Quote:
Originally Posted by Richwood
It looks to me like with the Aa update implemented that my Kindle readers have returned to the lower battery drain when off mode. One Oasis, fully charged, stayed at 100% battery power all night it appears. I also note that both the 10th generation PW and the current Kindle Basic enter a full sleep mode if off long enough as they both show a waking up sign, like the Oasis 2 and 3, when the cover is opened and time till the menu or book being shown is delayed a bit. Both are no advertising units so no swiping required. Will this increase battery charge life compared to older Kindle readers?
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The battery saving of deep sleep is dramatic if the kindle is left off for days at a time. The saving depends on how frequently it is used and how long it is off between uses. Extra battery is used to go to deep sleep and to wake up from deep sleep. Worst case would be to read for 15 minutes once per hour, which would likely use way more battery than not having deep sleep at all. It would be interesting to know how many deep sleep sessions per day are enough to cross over to battery wasting. From all the complaints about the 2017 Oasis battery charge life, I'm guessing that it might be as low as 2 or 3.