense here. It is not very helpful without ...


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