I got the kindle fire about a week ago. Since that time I have received okay battery life. I don't love or hate it. I decided to check to see if something odd in the background was running. I ran a battery saver program, probably juicedefender, and found that the GPS was on. Wait, what!? There is no GPS in the Fire. So I installed GoLauncher, and used the native power manager to turn it off. These are just preliminary results, but battery life seems to have increased a lot. It could also just be a placebo, but I guess that having the GPS on could be something amazon forgot to remove in the code, and created an endless processing loop. Just a guess, I would love to hear some other thoughts on this.
the only way to tell is the drain the battery doing the exact same thing between changes. i've been tinkering around with my kindle as well because there has to be *something* which explains how the nook tablet can get an extra 2-3 hours on the same capacity battery...
Something... But the Nook actually has 4000 mah battery, while the Fire has a 4400 mah battery, so it has a smaller battery, and better battery life. I would then guess, it is software related, because hardware is virtually identical.
What are you guys considering a bad battery, because I couldn't be more satisfied with mine.. Two days of HEAVY use with the display on for a total of 6 hrs -- is that not what you're all getting? And if so, how is that not good for a dual core processor running on a 7" IPS display?
How did you disable the GPS?
Sent from my Kindle Fire using xda premium
nikcomp said:
How did you disable the GPS?
Sent from my Kindle Fire using xda premium
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Would like to know too.
Not terribly impressed with the battery life on the KF compared to the Nook Color (which seemed to last FOREVER)
nikcomp said:
How did you disable the GPS?
Sent from my Kindle Fire using xda premium
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I was using ADW EX launcher and just did a long tap on screen, added widget, power control.
And it added the little toggle bar that most droid phones have with notification bar.
Wifi was on, blue tooth area was blank, then gps, sound, and autorotate.
I confirmed gps was lit up. tapped it, to disable then removed the widget.
I did the exact same thing. Pretty simple.
surprise surprise....
i did a battery test of the nook tablet vs the kindle fire today (i own both and intend to return one). i had a game running as my test (jelly defense), wifi off, screen brightness max.
nook tablet died at 4 hours. kindle fire lasted an extra hour.
so either all the build.prop stuff i did made a difference, or my nook tablet's battery is defective and i need recalibrate it....
hyperbling said:
so either all the build.prop stuff i did made a difference, or my nook tablet's battery is defective and i need recalibrate it....
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Just noting that there seems to be issues with battery life that factory resets seem to fix (oddly), so it might be worth resetting either/both devices if you see drastically lower than expected battery lives.
hyperbling said:
so either all the build.prop stuff i did made a difference, or my nook tablet's battery is defective and i need recalibrate it....
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Could you list your build.prop stuff? Much appreciated!
Prior to flashing CM9 to my kindle my battery life on stock kindle fire was amazing. If I didn't touch my kindle for days it seemed as if my battery didn't even move. After flashing the rom the kindle is dying in two days with hardly any use. What can I do to extend the battery life to match what it used to be without reverting to stock?
This is what I currently have it flashed to:
gedeROM
I recommend battery widget pro. There is a free version as well.
Constant drain when the screen is off is irregular. This app should help you diagnose if you have constant discharging and what apps might be the culprit.
Sent from my CM10 KF w/ Tapatalk
You won't get the same battery life. You can try modoca rom... its the price you pay for cm9
Sent from my GT-N7000 using Tapatalk 2
I've been using the power bar widget to turn off wi-fi from my home screen, until I need it, and turn it off before putting the KF to sleep. That's helped mine a lot.
I jumped in and bought a K1 to replace my dying GPad GPE. After 3 days, this seems like a huge mistake.
The K1 is very laggy in basic apps like Play Store and Chrome, does not register touches very well and has terrible battery life. I even charged it overnight and didn't get a full charge. On top of that, I am constantly getting the screen overlay message any time I need to enable a permission.
What could be causing this? This tablet is so highly regarded I don't get it.
Sent from my SHIELD Tablet K1 using Tapatalk
For charging you need a 2 or 2,5 A charger. Then it will charge (if it's not faulty) in around 2 hours. The screen overlay message is coming from the quick launcher (or how it is called). So disable it or give it the right to draw over other apps.
I don't have problems with lags or touches. Are you on the latest updates?
PearlMikeJam said:
I jumped in and bought a K1 to replace my dying GPad GPE. After 3 days, this seems like a huge mistake.
The K1 is very laggy in basic apps like Play Store and Chrome, does not register touches very well and has terrible battery life. I even charged it overnight and didn't get a full charge. On top of that, I am constantly getting the screen overlay message any time I need to enable a permission.
What could be causing this? This tablet is so highly regarded I don't get it.
Sent from my SHIELD Tablet K1 using Tapatalk
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Its got a crappy Nvidia CPU in it, thats the issue. Like my N9, that too is crap, again, Nvidia inside.
edisso10018 said:
For charging you need a 2 or 2,5 A charger. Then it will charge (if it's not faulty) in around 2 hours. The screen overlay message is coming from the quick launcher (or how it is called). So disable it or give it the right to draw over other apps.
I don't have problems with lags or touches. Are you on the latest updates?
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I am using the correct rated charger. This even happened when charging with the tablet off.
I am on the latest update. I waited to install my apps until after all updates were applied. The touch issues may be lag related. The back button almost always requires multiple touches. Keyboards often time register multiple touches or just freezes.
I am also noticing network issues. Apps report loss of connection when the wifi shows connected.
I hate to say it, but I am leaning towards returning this for a Samsung.
Sent from my SHIELD Tablet K1 using Tapatalk
PearlMikeJam said:
I jumped in and bought a K1 to replace my dying GPad GPE. After 3 days, this seems like a huge mistake.
The K1 is very laggy in basic apps like Play Store and Chrome, does not register touches very well and has terrible battery life. I even charged it overnight and didn't get a full charge. On top of that, I am constantly getting the screen overlay message any time I need to enable a permission.
What could be causing this? This tablet is so highly regarded I don't get it.
Sent from my SHIELD Tablet K1 using Tapatalk
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Also a recent owner of the k1. Running stock firmware (1.5) but with BitO-K kernel. The only thing I am experiencing is mediocre battery life, charges from 50-100% in under an hour using a 2.5A charger. The only thing that sucks, and this goes for android tablets in general, is the removal from 4.4 of the TabletUI. Seeing we're already at 7.1 and TabletUI is still dead, it looks like we'll have to fight to get it back again.
PearlMikeJam said:
I am using the correct rated charger. This even happened when charging with the tablet off.
I am on the latest update. I waited to install my apps until after all updates were applied. The touch issues may be lag related. The back button almost always requires multiple touches. Keyboards often time register multiple touches or just freezes.
I am also noticing network issues. Apps report loss of connection when the wifi shows connected.
I hate to say it, but I am leaning towards returning this for a Samsung.
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That lag is not normal. And my tablet charges from around 10% to full in about 2 hours. Maybe you should try a factory reset. If that doesn't help I would return it.
I won't buy a Samsung tablet. I would try a replacement. I own the k1 for a year now and I'm still very satisfied with. And Nvidia updates it. Which Samsung usually doesn't.
Don't listen to Nvidia trolls... ⬆
Your experience does not sound typical. Perhaps it's a hardware issue, but I agree with @edisso10018 that the first step would be a factory reset.
Wish you luck!
The Nvidia CPU is pretty good shame it's not the X1, It performs better then some of my phones with QC chips, Do a factory reset and see if the lag is still there, Battery life is poor can agree on that
My k1 is over a year old it is still playing games with no trouble yes a agree with the battery life but mine charges with no problems a have noticed a little slow down but am not running bit os updated kernel yet but a still rate 10/10 best tablet a ever owned.
Tablet is laggy, no denying it.
Sent from my Pixel XL using Tapatalk
ctap001 said:
Also a recent owner of the k1. Running stock firmware (1.5) but with BitO-K kernel. The only thing I am experiencing is mediocre battery life, charges from 50-100% in under an hour using a 2.5A charger. The only thing that sucks, and this goes for android tablets in general, is the removal from 4.4 of the TabletUI. Seeing we're already at 7.1 and TabletUI is still dead, it looks like we'll have to fight to get it back again.
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K1 here-- I don't run stock (DU 6.0.1), but I used BitOK for a while and realized its not very good. Switched back to stock kernel (from my ROM) and its more stable. You don't lose out on much anyway-- BitOK doesn't have features I want like voltage control. Examples of instability caued by BitOK: GPU was stuck at ~350mhz, would not ramp down fully to 72mhz. Also stock is smoother. You can still use adiutor to monitor and control a few things.
One more thing: be very careful when flashing blobs and other stuff in fastboot that it is for the K1 version and not OG shield! A lot of devs posting these things arent explicit as to which version. DTBs and Blobs are specific to the shield type-- one might work for the wrong tablet version, or it might brick it, or it might be unstable.
As for the Batery life I can tell you it does suck even on the best case scenario. There is no way around this as it is small and the large screen, as nice as it is, sucks a lot of juice. Lowering brightness helps somewhat but still I'll be lucky to get a couple hours of SOT out of it.
For the price its a great tablet, with a few small compromises, such as bat life, but thats the price you pay for great screen and sound at a cheap price. We are lucky to have at least a few devs still doing work with this device, and luckier still that nvidia is STILL supporting it with updates, even if slowly. They recently announced 7.1.1 will be forthcoming.
Mine was laggy too, I flashed stock firmware with my PC and now it's working perfectly.
Bought mine as a refurb and it works fine. I think you either have bad hardware, or a bad install. Try flashing stock and see if it improves.
Tbh my only complaint is with battery life, I switched to BitO to see if it got any better, the tablet is smoother with this kernel than stock but the battery is the same, I wish we had UV'ing, my favorite setting on any kernel, back on my N10 my battery could easily be improved 10-15% and the heat was reduced drastically, good binned ones could shave up to 200mV on some steps. K wish this was implemented
PearlMikeJam said:
I jumped in and bought a K1 to replace my dying GPad GPE. After 3 days, this seems like a huge mistake.
The K1 is very laggy in basic apps like Play Store and Chrome, does not register touches very well and has terrible battery life. I even charged it overnight and didn't get a full charge. On top of that, I am constantly getting the screen overlay message any time I need to enable a permission.
What could be causing this? This tablet is so highly regarded I don't get it.
Sent from my SHIELD Tablet K1 using Tapatalk
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I just bought a K1 (discount price 169€) and I don't have this problem at all. Even if I use only 1 core (settings performance) for basic app it's smooth smooth smooth.
And the battery life is huge !!
For gaming tho I switch back ofc the performance setting.
:good:
I bought a K1 three weeks ago to use as a display for my phantom 4 quadcopter. I am very impressed with its performance. I'm not experiencing any lag other than at startup. Once it's up and startup is finalized I dont have any problems. The battery life isn't great, I'll agree there but hopefully it gets better with Nougat.
Sent from my SM-G925P using XDA-Developers Legacy app
I bought a K1 last week to replace my aging Nexus 7, did a factory reset and still wasn't satisfied with it being laggy. Did my share of Google searching and finally stumbled upon a quick fix to try : disable Daydream. Since changing this one setting it has been very smooth since, no issue for lag or touch registrations.
Give it a try, might not help your charging but I did notice a much reduced battery drain while sleeping also.
My only other changes were to root, change the DPI to 240 and use the Google Now Launcher which compliments the display nicely.
I wasn't happy with it as well until I flashed cyanogenmod 13 and a custom kernel with overclock. Now it's a beast, battery is great, signal as well. And I also now have the option to OC the processor to 2.5 GHz before I play some more demanding games and then set it back to 2.2 or even lower if I won't need all the juice. Seriously, the stock marshmallow ROM sucks, I have only heard bad stuff about it. Also, the nougat update is about to come out so I'd give android N a chance, too.
About the battery life -- see which apps are using the most juice under settings/battery/. Some of them may be using more CPU cores, and have a higher frame rate than is needed. Go to settings/App optimisation/ and crank the numbers down. Next go to settings/Accounts and see the long list of things that want to autosync with you. Turn the autosync off for those you aren't using. Turning off wifi except when I am using it has made a significant difference for me as well.
grävling said:
About the battery life -- see which apps are using the most juice under settings/battery/. Some of them may be using more CPU cores, and have a higher frame rate than is needed. Go to settings/App optimisation/ and crank the numbers down. Next go to settings/Accounts and see the long list of things that want to autosync with you. Turn the autosync off for those you aren't using. Turning off wifi except when I am using it has made a significant difference for me as well.
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Putting the CPU at 80 or 90% CPU speed in the performance settings will get you that reduced power consumption. You might not even notice the speed difference. These speed tiers also run at lower voltage.
Using the GPU frame rate limiter will dramatically extend gaming time too. I find 30 fps acceptable most of the time.
Of course it would be nice to run the thing unrestricted, but it's just not practical when you also want battery life. Look at what Nintendo is doing with the clock speeds of the X1 in the Switch.
After rooting and applying the patches found here:
https://forum.xda-developers.com/ve...-to-notes-root-install-xposed-unroot-t3411039
How is battery life before and after root? It's the only things that's keeping my from rooting right now
I got an s7 snapdragon rooted on 6.0.1
I've seen around that the heating problem is due to the cpu governor so I installed kernel adiutor i set the first cpu to conservative and 2nd to powersave (snapdragon shows something like 2 dualcores on adiutor)..that fixed it..
also i used buildprop editor to fix the wifi not saving after restart (apparently only happens when rooted)
and then lucky patcher to remove a bunch of system apps and that security.log.agent crap that keeps spitting out warnings every 2 minutes about "unauthorized actions have been detected..."
then i have lucky patcher also patching my youtube app on boot (the adaway one..not the xposed module) so i can have the redyoutube features..like background play...and no ads
I got the "always on display setting" set to off and gps off
basically I leave home on a 100% charge..get to work (25mins away driving) on a 99% charge...
spend my whole shift playing youtube video music playlists (on wifi using a bluetooth speaker)
and I get home with about 45% left....
I work 11 hours/day so I'd say the battery is pretty effing awesome...
my s3 would just die after like 3/4 hours of youtube play and I had a 3400mah battery in it (which is bigger than the one in s7)
I guess its just the hardware etc...that just uses less battery
anything that can last me a whole shift without recharging is awesome...using only about half? even better xD
my girlfriend has the lg g3 which im not sure about the specs now..but that one also was able to last me a whole shift...I have her on cyanogenmod nougat..rooted..same youtube stuff
so yeah...my switch from s3 to s7 def worth it xD
Battery life doesn't depends on Rooted or non rooted device. But in a rooted device you can use Luck Patcher to remove unwanted system apps to boost your Android battery life.
androikinfo said:
Battery life doesn't depends on Rooted or non rooted device. But in a rooted device you can use Luck Patcher to remove unwanted system apps to boost your Android battery life.
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Engboot (which allows root) causes worse battery life.
SkyAttacksX said:
Engboot (which allows root) causes worse battery life.
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Ok, I didn't know that.
Quick reminder that a complete power down is sometimes required to fully 'reset' a 3rd gen HDX ... especially radios, sensors and some kernel related issues (eg: restore default governor tunings).
A recent trouble shooting exercise involving unexplained battery drain served as a potent example. Performed numerous full (vs hot/soft) reboots over the course of several days chasing a zombie battery drain. Eventually powered down for 5 sec and restarted which full resolved the issue. I have had similar experiences with TWRP where some actions could not be performed until the device cold booted into recovery. YMMV.
Davey126 said:
Quick reminder that a complete power down is sometimes required to fully 'reset' a 3rd gen HDX ... especially radios, sensors and some kernel related issues (eg: restore default governor tunings).
A recent trouble shooting excercise involving unexplained battery drain served as a potent example. Performed numerous full (vs hot/soft) reboots over the course of several days chaising a zombie battery drain. Eventually powered down for 5 sec and restarted which full resolved the issue. I have had similar experiences with TWRP where some actions could not be performed until the device cold booted into recovery. YMMV.
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This is the 5th gen 7 forum, not 3rd gen hdx. I'm assuming this also applies to this tablet, so maybe remove hdx references to make it more general.
Sent from my Amazon Fire using XDA Labs
PorygonZRocks said:
This is the 5th gen 7 forum, not 3rd gen hdx. I'm assuming this also applies to this tablet, so maybe remove hdx references to make it more general.
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D'oh - my error! Work with several different Amazon devices and occasionally post to the wrong boards. I have not had similar experiences with 5th gen tablets although they might behave the same way. Thanks for pointing out the oversight.
Closed per OP request