Hi Folks, I think the issue occurs when something touches the screen on a sleeping Glo…
My wife and I both have Kobo Glo readers, mine had no battery issues but my wife’s had the same issues reported in this thread. The Glo would lose charge while sleeping, typically it would last about 3 days from full charge to needing a re-charge, even if she had done minimal reading. My Glo in contrast would go several weeks without recharging, it did not lose charge while sleeping.
I’ve been reading this forum thread trying to determine if I should get a replacement Glo for my wife and took the plunge. I fully charged the new one and set it up with Kobo Desktop to upgrade to the latest firmware. I tested it over a couple of days letting it sleep and periodically waking it up to check battery consumption, it stayed at 100%. At that point I figured it was ok to load all of my wife’s books on so I transferred the rest using Calibre (we both have a mix of Kepubs and epubs).
After finishing the transfer of books I gave my wife the new Glo. We found that it started to discharge while sleeping as well! We knew the new Glo started off fine so we backtracked on what might have changed. The only things were the transfer of books, turning off the SleepCover function, and putting the Glo in a case (Skindigital not a Sleepcover). I took the New Glo out of the case and tested the sleep function over half a day, it stopped discharging during sleep.
I then put my Glo (never had issues, and I don’t use a protective case) into the skindigital and tested the sleep function. It didn’t discharge during sleep. I compare the settings between my Wife’s new Glo and mine and found that the SleepCover function was enabled on mine so I turned it off (not sure this is really a factor) and then tested the sleep function again. My Glo began to discharge during sleep.
At the same time as I was testing my Glo in her case, I tested my wife’s old Glo outside a case and it had stopped discharging during sleep. Its been sleeping outside the case for over 5 days now and the battery has not discharged at all. Prior to this it used to drain itself completely in about 3 days.
I took a closer look at the case my wife uses and it has a pocket on the inside cover which I think would touch the screen when the cover is closed. I tried testing the sleep function on the new Glo with the cover open vs. closed. When the cover was open (nothing touching the Glo screen) there was no battery drain during sleep. When the cover was closed there was sometimes batter drain during sleep (even with the SleepCover function on).
On the 3 Glo's I had in my possession it looks like the cover was preventing the Glo from sleeping properly when touching the screen of the Kobo. Not sure why though.
Anyhow, since the issue doesn't seem to be battery related I'll be returning one of the Glo's. Hopefully a firmware fix will come out to resolve this issue.
Hopefully this info helps.
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