Develop Bugs

Screen killing battery

hello my phone doesnt last 1 day of charge and it says 40% is due to display/screen can anyone help me?

alvespt said:
hello my phone doesnt last 1 day of charge and it says 40% is due to display/screen can anyone help me?
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You can lower your brightness if it is not already at the lowest setting.

Unfortunately, the galaxy nexus has poor battery life. You could also try turning off data when you don't need it.
Sent from my Galaxy Nexus using Tapatalk

the screen is at lowest and it doesnt make sense turning of data if the problem is from screen right?

I'm having the exact same issue. Screen is totally eating up my battery life. It took 30 minutes for the battery to go down by like 10%. And the screen is 40% of the battery life issue.

Arrio said:
Unfortunately, the galaxy nexus has poor battery life.
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Maybe I just don't use the screen as much as you, but I don't find this to be true for me. I find it has great battery life. I don't sit for hours with the screen on, but I do regularly text and check emails throughout the day, do a bit of web browsing, take some calls, and play some Angry Birds or other games in the evening. The screen is always at the top of the list for battery usage, but even on an extreme day I still have more than 30% battery left by the time I go to bed. I throw it on the charger and I'm ready to go again in the morning.
I disagree that the Galaxy Nexus has poor battery life, in general. I would argue that: all high-end phones have "poor" battery life because of all the things they do (especially 720p screens), your personal use of it consumes a lot of power and you could benefit from an extended battery, or you have a faulty device.

hi there, i do that exact same things with no games, so less usage but i get less than a day... i love the phone but the batery is just no working...

I don't understand why people don't get that when you have a screen that is 4.65'' it will destroy the battery life. My screen use is always at 60% or more but yet I still get good battery life. The screen is going to use the majority of your battery when compared to other things, that's just how it is.

sorry but thats not the point, when you pay 700 for a top phone, that is suposed to be the google experience to carry arround wiith you and you can only get 10 hours of battery time something went wrong in the process...

Most phones are $600 to $700, and name one 4g phone that will last more than 10 hours with moderate use and no extended battery, just not going to happen. You need to reset your expectations.

GN battery is giving lots of trouble, too. I picked up the phone from charge and it was 100% charged. ! hour of usage with 3g on. Usage includes 1 hours or music and reading of pdf books simultaniously and battery is dropped to 61%.

alvespt said:
sorry but thats not the point, when you pay 700 for a top phone, that is suposed to be the google experience to carry arround wiith you and you can only get 10 hours of battery time something went wrong in the process...
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I think you should take a look at every other android phone that has come out with the same specs in the last year. Everything from the EVO 3d to the thunderbolt have their default battery's not last more than around 6-8 hours with constant use because of the screen & processors.
THis is why Verizon offered the extended batteries at a discounted rate right off the bat, because default batteries have never ever lasted that long in topof the line smartphones. FFS the new iphone 4s I've heard from a friend that their phones don't even last 24 hours.
I have a galaxy nexus, and mine has lasted... let me see.. one sec...1 day 3 hours and 25sec's with 35% left. (of course I have the extended battery) but here's the kicker: the extended battery has basically the same back as the regular phone does. so if they so desired, verizon could technically put out another extended battery just like all the rest of the phones, but they might not do that. I'm content with the battery life as it is almost identical as the droid X from which I came. The only difference is since I have a lot of un-updated apps for ice cream sandwich one of them is using "mediaserver" A LOT. I'm talking about that being the top of my battery draining with the screen being second. They both have taken ~20% with android OS itself taking 13, PlayerPro taking 13, and other random things like calls and txt msging taking ~10% each.
So I would suggest not trying to watch a lot of stuff on your phone while on battery, or don't expect your battery to survive long while watching stuff on that great screen

hymn thanks for the feedback so the only solution I see would be to go for a bigger battery. I'm from Portugal were could I buy one and whays the power?
Sent from my Galaxy Nexus using Tapatalk

If your screen usage is less than 50%, it be more worried about what else is killing your battery........

Got an extended battery...

...and its wicked (IMO..I've heard others not have good luck with them..)
Basically, I've gotten 22 hours of fairly heavy use.. web surfing, Facebook, gaming (order and chaos mostly) among other things....using auto-brightness.
Now that I have another battery...I'm going to unlock/root and get to work flashing like I did on my DX.
A question though.. If I use my extended battery exclusively, and keep my standard battery as backup... Will my standard slowly discharge over time not being plugged in? Idk much about batteries..
Thanks so much,
-Path
Sent from my Galaxy Nexus using Tapatalk

It will yes, expect it to loose approx 30% over a period of a year being idle. Nothing to worry about.

Oh okay. So popping it in once a month should keep it up then?
I just want to be sure I have one handy because I once got into a corner with my DX where I needed a full battery to .sbf and mine was half dead and wouldn't work...so I had to hunt a friend who also had a DX down to fix it lol. Just want to be sure I don't run into the same problem >.>
Sent from my Galaxy Nexus using Tapatalk

PathologyX said:
Oh okay. So popping it in once a month should keep it up then?
I just want to be sure I have one handy because I once got into a corner with my DX where I needed a full battery to .sbf and mine was half dead and wouldn't work...so I had to hunt a friend who also had a DX down to fix it lol. Just want to be sure I don't run into the same problem >.>
Sent from my Galaxy Nexus using Tapatalk
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It will lose very little capacity not being used. He meant it will lose charge just sitting there. Just don't let it sit empty. Or at full charge.
Sent from my Nexus in Texas.

You should be fine, lithium-ion batteries hold their charge pretty well. I've not actually tested them before, but try charging it to full and then booting up to see the charge in 28 days later, might be interesting to see.
I know my Nikon D7000 batteries hold their charge very well, I tend to leave one in the camera and discharge the one in the battery grip first and just use the battery for a month or so and swap them around. In the same sort of time, 28 days I can lose up to six percent this time of year, but I am going out everyday in temperatures as low as -12°C, so it's to be expected.

PathologyX said:
...and its wicked (IMO..I've heard others not have good luck with them..)
Basically, I've gotten 22 hours of fairly heavy use.. web surfing, Facebook, gaming (order and chaos mostly) among other things....using auto-brightness.
Now that I have another battery...I'm going to unlock/root and get to work flashing like I did on my DX.
A question though.. If I use my extended battery exclusively, and keep my standard battery as backup... Will my standard slowly discharge over time not being plugged in? Idk much about batteries..
Thanks so much,
-Path
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
For this Id like to know some additional information... what widgets you have running. Stock or ROM and what kernel. As well as settings like display, sync timing etc.

If you want to store your LiIon battery it's best for the battery to have ~40% charge. The battery will age the slowest this way.
Do not store it at 100% or 0%. Check every 6 months and recharge to ~40% if necessary.

Valynor said:
If you want to store your LiIon battery it's best for the battery to have ~40% charge. The battery will age the slowest this way.
Do not store it at 100% or 0%. Check every 6 months and recharge to ~40% if necessary.
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Click to collapse
This also reinforces what I've heard. Store these type of batteries around 1/2 charge never full never empty.

[Q] Charging time

How long you guys charge Tab S until fully charged? is it normal if my tab S fully charged only 1hour and half.. It suprises me cause Ive never have tab that can charged this fast. Im afraid my Tab have battery problem.

ayenzel said:
How long you guys charge Tab S until fully charged? is it normal if my tab S fully charged only 1hour and half.. It suprises me cause Ive never have tab that can charged this fast. Im afraid my Tab have battery problem.
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Click to collapse
My 8.4 takes about 2.5 to 3 hours on average using the stock travel charger. The 10.5 longer because of the larger battery.
Sent from my SM-G900F using Tapatalk

I just bought the device today, is it normal for the first time use the battery drain really fast, in just a minute 1% will drop.. Overall. only can use for 2 hours with data on.

ayenzel said:
I just bought the device today, is it normal for the first time use the battery drain really fast, in just a minute 1% will drop.. Overall. only can use for 2 hours with data on.
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Click to collapse
Batteries of this type usually take about a week to reach optimal condition.
Sent from my SM-G900F using Tapatalk

simacca said:
Batteries of this type usually take about a week to reach optimal condition.
Sent from my SM-G900F using Tapatalk
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really ????? oh god now i can rest in peace :good: i had bought the tab 10.5 yesterday and it drained so much battery :crying:

simacca said:
Batteries of this type usually take about a week to reach optimal condition.
Sent from my SM-G900F using Tapatalk
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Click to collapse
i noticed this on my tab 8.4LTE too, the battery simply drains away, almost close to rendering the tablet useless as I use this as my primary phone. tried playing online games and 30 mins later, it ate 40% of the battery (no unusual warm ups) i had this tab for almost a week now and it's still the same. i'm getting worried that i have battery issues

ThE_SoUrCe said:
i noticed this on my tab 8.4LTE too, the battery simply drains away, almost close to rendering the tablet useless as I use this as my primary phone. tried playing online games and 30 mins later, it ate 40% of the battery (no unusual warm ups) i had this tab for almost a week now and it's still the same. i'm getting worried that i have battery issues
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Click to collapse
same as me. I also use the LTE ver. It drains really quick which makes me feel like buying a cheap tablet. It only can stand for 2hours plus for heavy user. The screen is really beautiful but have to lower the brightness to save battery. such a waste.

ayenzel said:
same as me. I also use the LTE ver. It drains really quick which makes me feel like buying a cheap tablet. It only can stand for 2hours plus for heavy user. The screen is really beautiful but have to lower the brightness to save battery. such a waste.
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I have a friend here with a tab similar to ours but his battery life is superb. 5% drain /30mins on wifi. Mine dropped 3% asI type this lol. Could it be because we rooted our device?

ThE_SoUrCe said:
I have a friend here with a tab similar to ours but his battery life is superb. 5% drain /30mins on wifi. Mine dropped 3% asI type this lol. Could it be because we rooted our device?
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Click to collapse
I dont think its because of root, cause I didn't root my tab yet. does ur friend have lte version also? I also trying to use my tab only with wifi on and sim on (data off) still the same result.

ThE_SoUrCe said:
i noticed this on my tab 8.4LTE too, the battery simply drains away, almost close to rendering the tablet useless as I use this as my primary phone. tried playing online games and 30 mins later, it ate 40% of the battery (no unusual warm ups) i had this tab for almost a week now and it's still the same. i'm getting worried that i have battery issues
Click to expand...
Click to collapse
I was getting worried as well. Every time I've used it for anything other than movies my battery percentage has dropped like an aerodynamic rock. Browsing, games, magazines, etc. Movies (assuming because of the typically large amount of black pixels) look fantastic and the battery does quite with them, but for everyday consumption it left me concerned.
An hour ago I asked Amazon for an exchange which they did no questions asked. Perhaps round 2 will fare better. If not, I'll shed a tear as I give up this amazing display for another device altogether.

ayenzel said:
I dont think its because of root, cause I didn't root my tab yet. does ur friend have lte version also? I also trying to use my tab only with wifi on and sim on (data off) still the same result.
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Click to collapse
Yes. Lte version as well. I noticed that when he do wifi file transfers and other stuffs. Batt will drain as well.
I want a heads on comparison with his tab but it's hard since we use the tab differently. This is my primary phone while his is for browsing only. Tomorrow. I'll try to transfer s huge file via wifi and see if we'll have the similar percentage of battery drain. I already did the calibration as advised from another thread and it seems to work. A few more charge cycle might do the trick.

ayenzel said:
same as me. I also use the LTE ver. It drains really quick which makes me feel like buying a cheap tablet. It only can stand for 2hours plus for heavy user. The screen is really beautiful but have to lower the brightness to save battery. such a waste.
Click to expand...
Click to collapse
I use my screen on about a quarter of the slider during normal operations is plenty bright! Only need automatic when i am watching a movie

ayenzel said:
How long you guys charge Tab S until fully charged? is it normal if my tab S fully charged only 1hour and half.. It suprises me cause Ive never have tab that can charged this fast. Im afraid my Tab have battery problem.
Click to expand...
Click to collapse
My tab takes around 12 hours to be fully charged from ard 5%.
Is this normal?
Maybe I have a battery problem too.

jueeem said:
My tab takes around 12 hours to be fully charged from ard 5%.
Is this normal?
Maybe I have a battery problem too.
Click to expand...
Click to collapse
Same for me.... It takes forever to fully charge it (10,5 in)

I use a 10.5 LTE and it takes about 5 hours to fully charge. I recommend to switch it off while charging because when it's on you loose about 500mAh (also if the screen is off) and with a 2Ah charger if the battery sees (optimistically) 1.5Ah it takes 5h 20' plus the time required by the slow charge when it reaches 85-90%, so more than 6h.
Anyway I charge it every time I can when it goes under 50%, it's a big battery and needs a special care. Nothing to say about batterylife, excellent.

Most tablets/phones fast charge to 80% and then slow down for the last 20% , so if you don't need a full charge just grab it after it goes past 80% , your battery will live longer as well, as the closer you charge to 100% the more damage is done to your battery, it`s very small but it adds up.
Have a read of the link below, if you want to make the battery in your tablet live longer, if you have the money to easily replace it then don't worry, charge away
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
John.

Unaceptable battery life, tried everything... defective product?

Im seriously considering returning this item. I just bough the moto 360 yesterday and im getting unaceptable battery life. I see people on this forum able to use the watch for a full day and it still got battery while mine is struggling to run for 6 hours straight. Right now my watch has been running for 4 hours and a half and its down to 44%. I have tried every troubleshoot,I have resetted my watch 4 times now,I have cleared the cache of my application and reinstalled the whole thing. I even tried running it without any application installed, completely stock and my battery is still draining like crazy.
Im not using it that much. Right now I have insta weather installed,skymaster skin and wear battery stats and thats about it. I love this watch but i cant deal with this kind of ****. I consider myself pretty good with hardware and new accesories, and I cant believe how much time ive wasted trying to make this thing worked. Is there something to do really?

Try to use for is purpose for notifications if you bought yesterday and do all that things how are you going yo know which is is battery life with a normal use ?
The panel is who use al the battery , if u use ir forma notification you would get a day battery like a phone if you use youre phone for 4 hours you would drain your battery is battery life of your phone of 4 hours ? NO.

kollan69 said:
Try to use for is purpose for notifications if you bought yesterday and do all that things how are you going yo know which is is battery life with a normal use ?
The panel is who use al the battery , if u use ir forma notification you would get a day battery like a phone if you use youre phone for 4 hours you would drain your battery is battery life of your phone of 4 hours ? NO.
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Click to collapse
I have some difficulty understanding , but from what I can see you are telling me im using my watch to much? this is not the case. I just got back from work, and in 3 hours of work I lost about 30% of battery. this mean that my watch would be dead after 10 hours of small to none-use of my watch. I always see people talk about how theirs can last 18-24hours on average usage, are these people simply lying?

What do you have install ?

kollan69 said:
What do you have install ?
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Click to collapse
Insta weather
Skymaster clock
wear battery stats
all the rest is stock.
When im looking at the percentage of the usage of each app by google wear app ( nothing is showing with wear battery stats) it shows this
skymaster : 14%
Screen : 14%
Android wear : 9%
unknown Icon : 7%
Idle : 4%
Bluetooth : 3%
......

Try unistall Skymaster and instaweather

kollan69 said:
Try unistall Skymaster and instaweather
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Click to collapse
I already did try like I said, Ive tried running the watch stock and it was still losing battery life. Ive read somewhere that I need to completely empty my battery a couple of time before getting better?

Yes it will get better battery bit is not magicall remember

Lexite said:
I already did try like I said, Ive tried running the watch stock and it was still losing battery life. Ive read somewhere that I need to completely empty my battery a couple of time before getting better?
Click to expand...
Click to collapse
Also, as of right now, I keep losing contact with my watch. Bluetooth is fine and everything since I can change the look of my clock and settings.. but from time to time im losing connection with hangout and it do not send the messages to my watch.......

kollan69 said:
Yes it will get better battery bit is not magicall remember
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Click to collapse
Yea well, I still have 12 days left to try it and see if it gets better, If not im gonna have to return this watch. I need at least 10 hours.. I mean comon this is ridiculous getting 5 to 8 hours per charge.. Im doing 20 hours of heavy usage on my LG g3 right now so the watch would die on me 3 to 4 time by the time my phone die... this is ridiculous

That Skyweather app is incredibly poorly written and eating your battery like crazy! It looks like it's causing wakelocks! UNINSTALL IT! NOW! And don't put it back on your watch, ever!
And you never mentioned what screen settings you are using which can be a huge culprit for battery drain! If you care about battery life:
Do NOT use Ambient Mode!
Do NOT use Auto Brightness!
Set your watch on the lowest #1 brightness and leave it alone. Stop fiddling with it. Stop turning on the screen! I see a LOT of on-screen time! I know it's new and all but it's not a toy.
It's supposed to be for quick glances, not a replacement for your smartphone!
Put the watch into THEATER mode if you find your wrist movements are waking it up far too much and eating battery. Be smart.
Also, YES, fully charge and then fully drain the watch for several days to a week. (Bring your charger to work for this part.)
I did this and my battery is excellent. It worked for me so give it a try.

FallN said:
That Skyweather app is incredibly poorly written and eating your battery like crazy! It looks like it's causing wakelocks! UNINSTALL IT! NOW! And don't put it back on your watch, ever!
And you never mentioned what screen settings you are using which can be a huge culprit for battery drain! If you care about battery life:
Do NOT use Ambient Mode!
Do NOT use Auto Brightness!
Set your watch on the lowest #1 brightness and leave it alone. Stop fiddling with it. Stop turning on the screen! I see a LOT of on-screen time! I know it's new and all but it's not a toy.
It's supposed to be for quick glances, not a replacement for your smartphone!
Put the watch into THEATER mode if you find your wrist movements are waking it up far too much and eating battery. Be smart.
Also, YES, fully charge and then fully drain the watch for several days to a week. (Bring your charger to work for this part.)
I did this and my battery is excellent. It worked for me so give it a try.
Click to expand...
Click to collapse
Thanks for the information! Did you meant skymaster pilot watch face? i bough it for like 1$ but it looks like it is the biggest battery drainer

Lexite said:
Thanks for the information! Did you meant skymaster pilot watch face? i bough it for like 1$ but it looks like it is the biggest battery drainer
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Click to collapse
Use the new facer app and watchmaker no battery draining problems here.
---------- Post added at 09:01 AM ---------- Previous post was at 08:58 AM ----------
FallN said:
That Skyweather app is incredibly poorly written and eating your battery like crazy! It looks like it's causing wakelocks! UNINSTALL IT! NOW! And don't put it back on your watch, ever!
And you never mentioned what screen settings you are using which can be a huge culprit for battery drain! If you care about battery life:
Do NOT use Ambient Mode!
Do NOT use Auto Brightness!
Set your watch on the lowest #1 brightness and leave it alone. Stop fiddling with it. Stop turning on the screen! I see a LOT of on-screen time! I know it's new and all but it's not a toy.
It's supposed to be for quick glances, not a replacement for your smartphone!
Put the watch into THEATER mode if you find your wrist movements are waking it up far too much and eating battery. Be smart.
Also, YES, fully charge and then fully drain the watch for several days to a week. (Bring your charger to work for this part.)
I did this and my battery is excellent. It worked for me so give it a try.
Click to expand...
Click to collapse
One more tip that works well when you don't need to use your watch at night power it down and back on when you wake up and if you don't need notifications from your watch put it in aeroplane mode that turns bluetooth off big drainer when you need it take it out of aeroplane mode I get nearly 3 days use like this.

FallN said:
That Skyweather app is incredibly poorly written and eating your battery like crazy! It looks like it's causing wakelocks! UNINSTALL IT! NOW! And don't put it back on your watch, ever!
And you never mentioned what screen settings you are using which can be a huge culprit for battery drain! If you care about battery life:
Do NOT use Ambient Mode!
Do NOT use Auto Brightness!
Set your watch on the lowest #1 brightness and leave it alone. Stop fiddling with it. Stop turning on the screen! I see a LOT of on-screen time! I know it's new and all but it's not a toy.
It's supposed to be for quick glances, not a replacement for your smartphone!
Put the watch into THEATER mode if you find your wrist movements are waking it up far too much and eating battery. Be smart.
Also, YES, fully charge and then fully drain the watch for several days to a week. (Bring your charger to work for this part.)
I did this and my battery is excellent. It worked for me so give it a try.
Click to expand...
Click to collapse
Just be aware that theater mode seems to turn off vibrations.

"...If you care about battery life:"? It's good advice, however do you hear yourself? What you are basically saying is "don't use the features, shut it all down and use it only to look at the time (ahem, just get $35 timex if that is the case). That's kinda nuts for a product that is targeted to the general consumer. Motorola (or Lenovo or Google?) have a marginal product here at best. Thats bad because the smartwatch has been with us now for a number of years, the battery should be a lot better - especially at this fairly high price point. How many people have returned the 360 after a few days because the battery life is crap in real world use? I'm going to bet many did, unless they are like us tinkerers, programmers and devs here... Nobody and I mean nobody is going to know to do the the things you have outlined to "save" the battery. Consumers are just going to use it, show it off and load whatever is available on the app store..
I've said it before on these forums and I say it again... We are paying to beta test this watch for Motorola. The battery life is horrific and Motorola know it. It is a "toy" admittedly a cool one at that. But frankly... All of us 1st gen owners who are sticking it out should be getting coupons for a deep discount on gen 2.

jpt1 said:
"...If you care about battery life:"? It's good advice, however do you hear yourself? What you are basically saying is "don't use the features, shut it all down and use it only to look at the time (ahem, just get $35 timex if that is the case). That's kinda nuts for a product that is targeted to the general consumer. Samsung have a marginal product here at best. Thats bad because the smartwatch has been with us now for a number of years, the battery should be a lot better - especially at this fairly high price point. How many people have returned the 360 after a few days because the battery life is crap in real world use? I'm going to bet many did, unless they are like us tinkerers, programmers and devs here... Nobody and I mean nobody is going to know to do the the things you have outlined to "save" the battery. Consumers are just going to use it, show it off and load whatever is available on the app store..
I've said it before on these forums and I say it again... We are paying to beta test this watch for Samsung. The battery life is horrific and Samsung know it. It is a "toy" and a cool one at that. But frankly... All of us 1st gen owners who are sticking it out should be getting coupons for a deep discount on gen 2.
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Click to collapse
Umm, did you notice that you're in the Motorola Moto 360 forum?

same here i bought it tried to learn or play with the watch all day not all day few hour after it died but i didn't thought it was watch defective or w/e. its my own fault because i turned it on non-stop. i give it a normal usage a day after i bought it pretty much live to 20% on 9 hour on few times changing face theme and showing off to friends lol,, i think this watch will last 15hrs max on any heavy usage. those who said 1 or 2 day they're definitely lying or encouraging people to buy the watch or can be Motorola's hired scum bags

Guys, I am constantly getting at least 40 percent left at the end of my 12 hours day.
Using it for notifications only, as intended, plus some weather checking and replies by voice to incoming messages.
Ambient OFF
Auto brightness ON

norbu1987 said:
same here i bought it tried to learn or play with the watch all day not all day few hour after it died but i didn't thought it was watch defective or w/e. its my own fault because i turned it on non-stop. i give it a normal usage a day after i bought it pretty much live to 20% on 9 hour on few times changing face theme and showing off to friends lol,, i think this watch will last 15hrs max on any heavy usage. those who said 1 or 2 day they're definitely lying or encouraging people to buy the watch or can be Motorola's hired scum bags
Click to expand...
Click to collapse
While that post is pretty much in need of a complete rewrite, I will agree that I have no idea who these people are that are getting 2 days out of there watch on a single charge. I End the day at about 30% which is great, but it would be practically dead by morning if I wouldn't charge it over night.

I use InstaWeather and have no issues on battery life. Have you updated to the latest firmware? I can easily get a full day with plenty of battery life left at the end of the day. I'd return it for a different one. You may have issues. After the first update to 4.4, battery life for everyone went up dramatically.

[Q] expected battery life ?

I had to exchange my note earlier because there was a weird bug with it but I got the new one and it seems to be working fine. However the only problem with this one is that it just feels like the battery life is shorter than I remember it. Maybe it is just me but I wanted to know from other people what their battery life was in order to see if I need to send my unit to Samsung to repair or this is normal. I never got a chance to test my battery life in my old unit but in this one I use some Samsung battery monitor. I think G-sam battery monitor. So when looking at the results I am getting roughly around 4 hours or actual screen time. That just seems a lot lower to me than what I expected and it feels like I can't consistently use it for the whole day without the battery getting really low. I keep my brightness low at around 15% and it is updated to the latest version. Also I did a system restore to test if it was apps and even with like 5 apps installed the battery is still really low. Clash of clans for example drops the battery and heats up my unit really fast (like a percent a minute just about) Can anyone help me with this? Thanks.

bump
anyone?

I use it all day at work. Generally have about 40 to 50% left at end of the day. Battery usage is much higher if you use spen a lot, though.

Mine was the same way for a while. It used to last around 9 hours when I first got it. I charged mine every day for about a year and I think the battery just goes after a while. I ended up buying a new battery for about 60 dollars. Mine would heat up and shut down after playing games. After replacing battery it doesn't do that anymore. They have cheaper ones but I went with one that was a little more money and it was guaranteed for 1 full year or you're money back. Now I get about 6 hours of playing games and way more if I watch movies or listen to music. I don't even have to charge everyday anymore. I was going to buy a new tablet but I figured since I payed so much for this one I wanted to try with a new battery first. Battery's don't last forever. I bought on ebay and I think the name was new power 99. I might have even bought from there site. Ithink was easy to replace and comes with a DVD to show you how. Some games use a lot more power then others and clash of clans will use a lot cause there is so much going on in the game. I play gameloft games and some of them use a lot of power also.