The right tool for the right job

[HarryT]

Originally Posted by ilovejedd

By the way, the biggest power drain on the iPad is the display. If you're just gonna keep it on standby, it actually lasts several weeks or more thanks to the *huge* battery. iPad (2018) ~30Wh, iPad Pro 12.9 (2015/2017) ~40Wh.

The one thing that kills an iPad on standby is Bluetooth. If you leave BT enabled, the battery drains fairly quickly. Turn it off and the battery will last for weeks.

[j.p.s]

Originally Posted by ilovejedd

I'm guessing due to the smaller battery (perhaps dual-core processor, too), the Oasis wouldn't have as long a standby time as the lower end Kindles.

Has anyone done multi-day (or week) tests on the Oasis 2 yet? In airplane mode, it might do better than low end kindles (except for maybe the PW4, which also has deep sleep, hibernate, or whatever actually happens in power save).

Maybe pwalker8 will be kind enough to go with the oasis and report results, since the test matches his primary use case.

[ilovejedd]

Originally Posted by j.p.s

Has anyone done multi-day (or week) tests on the Oasis 2 yet? In airplane mode, it might do better than low end kindles (except for maybe the PW4, which also has deep sleep, hibernate, or whatever actually happens in power save).

Maybe pwalker8 will be kind enough to go with the oasis and report results, since the test matches his primary use case.

I don't have the Oasis but I do have the PW4.

It seems the only thing deep sleep does is prevent battery from draining much more quickly compared to older Paperwhites. I tried disabling deep sleep on my PW4 and it lasted like 1-2 days on standby.

Originally Posted by HarryT

The one thing that kills an iPad on standby is Bluetooth. If you leave BT enabled, the battery drains fairly quickly. Turn it off and the battery will last for weeks.

This. I'm testing a new Oasis 2, at first I was stunned by how fast the battery drained. Then I read more here on MR and realized 2 things:

1. Indexing a bunch of new books you load onto a Kindle takes a while and drains battery fast. Mine was still indexing.

2. I needed to turn on airplane mode, which disables: 3G cellular (if you have that), Wifi, and Bluetooth.

Battery now is right where I'd expect. It dropped 1% over night in sleep mode. When I read with the light set at "10", and it only drops 3 to 4 % points per hour. Of course mine's new, so I don't know how this battery will break in and perform over time.

[pwalker8]

Originally Posted by HarryT

The specified range of storage temperatures for a Kindle is -10C to 45C (14F to 113F), and I'm sure there's a fair amount of tolerance built into that. I'm certainly not suggesting leaving a reader in direct sunlight in summer in your car, but it should be OK in the glove box.

I've kept an iPhone without a sim in my car year round for several years with no problems. I used it for audiobooks and music. I just stick it in the console and no problems. I do tend to park in the shade if I can and I do have sun screens for the windshield.

[theducks]

Cold (<0C) is also a problem for batteries. Why not leave the charge cord attached if you are really worried. ? My cigarette lighter is on the ignition switch (and was for all my cars since 1973 models)

BTW 4hours on a 1A USB charger takes my K4 from flat (won't stay on) to full.

[pwalker8]

Originally Posted by theducks

Cold (<0C) is also a problem for batteries. Why not leave the charge cord attached if you are really worried. ? My cigarette lighter is on the ignition switch (and was for all my cars since 1973 models)

BTW 4hours on a 1A USB charger takes my K4 from flat (won't stay on) to full.

That's a good idea, especially if it fits in the console. Thanks for the suggestion. I normally use a mophie case for the iPhone, so it's always being charged. As far as I can tell, there is no downside to the practice.

[pwalker8]

I got the new Oasis yesterday. I got the 32G model, so it easily holds all my Kindle ebooks. Just wish that Amazon had a way to say "just download everything" by no, you have to download them one by one. I now have everything downloaded on the Oasis and created a few collections to hold the various books in my to be read list. I just need to remember to remove and add ebooks as I read and buy them respectively. It fits easily in my console. Right now, I've got it connected to the charger on my kitchen. It's still indexing, which sucks down the juice like mad. Once it finishes that, I'll see how well the battery last sitting in the car. I'll have it hooked in to charge when the car is on.

[HarryT]

Originally Posted by pwalker8

I got the new Oasis yesterday. I got the 32G model, so it easily holds all my Kindle ebooks. Just wish that Amazon had a way to say "just download everything" by no, you have to download them one by one.

Do you not use Calibre to manage your book library? If you don't, I'd really suggest that you consider doing so - it makes things like this so very much easier.

I hope you enjoy using your new Oasis - it's my favourite reading device by far. The extra 1" of screen size makes a surprising amount of difference to readability!

[pwalker8]

Originally Posted by HarryT

Do you not use Calibre to manage your book library? If you don't, I'd really suggest that you consider doing so - it makes things like this so very much easier.

I hope you enjoy using your new Oasis - it's my favourite reading device by far. The extra 1" of screen size makes a surprising amount of difference to readability!

I do, but to a great extent, the point of this particular device is to mostly sit in my car for those occasions when I forget my iPad. Thus I'm trying to keep it at a point where I can manage it via wifi connections, rather than hooking it up to my computer. That means mostly via Amazon kindle connection. Plus, I wanted the flexibility of syncing locations between my kindle device and the kindle app on my iPad, if I start reading something during lunch and then want to finish it later at home.

I do manage my Kobo device via calibre. In general, the first thing that I do when I get a new book is remove the DRM and convert the book to epub format. I don't bother converting the various epub books that I've purchased over the years (Baen, Sony and Apple) to mobi format though.

[theducks]

Originally Posted by pwalker8

I got the new Oasis yesterday. I got the 32G model, so it easily holds all my Kindle ebooks. Just wish that Amazon had a way to say "just download everything" by no, you have to download them one by one. I now have everything downloaded on the Oasis and created a few collections to hold the various books in my to be read list. I just need to remember to remove and add ebooks as I read and buy them respectively. It fits easily in my console. Right now, I've got it connected to the charger on my kitchen. It's still indexing, which sucks down the juice like mad. Once it finishes that, I'll see how well the battery last sitting in the car. I'll have it hooked in to charge when the car is on.

I think if you go to your Amazon digital content page (using a browser), you can select All and deliver to...

[pwalker8]

Originally Posted by theducks

I think if you go to your Amazon digital content page (using a browser), you can select All and deliver to...

That would have been faster, however, select all only selects the books visible on the page, i.e. 200. Still it would have been faster, I think.

[JSWolf]

Originally Posted by HarryT

The specified range of storage temperatures for a Kindle is -10C to 45C (14F to 113F), and I'm sure there's a fair amount of tolerance built into that. I'm certainly not suggesting leaving a reader in direct sunlight in summer in your car, but it should be OK in the glove box.

http://heatkills.org/how-hot/

At 70 degrees on a sunny day, after a half hour, the temperature inside a car is 104 degrees. After an hour, it can reach 113 degrees.” “When temperatures outside range from 80 degrees to 100 degrees, the temperature inside a car parked in direct sunlight can quickly climb to between 130 to 172.”

Then you take your really hot eInk Reader into an air conditioned building and if it's a glass substraight, it can shatter. Also, it's not good for the battery to be sitting in so hot temps. Atlanta, GA an get much hotter in the summer then 70 degrees. So it's not a good idea at all to keep a reader in a car that can be that hot. Same goes the other way with cold. Even a Reader with a plastic screen can be damaged in the heat/cold when brought into a building with such a temperature difference. It's not good for the electronics.

[HarryT]

Originally Posted by JSWolf

[url]Then you take your really hot eInk Reader into an air conditioned building and if it's a glass substraight, it can shatter.

It's very, very thin glass, which means that it's extremely unlikely to break due to thermal shock. It's thick glass that breaks in those circumstances.

[JSWolf]

Originally Posted by pwalker8

There is no perfect device like this, but the one that is closest is the Kindle Oasis. It's bigger and has a battery that will hold a charge. Since I get some 90+ percent of my books from Amazon, I can download books fairly easily to it. It doesn't sync with Marvin, but it does sync with the Amazon app on my iPads. I think this will work, or at least work better than using my iPhone.

The thing is, you like using Marvin. Marvin uses ePub. Kobo uses ePub. So you'd be best with a Kobo. You will get a much closer reading experience with Kobo then you will with Kindle. Also, the Kindle app on an iPhone (even a +) is terrible. The margins are way too big and that makes the lines a bit short.

As I said before, a glass backed screen can shatter when going from one temp extreme to another and I have no idea if a plastic backed screen would melt in your car in the summer.