Quote:
Originally Posted by j.p.s
Would you consider waking up a couple of your backup latest model basic Kindles, noting battery level, turning one off, letting the other go into deep sleep, and checking battery levels again a couple of weeks later?
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Sorry. Just checked and unfortunately, since my backups are all unregistered they don't have
Advanced Options > Power Saver (deep sleep).
Given these devices were idle for weeks (left to index after library update and forgot to shutdown after) and wake up from sleep was practically instantaneous, I'm inclined to think registration is a prerequisite for deep sleep.
I do have a lone registered PW4 but I forgot it in the office. I'll do a 4-way test when I get it back in my hands:
- PW4: unregistered, shutdown
- PW4: unregistered, airplane mode on
- PW4: unregistered, airplane mode off
- PW4: registered, airplane mode off, deep sleep (given I need wifi for WhisperSync, this is its normal idle state)
Maybe even add a PW3 into the mix.