Quote:
Originally Posted by hawhill
This aside, most modern gadgets have to learn to know their battery. I.e. they need some more cycles to give really good estimates on the amount of available power left. This is in most cases done by the dedicated battery management hardware (which internally of course uses "software") which keeps track internally of some parameters and reporting a "remaining capacity" and a "current maximum capacity" to the firmware.
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That sounds logical. My meter may be "learning" the battery cycle. I'm also keeping that spreadsheet now on my usage. When the displayed meter matches the numbers shown on the sheet, then the I'll be able to trust the meter.
So far today, I've read for exactly 55 minutes and the meter has not budged at all. We shall see how it all works over the next several weeks.
Finally, the screen showing the large discharged battery and the wire to the power may be the 15% signal on the PW. There may be no other signals. With the Kbd WiFi and the Fire, when the battery was totally discharged, the screens went blank. The PW works differently, apparently.
I leave WiFi on all the time for all three of my Kindles and, as a consequence, may get less battery time than others who leave WiFi off. I need it on since I constantly switch between them and need constant automatic syncing.