I'm on my third and final full charge now. Batterymeter indicates 72% after 2.5 weeks with moderate use of backlight.
I took care to avoid adding books and did not update software during this period. Also I switch the Inkpad off when I stop reading for longer than 5 minutes.
One noticable dip was from 83% to 75% when I opened a pdf file and read 40+ pages. The first 17% were used in almost 2 weeks, the 8% drop to 75% was in 1 day. The operations are appearently much more costly when rendering pdf as opposed to epub. The pdf file has been replaced by an epub file.
BTW I use Coolreader3 for the 4.x.x platform by brucelee, remarkable how little power it uses. I bet I can squeeze out 6 or 7 weeks of normal usage (about 2 hours reading a day).
Only thing that I wish for is that the dictionary in Coolreader has larger font and better button selection overall. I'm curious to improvements in the upcoming firmware, but I think I can do perfectly fine with the current setup for years to come.
Joepie
Quote:
Originally Posted by joepie
Hi rkomar,
I'm really not a battery guru, there are so many faqs on the web about these batteries, that I'm sometimes confused :-). Some say the battery is not completely flat at just the moment when the <insert apparatus> stops booting. And I just follow this draining procedure for the first 3 charges if and when the gadget is brand new. Supposedly it calibrates the software-battery combination because the battery capacity is tuned to min and max and so is the systemsetup. If this is true I'm not sure at all. It just works very well for me :-).
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