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Old 01-14-2019, 05:44 PM   #46
booklover6
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The Touch I have is really, really old, so I don't expect good battery life. I got it used in 2014, it was from 2011 I think. I don't use the SD card slot since there are only like 5 books on it.
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Old 01-14-2019, 05:50 PM   #47
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Originally Posted by christopher22 View Post
Yeah, version 3.11.0 seems to be a good one for the kobo touch - I think I will eventually roll it back and then test out v 3.19 for a while after I finish testing working with the latest firmware (since it's already loaded) for a couple of months. Are there any issues with books on the sd card with 3.11.0 or 3.19 versions? Has anyone noticed any sd card issues with the latest firmware? With the latest firmware available for the touch (I'm going to test drive it for a while) I'm noticing lines from menu boxes not getting cleaned up when they close - probably why the lines appear in sketch.
I completely forgot about that, but as of about 4.6, there has been some issues with the Touch and extra blocks of black being drawn. It is inconsistent. It doesn't seem to affect all the Touches, and it doesn't happen all the time. But, it is there.

I can't think of any SD card issues with 3.19. About the only one that has happened in the last couple of years was a problem if the card didn't have a label. That only lasted one firmware version and was easily worked around.
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As for the battery issue, I turned it on the other day and it was at 57%, as I kept it on while playing Sudoku the battery power rose all the way up to 69%. I think the batteries like to be fully charged? Or should I wait till it drains all the way down before doing a recharge on it.
They are Li-Ion batteries. There is no issue with partial charges. Just plug it in and charge and disconnect when you need to. But, It can be a good idea to do a couple of full discharge/recharge cycles occasionally to try and recalibrate the power meter.
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Old 01-15-2019, 04:12 PM   #48
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I'm on the discharge cycle now. Funnily, it was at 39% when I last turned it on and so I left it on and it jumped up to 51% - today it is 34% when I turned it on. Hopefully it will work better when I charge it next. However I don't think any battery is good to be left uncharged for a while - from what I know, crystals grow within the battery and if you let that happen long enough they puncture adjacent cells reducing the full potential of the battery even rendering it useless. Sometimes a higher voltage jolt will break up the crystals in the battery bringing it back to life. However that's only if the crystals haven't grown large enough to puncture adjacent cells within the battery.
In my case, my battery is not holding it's charge very well, but I'll have to see after a couple of discharge cycles if it gets better or stays the same and warrants a battery replacement.


Also I didn't realize on my wife and daughters Aura, they are running version 3.19 without issues (as far as I know).
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Old 01-15-2019, 05:32 PM   #49
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Quote:
Originally Posted by christopher22 View Post
I'm on the discharge cycle now. Funnily, it was at 39% when I last turned it on and so I left it on and it jumped up to 51% - today it is 34% when I turned it on. Hopefully it will work better when I charge it next. However I don't think any battery is good to be left uncharged for a while - from what I know, crystals grow within the battery and if you let that happen long enough they puncture adjacent cells reducing the full potential of the battery even rendering it useless. Sometimes a higher voltage jolt will break up the crystals in the battery bringing it back to life. However that's only if the crystals haven't grown large enough to puncture adjacent cells within the battery.
In my case, my battery is not holding it's charge very well, but I'll have to see after a couple of discharge cycles if it gets better or stays the same and warrants a battery replacement.


Also I didn't realize on my wife and daughters Aura, they are running version 3.19 without issues (as far as I know).
i have Firmware Version 3.16.0 on my original Aura which is my main ereader of choice. i have installed the latest Firmware 4.12.12111 on my Touch and i do like a lot of the new features that it as compared to 3.16.0, but my extremely strong disdain for the relatively new home screen will always prevent me from installing it on my Aura.

best wishes koboy
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Old 01-15-2019, 08:11 PM   #50
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Quote:
Originally Posted by christopher22 View Post
I'm on the discharge cycle now. Funnily, it was at 39% when I last turned it on and so I left it on and it jumped up to 51% - today it is 34% when I turned it on. Hopefully it will work better when I charge it next. However I don't think any battery is good to be left uncharged for a while - from what I know, crystals grow within the battery and if you let that happen long enough they puncture adjacent cells reducing the full potential of the battery even rendering it useless. Sometimes a higher voltage jolt will break up the crystals in the battery bringing it back to life. However that's only if the crystals haven't grown large enough to puncture adjacent cells within the battery.
In my case, my battery is not holding it's charge very well, but I'll have to see after a couple of discharge cycles if it gets better or stays the same and warrants a battery replacement.
Li-Ion batteries age and lose capacity with time. That starts the moment they are manufactured. Heavy use speeds this up, as does exposure to high temperatures. Not charging a battery is mainly a risk if the charge level drops to low. That makes the battery dangerous and the charging circuit should prevent the battery from being charged again.

The batteries in your Touch and Aura are at least four years old. Most will be holding less than half of their original capacity. A lot will be completely dead by this time. For my Touch's one is completely dead, the other lasts about a week in sleep. The Glo is better, but nowhere near the life when I got it.
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Old 01-16-2019, 06:57 PM   #51
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The failing battery kobo I have was at 25% when I got home from work today. I decided to charge it. When I plugged it in the charge jumped to 45 then to 60 then to 80, then 96% all basically within the time it took me to write this current sentence. Within less than 5 minutes, maybe 3 or 4 before the kobo was reading 100% fully charged.
I don't think they charge that fast, how long is a charge supposed to take?
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Old 01-16-2019, 07:06 PM   #52
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Quote:
Originally Posted by christopher22 View Post
The failing battery kobo I have was at 25% when I got home from work today. I decided to charge it. When I plugged it in the charge jumped to 45 then to 60 then to 80, then 96% all basically within the time it took me to write this current sentence. Within less than 5 minutes, maybe 3 or 4 before the kobo was reading 100% fully charged.
I don't think they charge that fast, how long is a charge supposed to take?
From empty, a good battery will probably take a couple for hours. But, I've never actually paid attention to it. Just plugged in and some time later noticed it was charged.

But, what you describe is symptom of a aging battery. Some will take time to charge, but, unplug the device, and the charge drops immediately. Some will do what you describe and appear to charge quickly, but won't actually hold the charge. I've never looked into why there is a difference. If could be something in the particular battery, or it could be something in the fuel gauge circuit. Basically, when a Li-Ion battery reaches this point, I know it is time to replace it. Or use it as an excuse to replace the device that uses it
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Old 01-16-2019, 07:14 PM   #53
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Or use it as an excuse to replace the device that uses it
I like what you say here, but the problem is getting the wife to agree with that. Perhaps it's almost time to permanently hook up to a powerbank - at least that's less risky than taking it apart and attempting to solder in a new battery - although I would be up for the challenge (I've successfully re-soldered permanent RAM chips in a laptop before)
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Old 01-16-2019, 07:24 PM   #54
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Quote:
Originally Posted by christopher22 View Post
I like what you say here, but the problem is getting the wife to agree with that.
I face the problem of, "Don't you have enough ereaders?" The last time that was asked, I showed her the Kobo Forma and the response was, "Thanks for the new ereader." It was expected.
Quote:
Perhaps it's almost time to permanently hook up to a powerbank - at least that's less risky than taking it apart and attempting to solder in a new battery - although I would be up for the challenge (I've successfully re-soldered permanent RAM chips in a laptop before)
All the Kobo ereaders I've opened, the battery connection isn't soldered. It is a plug of some sort. I can't remember if the people who have sourced replacement batteries got them with the correct plug, or had to do some splicing.
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