Clara HD Battery Drain: Sleep cover?

Scott479 · 09-07-2018, 05:27 PM

I have bought a new Clara and got a sleep cover to keep it in. I've notice the battery is dead in a day or two even though I've only spent an hour reading on it. I was putting the device to sleep with the button (out of habit) and then closing it, which made me think closing it awakened it again, so I stopped using the button. Bit the battery is still draining quickly. Has their been a solution to this problem?
Should I just return the sleep cover and but something else?

robko · 09-07-2018, 05:58 PM

Does your reader in the cover sit somewhere it's not being disturbed (i.e. on a table) or could it be getting jostled enough that it is regularly being woke up and put back to sleep (or woke up and sleeping itself when it times out)?

John F · 09-07-2018, 07:02 PM

Did you try to disable the sleep cover in settings to verify it is the problem?

jeffery · 09-07-2018, 08:51 PM

I have the Aura HD, and I too have seen sleep cover battery drain issues. My cover is from Mulbess.

What I have noticed though is that even though the cover is closed, the reader isn't going to sleep all the time. in fact, it seems to be preventing the reader from going to sleep. I will look over an hour later and I can just barely see a sliver of light peeking out from beneath the cover.

If I forgo closing the cover the reader will sleep on it's own after the proper timeout period every time.

What I think is happening:
The cover is getting old, and it's sagging a bit. I think two things are happening with it. the magnet is not quite making contact, and the sagging of the cover is triggering the screen sensor in the middle, preventing normal sleep time out.

Could this explain what is happening to you? Not that it is old, but the cover issues.

Ripplinger · 09-07-2018, 10:49 PM

I've run into a few covers where the magnet wasn't in the exact perfect position to trigger sleep for the reader. If you pry up just an edge of the cover, you'll see the light is still on. I've returned them, and the replacement worked just fine.

I would take the reader out of the cover for a few days. Either set it to go to sleep with the button (I don't have a Clara, so I'm assuming it's sleep and not a full shut down). Or in the settings, set it to go to sleep after 5 minutes, and make sure it really does go to sleep. See if it's still having the same battery drain issue, just to rule out that it's not the new reader itself. But I'm betting it's a sleep cover with the magnet just slightly off the sweet spot.

Scott479 · 09-10-2018, 06:08 AM

Hello everyone,

Robko, it mostly has stayed in my backpack, so it may get jostled around, but also sits undisturbed for long periods as well. If it gets woken up during this time, will it not go back to sleep after several minutes?

I've turned off the sleep cover function in the settings (and lessened the time to 5 minutes to go to sleep). We will see how long it lasts now. It would be disappointing if the sleep cover magnet is misaligned, since the Clara is a new size for Kobo (it's smaller) and the sleep cover is made my Kobo, especially for the Clara.

Uschiekid · 09-10-2018, 10:58 AM

Do you ever/often leave it on a metal table? I remember a few months back someone finally figuring out that their device wasn't sleeping properly because their bedside table was metal, and *i think* putting something in between the table and their reader solved it. Someone else suggested it as a possible cause, as it had been discussed earlier on MR by others who had the same problem.

Mrs_Often · 09-10-2018, 03:40 PM

Quote:

Originally Posted by Uschiekid

Do you ever/often leave it on a metal table? I remember a few months back someone finally figuring out that their device wasn't sleeping properly because their bedside table was metal, and *i think* putting something in between the table and their reader solved it. Someone else suggested it as a possible cause, as it had been discussed earlier on MR by others who had the same problem.

Or if not a metal table, maybe something metal in the backpack...?

davidfor · 09-10-2018, 07:52 PM

Quote:

Originally Posted by Mrs_Often

Or if not a metal table, maybe something metal in the backpack...?

Or another device with a magnet. Back before I put a cover on my Glo, I would put in in my backpack with the front against my iPad. Frequently, when I pulled the Glo out, it would be awake. It took me an embarrassingly amount of time to realise that the magnet in the cover of the iPad was triggering the wake and sleep of the Glo. Plus, there was enough movement of the two devices relative to each other, that it kept waking and sleeping and ran the battery down.

Scott479 · 09-13-2018, 11:29 AM

I turned off the sleep cover function and have just been using the button, but it is still not lasting long. Perhaps I need to return the Clara. Maybe a bad battery.

LucyOne · 09-13-2018, 11:38 AM

Maybe this drain could be caused by a corrupt book. I've had a similar problem with a device of another brand.
My Clara only loses only about 1% of battery a day in its sleep cover since I've turned OFF the automatic power-off-function.

Mrs_Often · 09-14-2018, 04:06 AM

Quote:

Originally Posted by LucyOne

My Clara only loses only about 1% of battery a day in its sleep cover since I've turned OFF the automatic power-off-function.

My Clara battery has no issues either. I've just read a huge book: 18 hours of reading, plus maybe almost just as many hours of reading Pocket articles, with the light somewhere between 1-12%, Wifi ON, auto-wake OFF, and many sleep/wake cycles including several off/on cycles without any in between plug-ins... and Clara only just asked for juice yesterday. I wanted to see how long it would last with the last 10% battery, but after 1,5 day I gave up because I wanted to change some config file things and backup my reading status to Calibre.

In other words, indeed, Scott probably has a bad book (or small chance at bad battery).

Scott479 · 09-14-2018, 05:40 AM

Kobo suggests I return it to the store for a new one: "The device's battery should not be working as you mentioned."

Mrs_Often · 09-14-2018, 07:03 AM

Quote:

Originally Posted by Scott479

Kobo suggests I return it to the store for a new one: "The device's battery should not be working as you mentioned."

If I were you I'd test to find out if you have a bad book first. Otherwise, you'll end up with the same problem with the next device after all the trouble of exchanging.

compurandom · 09-14-2018, 07:23 AM

Turn off wifi and see if that helps.

09-07-2018, 05:27 PM	#1
Scott479 male homo sapien Posts: 24 Karma: 10 Join Date: Dec 2011 Location: Ontario, Canada Device: Kobo Glo, Kobo Clara HD	Battery Drain: Sleep cover? I have bought a new Clara and got a sleep cover to keep it in. I've notice the battery is dead in a day or two even though I've only spent an hour reading on it. I was putting the device to sleep with the button (out of habit) and then closing it, which made me think closing it awakened it again, so I stopped using the button. Bit the battery is still draining quickly. Has their been a solution to this problem? Should I just return the sleep cover and but something else?

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09-07-2018, 05:58 PM	#2
robko Wizard Posts: 2,454 Karma: 5469320 Join Date: Jul 2010 Device: Kobo	Does your reader in the cover sit somewhere it's not being disturbed (i.e. on a table) or could it be getting jostled enough that it is regularly being woke up and put back to sleep (or woke up and sleeping itself when it times out)?

09-07-2018, 07:02 PM	#3
John F Grand Sorcerer Posts: 7,166 Karma: 63764653 Join Date: Feb 2009 Device: Kobo Glo HD	Did you try to disable the sleep cover in settings to verify it is the problem?

09-07-2018, 08:51 PM	#4
jeffery Enthusiast Posts: 34 Karma: 565332 Join Date: Oct 2016 Device: kobo aura hd	I have the Aura HD, and I too have seen sleep cover battery drain issues. My cover is from Mulbess. What I have noticed though is that even though the cover is closed, the reader isn't going to sleep all the time. in fact, it seems to be preventing the reader from going to sleep. I will look over an hour later and I can just barely see a sliver of light peeking out from beneath the cover. If I forgo closing the cover the reader will sleep on it's own after the proper timeout period every time. What I think is happening: The cover is getting old, and it's sagging a bit. I think two things are happening with it. the magnet is not quite making contact, and the sagging of the cover is triggering the screen sensor in the middle, preventing normal sleep time out. Could this explain what is happening to you? Not that it is old, but the cover issues.

09-07-2018, 10:49 PM	#5
Ripplinger 350 Hoarder Posts: 3,574 Karma: 8281267 Join Date: Dec 2010 Location: Midwest USA Device: Sony PRS-350, Kobo Glo & Glo HD, PW2	I've run into a few covers where the magnet wasn't in the exact perfect position to trigger sleep for the reader. If you pry up just an edge of the cover, you'll see the light is still on. I've returned them, and the replacement worked just fine. I would take the reader out of the cover for a few days. Either set it to go to sleep with the button (I don't have a Clara, so I'm assuming it's sleep and not a full shut down). Or in the settings, set it to go to sleep after 5 minutes, and make sure it really does go to sleep. See if it's still having the same battery drain issue, just to rule out that it's not the new reader itself. But I'm betting it's a sleep cover with the magnet just slightly off the sweet spot.

09-10-2018, 06:08 AM	#6
Scott479 male homo sapien Posts: 24 Karma: 10 Join Date: Dec 2011 Location: Ontario, Canada Device: Kobo Glo, Kobo Clara HD	Hello everyone, Robko, it mostly has stayed in my backpack, so it may get jostled around, but also sits undisturbed for long periods as well. If it gets woken up during this time, will it not go back to sleep after several minutes? I've turned off the sleep cover function in the settings (and lessened the time to 5 minutes to go to sleep). We will see how long it lasts now. It would be disappointing if the sleep cover magnet is misaligned, since the Clara is a new size for Kobo (it's smaller) and the sleep cover is made my Kobo, especially for the Clara.

09-10-2018, 10:58 AM	#7
Uschiekid Tenrec Posts: 724 Karma: 1076988 Join Date: Oct 2012 Device: Kobo Aura One, Kobo Glo	Do you ever/often leave it on a metal table? I remember a few months back someone finally figuring out that their device wasn't sleeping properly because their bedside table was metal, and i think putting something in between the table and their reader solved it. Someone else suggested it as a possible cause, as it had been discussed earlier on MR by others who had the same problem.

09-13-2018, 11:29 AM	#10
Scott479 male homo sapien Posts: 24 Karma: 10 Join Date: Dec 2011 Location: Ontario, Canada Device: Kobo Glo, Kobo Clara HD	I turned off the sleep cover function and have just been using the button, but it is still not lasting long. Perhaps I need to return the Clara. Maybe a bad battery.

09-13-2018, 11:38 AM	#11
LucyOne Librocubicularist Posts: 617 Karma: 11908623 Join Date: Dec 2013 Location: Germany Device: PocketBook InkPad 3 & Touch HD 3, Kobo Clara HD, Kindle Paperwhite 5	Maybe this drain could be caused by a corrupt book. I've had a similar problem with a device of another brand. My Clara only loses only about 1% of battery a day in its sleep cover since I've turned OFF the automatic power-off-function.

09-14-2018, 05:40 AM	#13
Scott479 male homo sapien Posts: 24 Karma: 10 Join Date: Dec 2011 Location: Ontario, Canada Device: Kobo Glo, Kobo Clara HD	Kobo suggests I return it to the store for a new one: "The device's battery should not be working as you mentioned."

09-14-2018, 07:23 AM	#15
compurandom Guru Posts: 919 Karma: 417282 Join Date: Jun 2015 Device: kobo aura h2o, kobo forma	Turn off wifi and see if that helps.

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