Thread: Firmware Update Kindle firmware 5.12.1
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Old 07-21-2019, 01:18 PM   #93
j.p.s
Grand Sorcerer
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Quote:
Originally Posted by ilovejedd View Post
Probably posted while the synapses weren’t firing up properly.

Besides, that hypothesis was made back when I only had descriptions of the Oasis to go by. After I got the PW4 and had actual experience with deep sleep and NAND performance, I highly doubt it works like hibernate on PCs. The PW4 had way more battery drain during deep sleep on, wifi on than with deep sleep off, wifi off.

SKIP_UPDATE_CHECK has mostly solved my battery woes when leaving wifi on but honestly, I just don’t notice any difference with deep sleep (apart from waking up taking longer).
Fair enough.

I suspect the worst case for "deep sleep" would be frequent short reading sessions during the day separated by at least 30 minutes and the best case one reading session per day. Whether it helps anyone depends where their usage falls between the two. The worst case could well hammer the battery.

I still think the most likely mechanism for "deep sleep" is hibernation. If anyone has a more plausible alternative, let's hear it.
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