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Old 11-24-2021, 03:28 PM   #1
Fozkas
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Kobo sage battery report
Hi guys and gals,

About the Sage, I'm quite inclined to get one but I'm very reticent about the battery life.

Besides the discussion on the main thread, I'd like to have a real follow up on the battery life as experienced by the people o actually have one through the time coming.

My benchmark (reading time) with full charges (with the Glo, Clara and currently a Libra H20) is
Manga - 20-40 hours
Books - 40-80 hours

Not really intersted in longevity with audiobooks or notetaking myself but it may be relevant for others that come across this thread.

If the target above is not met, I'm simply not getting a sage

Thank you all!
Last edited by Fozkas; 11-24-2021 at 04:07 PM.
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Old 11-24-2021, 04:09 PM   #2
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Quote:
Originally Posted by Fozkas View Post
Hi guys and gals,

About the Sage, I'm quite inclined to get one but I'm very reticent about the battery life.

Besides the discussion on the main thread, I'd like to have a real follow up on the battery life as experienced by the people o actually have one through the time coming.

My benchmark with full charges (with the Glo, Clara and currently a Libra H20) is
Manga - 20-40 hours
Books - 40-80 hours

Not really intersted in longevity with audiobooks or notetaking myself but it may be relevant for others that come across this thread.

If the target above is not met, I'm simply not getting a sage

Thank you all!
Battery life depends on the wifi and frontlight settings, among other things. What should those be?

Still, as much as I can tell, my Sage gets nowhere near 40 hours of battery life. That's with wifi off, frontlight at level 8 and the full refresh set to every page.
Last edited by Sirtel; 11-24-2021 at 04:12 PM.
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Old 11-24-2021, 05:26 PM   #3
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Quote:
Originally Posted by Sirtel View Post
Battery life depends on the wifi and frontlight settings, among other things. What should those be?

Still, as much as I can tell, my Sage gets nowhere near 40 hours of battery life. That's with wifi off, frontlight at level 8 and the full refresh set to every page.
Hi, and thank you!

Totally forgot about those, shame on me.

My usual usage:
Wifi and sync off
Frontlight max 10% on half the reading time
Auto confort light on
Refresh every 6 pages (every page on manga)

Thanks!
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Old 11-24-2021, 05:36 PM   #4
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Quote:
Originally Posted by Fozkas View Post
Hi, and thank you!

Totally forgot about those, shame on me.

My usual usage:
Wifi and sync off
Frontlight max 10% on half the reading time
Auto confort light on
Refresh every 6 pages (every page on manga)

Thanks!
Yeah, no 40 hours, that's certain. I'm not sure you can get even half of it. If you want long battery life, the Sage is not for you.
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Old 11-24-2021, 05:56 PM   #5
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I spotted this YouTube video on the topic of Sage battery life just this morning, may be helpful to those wondering.
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Old 11-24-2021, 06:42 PM   #6
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Originally Posted by Sirtel View Post
Yeah, no 40 hours, that's certain. I'm not sure you can get even half of it. If you want long battery life, the Sage is not for you.
Thanks

I'm not looking for miracles, sure, but it i find it very odd to be so much shorter than the libra
Quote:
Originally Posted by graycyn View Post
I spotted this YouTube video on the topic of Sage battery life just this morning, may be helpful to those wondering.
Yeah, it is exactly after this kind of videos and some feedbacks on the main thread that i was hopping the juice would improve somewhat.
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Old 11-24-2021, 06:50 PM   #7
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In theory the battery of larger displays without backlight should last longer than smaller ones because you turn pages less frequent, right?
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Old 11-24-2021, 07:27 PM   #8
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In theory the battery of larger displays without backlight should last longer than smaller ones because you turn pages less frequent, right?
IIRC, NO e-ink ereaders have backlights. Many, otoh, have frontlights
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Old 11-24-2021, 08:38 PM   #9
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IIRC, NO e-ink ereaders have backlights. Many, otoh, have frontlights
Yeah, I mean that, frontlights. sorry.
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Old 11-25-2021, 03:39 AM   #10
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Forma is better as an ereader. It's lighter and far better battery.

Sage might have some nearly negligible display improvement, but the added weight is real, and the battery life in pure reader mode being significantly worse make it overall worse.
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Old 11-25-2021, 04:42 AM   #11
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Forma is better as an ereader. It's lighter and far better battery.

Sage might have some nearly negligible display improvement, but the added weight is real, and the battery life in pure reader mode being significantly worse make it overall worse.
I really considered it, but being so old a device (comparatively) i have some reservations.
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Old 11-25-2021, 06:22 AM   #12
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Yeah, no 40 hours, that's certain. I'm not sure you can get even half of it. If you want long battery life, the Sage is not for you.
I kind of figured that when I saw the Sage's specs and the size of the battery. It didn't seem like a good combination. Reminds me of the original Oasis.
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Old 11-25-2021, 06:33 AM   #13
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I kind of figured that when I saw the Sage's specs and the size of the battery. It didn't seem like a good combination. Reminds me of the original Oasis.
Well, that's not a deterrent to me personally, as I liked the original Oasis, and I'm never away from my home for longer than a few hours. I wish Kobo would release that power cover for the Sage, though. It's still not in stock anywhere.

Oh well. I guess I'll just have to plug the Sage in again tonight, when I get home.
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Old 11-25-2021, 09:02 AM   #14
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Well, that's not a deterrent to me personally, as I liked the original Oasis, and I'm never away from my home for longer than a few hours. I wish Kobo would release that power cover for the Sage, though. It's still not in stock anywhere.

Oh well. I guess I'll just have to plug the Sage in again tonight, when I get home.

So what is up with the availability of that power cover? Did they not produce enough? Or did some large firm buy all of them? Or was there some kind of battery failure? Or was the CEO sleeping while on the toilet?
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Old 11-25-2021, 09:11 AM   #15
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So what is up with the availability of that power cover? Did they not produce enough? Or did some large firm buy all of them? Or was there some kind of battery failure? Or was the CEO sleeping while on the toilet?
Possibly they had to release the Sage earlier than they planned, in response to the new Paperwhites from Amazon. And the power covers just weren't ready yet.

But of course I don't actually know. Maybe someone broke into their warehouse and ate the covers.
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