Oasis Separate Charging Cover

[jbjb]

Originally Posted by howyoudoin

Just because you use the case to recharge, as opposed to USB, it makes absolutely no difference to it's inexorable march towards death (do you finally understand why it makes such a huge difference when a battery is 250 mAH as opposed to 1350??)

Li Ion battery life is a much more complex issue than your rather over-simplistic description.

For example, it seems likely that a typical usage pattern of an Oasis (certainly mine) would involve the device battery undergoing frequent top-up charges (being returned to the case between reading sessions) after partial discharges, rather than deep discharge/recharge cycles - this usage pattern will help prolong the battery life.

There are also other design factors which affect the battery lifetime - limiting discharge and recharge currents, trading off capacity vs. lifetime by restricting maximum charge levels etc. etc.

[disconnected]

I do own an Oasis and I do like it very much but I also have concerns about the battery -- not its distant future but its present. I've done several tests now, all under similar conditions, and the reading times I got were all distinctly different, ranging from just over two and a half hours to just under six hours. I can live with that but I'd be a lot happier if I knew that it was normal battery behavior rather than a sign of imminent demise.

I suppose it doesn't really matter; if it gets worse over the next year I guess Amazon will replace it.

I'm sorry if my battery obsession comes across as hostility.

[Atunah]

I am one of the battery obsessed myself. At least in the past I have been.

I cannot even tell how long the oasis lasts out the cover, I can't measure it. It keeps topping off in the cover so it never runs out. So for me the oasis without the cover does not have a separate battery life in my real life using conditions. I measure the battery for the package.

I read, put it in the cover in between, tops it off, I continue reading. I have a really long reading session at like 4 hours or so and still had almsot half the battery. Wifi on and using wiki and dictionary and store a lot during that. But again, its not a measurable thing for me overall as I put the 2 parts together during the day, all the time so I get about 5 days of reading with hours of reading each day.

I had some reading sessions in the past of 6 hours straight, but my bladder can't handle that anymore I don't think .

[webjunk]

Originally Posted by HarryT

Perhaps you like the device, and you'd like to replace the battery when it dies, rather than buy a new reader. There's a market in third-party replacement batteries for all Kindles. Some models are easy to change the battery, others (where everything is glued together) less so.

Given the length of time a battery will last, likely to outlast the device, that it being able to be replaced is somewhat moot, IMO, and should have no bearing on whether you buy any device. All batteries die eventually.

[webjunk]

Originally Posted by Atunah

I am one of the battery obsessed myself. At least in the past I have been.

I cannot even tell how long the oasis lasts out the cover, I can't measure it. It keeps topping off in the cover so it never runs out. So for me the oasis without the cover does not have a separate battery life in my real life using conditions. I measure the battery for the package.

I read, put it in the cover in between, tops it off, I continue reading. I have a really long reading session at like 4 hours or so and still had almsot half the battery. Wifi on and using wiki and dictionary and store a lot during that. But again, its not a measurable thing for me overall as I put the 2 parts together during the day, all the time so I get about 5 days of reading with hours of reading each day.

I had some reading sessions in the past of 6 hours straight, but my bladder can't handle that anymore I don't think .

I think that typifies usage of the device. It equates with my usage too.

[jbjb]

Originally Posted by Atunah

I cannot even tell how long the oasis lasts out the cover, I can't measure it. It keeps topping off in the cover so it never runs out. So for me the oasis without the cover does not have a separate battery life in my real life using conditions. I measure the battery for the package.

That's the way I use it too. Helpfully, the frequent shallow-discharge/recharge cycles are better for the device battery than the deeper discharge cycles that typified my use of my Paperwhite.

[Cinisajoy]

Originally Posted by disconnected

I do own an Oasis and I do like it very much but I also have concerns about the battery -- not its distant future but its present. I've done several tests now, all under similar conditions, and the reading times I got were all distinctly different, ranging from just over two and a half hours to just under six hours. I can live with that but I'd be a lot happier if I knew that it was normal battery behavior rather than a sign of imminent demise.

I suppose it doesn't really matter; if it gets worse over the next year I guess Amazon will replace it.

I'm sorry if my battery obsession comes across as hostility.

Other than your battery issues, do you like the Oasis?

[odamizu]

Originally Posted by Katie1

Why not chime in with Useful Information about the Oasis?

I Noticed No One has done a Review on MR that Owns an Oasis. Most every Fire Tablet Phone & Several of the e-ink reader have Very informative Review on here BUT Not One person with an Oasis has done a review on it.

Are you serious?!?

My review of the Oasis, posted on May 1: https://www.mobileread.com/forums/sho...09#post3309409

And I'm not the only one. Other Oasis owners have chimed in with "Useful Information" (as you put it, in all caps), but they are often dismissed and drowned out by negativity.

ETA: Sorry, I mispoke, it wasn't "all caps," but rather an unusual use of initial caps.

Originally Posted by Strether

... MR is a very hostile environment for those wanting to report positive reviews of their Oasis. Lots of people here wanting to disagree with you, without themselves owning the device. Just not worth the time and trouble.

I agree. I answer questions about the Oasis with great hesitation. The Oasis is not a perfect device, and it's not for everyone. But some of us like it, and when we say that, we seem to become targets.

[odamizu]

Originally Posted by Atunah

... I cannot even tell how long the oasis lasts out the cover, I can't measure it. It keeps topping off in the cover so it never runs out. So for me the oasis without the cover does not have a separate battery life in my real life using conditions. I measure the battery for the package.

I read, put it in the cover in between, tops it off, I continue reading. I have a really long reading session at like 4 hours or so and still had almsot half the battery. Wifi on and using wiki and dictionary and store a lot during that. But again, its not a measurable thing for me overall as I put the 2 parts together during the day, all the time so I get about 5 days of reading with hours of reading each day.

This is the way I use the Oasis, too. When I want to read, I pop the Oasis out of the cover. It will have a 90-94% charge. I usually only read for an hour or two, three tops, before taking some sort of break. At that point the Oasis battery will have dropped to maybe 80-85%. Then I pop it back into the cover, even if it's just for 10 minutes. I'm not really paying close attention, but so far the Oasis/cover battery combo is no worse than my Voyage and possibly better.

[Barbara1955]

Originally Posted by odamizu

Are you serious?!?

My review of the Oasis, posted on May 1: https://www.mobileread.com/forums/sho...09#post3309409

And I'm not the only one. Other Oasis owners have chimed in with "Useful Information" (as you put it, in all caps), but they are often dismissed and drowned out by negativity.



I agree. I answer questions about the Oasis with great hesitation. The Oasis is not a perfect device, and it's not for everyone. But some of us like it, and when we say that, we seem to become targets.

Only one I see acting nasty is you I don't have all caps any where in my post. People ask questions all the time on MR & usually they get answers but not with the oasis.

[Dr. Drib]

Originally Posted by disconnected

I do own an Oasis and I do like it very much but I also have concerns about the battery -- not its distant future but its present. I've done several tests now, all under similar conditions, and the reading times I got were all distinctly different, ranging from just over two and a half hours to just under six hours. I can live with that but I'd be a lot happier if I knew that it was normal battery behavior rather than a sign of imminent demise.

I suppose it doesn't really matter; if it gets worse over the next year I guess Amazon will replace it.

I'm sorry if my battery obsession comes across as hostility.

You may wish to update your 'DEVICE' info on your Profile.

[disconnected]

Originally Posted by Cinisajoy

Other than your battery issues, do you like the Oasis?

I'm surprised at how much I like it. Its pictures don't do it justice.

I was hesitant about ordering it because I haven't had great luck with Kindle screens but this one is very good, the best I've seen. I've also always had a problem with the limited font sizes on my Kindles. I always wanted something between the fourth and fifth sizes. The Oasis screen is so good that I'm fine with the fourth size.

I've always wondered how people managed to hold on to their ereaders without covers. I'm a weakling and a klutz -- ereaders just seem to want to fly out of my hands. The Oasis is so light and well-balanced that I'm actually able to hold it in one hand without the cover. People have mentioned being bothered by the asymmetry of it but in person it seems like a logical way for it to be.

I think I've spent about enough time obsessing about the batteries.

[disconnected]

Originally Posted by Dr. Drib

You may wish to update your 'DEVICE' info on your Profile.

Wow, that is a blast from the past. I guess I hadn't looked at my profile in quite a while.

[howyoudoin]

Originally Posted by jbjb

Li Ion battery life is a much more complex issue than your rather over-simplistic description.

For example, it seems likely that a typical usage pattern of an Oasis (certainly mine) would involve the device battery undergoing frequent top-up charges (being returned to the case between reading sessions) after partial discharges, rather than deep discharge/recharge cycles - this usage pattern will help prolong the battery life.
.

That is true, but what difference does it make? If one were to mention each and every possibility, it would be a very long post indeed.

Frequent top up charges make a small difference. Three partial charges of 33%, for instance, together make up one single 100% cycle. Charge cycles are going to be used up, no matter what the distribution.

[Wearever]

Originally Posted by disconnected

I do own an Oasis and I do like it very much but I also have concerns about the battery -- not its distant future but its present. I've done several tests now, all under similar conditions, and the reading times I got were all distinctly different, ranging from just over two and a half hours to just under six hours. I can live with that but I'd be a lot happier if I knew that it was normal battery behavior rather than a sign of imminent demise.

I suppose it doesn't really matter; if it gets worse over the next year I guess Amazon will replace it.

I'm sorry if my battery obsession comes across as hostility.

I never thought your questions about your battery usage were obsessive and certainly never hostile. You were just wondering about it, and this is the place to ask questions, if you have them. Someone will have the answers at some point.