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I have always wondered when the 4g sign gets the little zzz on top of it replacing the little wifi type sign, does it mean that the 4g is temporary disabled or that there's no data being transfered over its connection.
In short, is it equivalent to the arrows on the 3g sign being grayed out instead of colored in?
Sent from my SPH-D700 using XDA App
yes, in other words its sleeping
Does that mean it's not draining my battery like it does on tha Evo ? Because they tell me to turn tha toggle off on my Evo if im not in a 4g area.I hope I made any sense.thx
Pito2k6 said:
Does that mean it's not draining my battery like it does on tha Evo ? Because they tell me to turn tha toggle off on my Evo if im not in a 4g area.I hope I made any sense.thx
Click to expand...
Click to collapse
That is a good question. I want to know the answer to that myself. If your not in a 4g area then it will use up more battery because your device will be searching for a 4g signal. But if your getting 4g signal I don't really know if it uses more battery by keeping it on.
I keep my 4g on all the time. My battery life was crappy before using 4g and it just as crappy after using it.
Silent25r said:
That is a good question. I want to know the answer to that myself. If your not in a 4g area then it will use up more battery because your device will be searching for a 4g signal. But if your getting 4g signal I don't really know if it uses more battery by keeping it on.
I keep my 4g on all the time. My battery life was crappy before using 4g and it just as crappy after using it.
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Click to collapse
i imagine that the radio for 4g uses more then 3g radios but thats because the tech is new.. so will it eat more battery idling then 3g? i imagine so
No, while ur 4g is on it pretty much drains the same amount of battery power, my advice is if ur not in a 4g area just b safe and cut it off...but the zzz's aren't really saving power if u wanna save power ull actually have 2 turn 4g off
I'm not an expert on 4G but I *think* the Zzz indicates 4G connected in sleep mode which keeps your mobile IP session up. This in turn gives the spectrum back to the tower you're on to use for active connections. If traffic originates on either side (e.g. from your mobile device or from the internet) the mobile IP session is still active so your device is addressable by IP, traffic can be routed to or from, and the tower base station controller (BSC) allocates some spectrum/RF to your device for the traffic to begin flowing. In theory, the base station controller could allocate multiple WiMax frequency bands if you needed the bandwidth, but that would depend on how the BSC is configured, the load on that specific tower (both on RF and backhaul), and what the demand was like. It would save some battery being in Zzz/sleep, but not as much as turning the 4G radio off entirely when you don't need it.
I'm on Quantum ROM 1.5 which is a Froyo Beta build - I've noticed I have enough battery life with this ROM to turn on 4G on all day if I feel like it, but frankly I'm around WiFi 95% of my day - so I don't bother with 4G unless I really need speed on the move (away from home/work).
shabbypenguin said:
i imagine that the radio for 4g uses more then 3g radios but thats because the tech is new.. so will it eat more battery idling then 3g? i imagine so
Click to expand...
Click to collapse
I think you're right shabbypenguin. CDMA EVDO chipsets have been around for awhile and fairly mature. WiMAX chipsets are available from a few different vendors and haven't been around as long, hence probably not fully optimized for performance and power use/battery life.
OK so I have read different way to save battery power on rooted nexus s but don't know what is best. I am currently using setcpu but can not tell a difference. If anyone has another way please share in great detail because I am new to rooted phones.
Sent from my Nexus S using XDA App
Turning off the mobile data connection will make an enormous difference you won't believe it.
Second is use WiFi when available, it will save tons of battery.
Why does there always have to be a funny guy.
Sent from my Nexus S using XDA App
He's not joking. That IS how you do it.
Sent from my Nexus S using XDA App
Man Im sorry dude read that wrong. I thought he said turn phone off LOL......
Sent from my Nexus S using XDA App
Not so sure about the wifi part. I've compared the phone idling on 3G vs. idling on wifi and with wifi there's definitely more power draw. Confirmed it with System Panel, the CPU is pegged at around 10% usage while idling with wifi vs. about 1% when idling on 3G.
This has been consistent with all my other android phones too (Nexus One, Vibrant, MT4G)
B3arfruit said:
OK so I have read different way to save battery power on rooted nexus s but don't know what is best. I am currently using setcpu but can not tell a difference. If anyone has another way please share in great detail because I am new to rooted phones.
Sent from my Nexus S using XDA App
Click to expand...
Click to collapse
can please post what your setcpu settings are? thx dude!
dinan said:
Not so sure about the wifi part. I've compared the phone idling on 3G vs. idling on wifi and with wifi there's definitely more power draw. Confirmed it with System Panel, the CPU is pegged at around 10% usage while idling with wifi vs. about 1% when idling on 3G.
This has been consistent with all my other android phones too (Nexus One, Vibrant, MT4G)
Click to expand...
Click to collapse
You're right, wifi uses more power than 3G, and they both use more power than 2G. When idling I'd definitely want to sit on 2G if anything. When you actually need an internet connection though, wifi and 3G will be more efficient. They'll use more power but will download much faster to make up for it.
Saving power is the same for almost all android devices:
1) turn off mobile network when not in use
2) turn off wifi when not in use
3) turn off gps
4) turn off automatic syns( if you dont use them)
5) brightness set to low
6) turn off live wallpapers
7) use a black wallpaper
8) turn off haptic feedbacks
9) set screen time out to a smaller interval.
all these steps might help you but it kind of takes away the charm of the phone imho.
dinan said:
Not so sure about the wifi part. I've compared the phone idling on 3G vs. idling on wifi and with wifi there's definitely more power draw. Confirmed it with System Panel, the CPU is pegged at around 10% usage while idling with wifi vs. about 1% when idling on 3G.
This has been consistent with all my other android phones too (Nexus One, Vibrant, MT4G)
Click to expand...
Click to collapse
It's definitely the opposite of that, its counter intuitive but WiFi uses significantly less battery life over 3g. I can post some numbers when I get home tonight if anyone's interested. But a good test is leave your phone on WiFi all night, then repeat on 3g and see the enormous difference. Better yet just look at the official Google specs, web browsing time is always higher on WiFi.
I did some real nice graphing of current draw at 2 second sample rate comparing various tasks which is What I'll try to post later..
What's the best rom for battery life?
Sent from my Nexus S using Tapatalk
robstunner said:
What's the best rom for battery life?
Sent from my Nexus S using Tapatalk
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Click to collapse
Bionix 1.2 @ stock speed, not the OC-ed version
it's stable, fast, and battery good
i have my data on all the time sync-ing every 30min
and 1 battery can last me a full day without plugging it in
Wifi automatically sleeps if your phone is idle for so long, therefore saving battery. 3g absolutely kills my battery so I have mobile data disabled when not using it. Works well for me. Also screen brightness on 0% using an app works good.
Sent from my Nexus S using XDA App
deeren said:
Saving power is the same for almost all android devices:
1) turn off mobile network when not in use
2) turn off wifi when not in use
3) turn off gps
4) turn off automatic syns( if you dont use them)
5) brightness set to low
6) turn off live wallpapers
7) use a black wallpaper
8) turn off haptic feedbacks
9) set screen time out to a smaller interval.
all these steps might help you but it kind of takes away the charm of the phone imho.
Click to expand...
Click to collapse
I agree!!!!!!
AllGamer said:
Bionix 1.2 @ stock speed, not the OC-ed version
it's stable, fast, and battery good
i have my data on all the time sync-ing every 30min
and 1 battery can last me a full day without plugging it in
Click to expand...
Click to collapse
Should you use setcpu with this rom? Or is it better without it
Sent from my Nexus S using XDA App
B3arfruit said:
Should you use setcpu with this rom? Or is it better without it
Sent from my Nexus S using XDA App
Click to expand...
Click to collapse
i tried with and without setCPU, and the difference in power saving was marginal
so i removed it.
it probably gave me an extra hour, but there is a bug with setCPU when picking up calls, it gets staticky until the CPU is at 800 Mhz or more
so with all that i mind, i decided to remove it
leerobson99 said:
Wifi automatically sleeps if your phone is idle for so long, therefore saving battery. 3g absolutely kills my battery so I have mobile data disabled when not using it. Works well for me. Also screen brightness on 0% using an app works good.
Sent from my Nexus S using XDA App
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Click to collapse
True, change the WiFi sleep policy to "never" to avoid this and extra battery savings.
I've been getting the best with CM7 so far, but I think all the roms that are about the same as long as you don't overclock them.
Use a black static wallpaper, low brightness, and get the black-themed MMS and Gmail apps from the Themes/Applications forum.
I can get well through my work day. Usually have 2+ hours of display time on and about 16 hours off the charger by the time I plug in at night with still 20-30% left. Depends on my reception in the day as well, which is pretty bad at work, so I think I'd have 30-35% if my reception at work was good.
deeren said:
Saving power is the same for almost all android devices:
1) turn off mobile network when not in use
2) turn off wifi when not in use
3) turn off gps
4) turn off automatic syns( if you dont use them)
5) brightness set to low
6) turn off live wallpapers
7) use a black wallpaper
8) turn off haptic feedbacks
9) set screen time out to a smaller interval.
all these steps might help you but it kind of takes away the charm of the phone imho.
Click to expand...
Click to collapse
Agreed on all points except for GPS. Since it's an on-demand service, leaving it on makes little to no impact on battery life. The phone only utilizes the GPS connection when an app calls for it and saves you the time of having to toggle it every time you need it. Just leave it on.
RogerPodacter said:
It's definitely the opposite of that, its counter intuitive but WiFi uses significantly less battery life over 3g. I can post some numbers when I get home tonight if anyone's interested. But a good test is leave your phone on WiFi all night, then repeat on 3g and see the enormous difference. Better yet just look at the official Google specs, web browsing time is always higher on WiFi.
I did some real nice graphing of current draw at 2 second sample rate comparing various tasks which is What I'll try to post later..
Click to expand...
Click to collapse
An active WiFi connection uses a lot less than an active 3g connection because the connection already exists and the data transfers faster.
An idle 3g connection uses significantly less energy than an idle WiFi connection. If you aren't using or connected to WiFi, turn it off. Set the WiFi sleep mode to sleep when the screen is off.
I have read some disturbing reviews about the Thunderbolt which is a 4G LTE Verizon phone. Although the phone itself sounds great, what concerns me are reports that the battery life is around 4-5 hours with 4G turned on.
So my question and concern is, once we upgrade the Xoom to 4G when available, are we going to be victims of the same poor battery life with 4G?
You're not required to have data connection on all the time. A toggle switch widget can fix the problem. Just turns it on when needed. But yeah I do agree that 4g and 3g will drain the battery.
Sent from my Nexus One using XDA App
I already keep my Xoom on airplane mode to disable all radios that I don't specifically activate. Seems to help with battery life. I downloaded some toggle Widgets to shortcut all the steps.
[sent with Xooming Android technology]
wang1404 said:
You're not required to have data connection on all the time. A toggle switch widget can fix the problem. Just turns it on when needed. But yeah I do agree that 4g and 3g will drain the battery.
Sent from my Nexus One using XDA App
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Click to collapse
That is not really a solution. Currently with my Xoom, I can be on Wifi at home and when I am out, 3G kicks in. I do not want to toggle a widget when I need data (which is always) as I am sure most other people will not want to do. My battery life is totally acceptable currently with 3G and no toggling on/off. So will the 4G upgrade cause the battery life to be cut in half or worse?
keitht said:
That is not really a solution. Currently with my Xoom, I can be on Wifi at home and when I am out, 3G kicks in. I do not want to toggle a widget when I need data (which is always) as I am sure most other people will not want to do. My battery life is totally acceptable currently with 3G and no toggling on/off. So will the 4G upgrade cause the battery life to be cut in half or worse?
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Click to collapse
I seriously doubt 4g will be much (if any) worse than 3g is now. The only way would be that you are on it more and keeping the screen on for longer times because it will RULE! lol
ghoticov said:
I seriously doubt 4g will be much (if any) worse than 3g is now. The only way would be that you are on it more and keeping the screen on for longer times because it will RULE! lol
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Click to collapse
Just debating here but why do you think that? Why would Thunderbolt have a 4-5 hour battery life using 4G? You think that poor life is not 4G LTE related? And they have the luxury of swapping batteries which we cannot do with the Xoom.
I don't know how closely it is to sprint's 4g, but enabling 4g on my evo is a battery killer too. the good thing is that you can toggle 4g off and run in 3G mode. no need to disable data completely
madsquabbles said:
I don't know how closely it is to sprint's 4g, but enabling 4g on my evo is a battery killer too. the good thing is that you can toggle 4g off and run in 3G mode. no need to disable data completely
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Click to collapse
That begs the question,why get 4g if you have to manage it manually like that?
keitht said:
That begs the question,why get 4g if you have to manage it manually like that?
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Click to collapse
Keep in mind, that the 4g upgrade will be OPTIONAL and if you are seriously debating whether the upgrade will be worth it or not, then simply don't send it in for the upgrade! The less people to send it in (like you), would in turn mean faster return time for my upgrade! I personally don't give a damn about having to click a toggle switch when I want to download at crazy fast speeds!
Just my .02
I can also guarantee you that 4g will have a pretty noticeable impact on battery life. And to be perfectly honest with you, the HTC Thunderbolt (stock), even with 4g turned off, still has absolutely horrible battery life.
Instien said:
Keep in mind, that the 4g upgrade will be OPTIONAL and if you are seriously debating whether the upgrade will be worth it or not, then simply don't send it in for the upgrade! The less people to send it in (like you), would in turn mean faster return time for my upgrade! I personally don't give a damn about having to click a toggle switch when I want to download at crazy fast speeds!
Just my .02
I can also guarantee you that 4g will have a pretty noticeable impact on battery life. And to be perfectly honest with you, the HTC Thunderbolt (stock), even with 4g turned off, still has absolutely horrible battery life.
Click to expand...
Click to collapse
Your response is very defensive and that is not the purpose of my questions. I am looking for meaningful conversation regarding the possibity that a 4g upgrade will significanty reduce battery life on the Xoom. All speculation but something to talk about.
So what I can gather is more or less around what everyone says. Get your 4g upgrade but don't turn it on and stick to 3g unless you feel you need the speed bump. So nothing will change except you know you have your turbo button-widget (yes old school) available.
That is unless it will be stuck on 4g at all times but looks like that is a feature that is toggled by today's hardware not permanent yet due to battery capacities.
Sent from my DROID2 GLOBAL using XDA App
foreverinpanama said:
So what I can gather is more or less around what everyone says. Get your 4g upgrade but don't turn it on and stick to 3g unless you feel you need the speed bump. So nothing will change except you know you have your turbo button-widget (yes old school) available.
That is unless it will be stuck on 4g at all times but looks like that is a feature that is toggled by today's hardware not permanent yet due to battery capacities.
Sent from my DROID2 GLOBAL using XDA App
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Click to collapse
I am not one to complain without reason but I certainly hope this is not the case.
MY plan is to remove the dummy card right before shipping it out so I can put it back if I am unhappy with the battery life.
In theory, 4g should use less battery, not more. 3g chipset firmware is highly optimized, though, due to the technology having been around for a while.
It may be a few firmware revisions to hit minimum use for 4g, but it shouldn't use dramatically more than 3g.
The answer for this thread is simple. Yes 4G will use more battery power, that's the short end of the stick. If you live in a 4G area and don't need the speed boost and would rather save battery there will be a way to disable 4G and use 3G just like with the thunderbolt or evo
Sent from my Evo using Tapatalk
It isn't speculation. The evo has a long track record with 4g of a very similar type. 4g will be a battery hog. But I never use it on my evo unless I'm tethered or streaming. Otherwise I find 3g more than enough for most tasks. I will send my xoom in for the upgrade. But I don't activate it. I tether it to my evo. But yes it will be a battery hog. Whenever you use cutting edge technology they tends to develop the speed and reliability first and worry about power consumption last.
I work for Verizon and honestly rarely hear many complaints about the battery life on the Thunderbolt. Many of my customers get awesome battery life and we have 4g in my area. The LTE radio does consume more battery than 3g especially if you are downloading a large file or something. Another thing to consider is the Thunderbolt is like a big brother to the Incredible and that phone had HORRIBLE battery life. The Thunderbolt has a much larger screen, 4g, and does not have a very large battery. I don't see 4g having a huge impact for most people but for those that feel it helps there will always be a toggle widget or “turbo button” like someone said earlier. I will definitely be sending mine in right away...
Sent from my Xoom using Tapatalk
Ferradinho said:
I work for Verizon and honestly rarely hear many complaints about the battery life on the Thunderbolt. Many of my customers get awesome battery life and we have 4g in my area. The LTE radio does consume more battery than 3g especially if you are downloading a large file or something. Another thing to consider is the Thunderbolt is like a big brother to the Incredible and that phone had HORRIBLE battery life. The Thunderbolt has a much larger screen, 4g, and does not have a very large battery. I don't see 4g having a huge impact for most people but for those that feel it helps there will always be a toggle widget or “turbo button” like someone said earlier. I will definitely be sending mine in right away...
Sent from my Xoom using Tapatalk
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Click to collapse
Sorry but you either live in a nice vacuum or a bubble or a cocoon because EVERYONE I know with this phone (friends, foes and customers too) loves it to death but hates the battery life with 4g on, and by default there's no way to turn off 4g when not needed.
Had to root for some friends and show them the 4g LTE off widget that came out the other day. At least that helps.
As for the Xoom, even if you might not want to use 4g or sign up, still send it in to be done. Definitely will help with resale value down the road.
my friend has the thunderbolt and the battery sucks, and he isn't in a 4g area. Mr verizon rep is on a feel good drug, or something.
keitht said:
I have read some disturbing reviews about the Thunderbolt which is a 4G LTE Verizon phone. Although the phone itself sounds great, what concerns me are reports that the battery life is around 4-5 hours with 4G turned on.
So my question and concern is, once we upgrade the Xoom to 4G when available, are we going to be victims of the same poor battery life with 4G?
Click to expand...
Click to collapse
It's going to drain more then the cdma radio does, at least until the technology and the software support behind it is more mature. But that is to be expected with bleeding technology.
Also remember that part of the battery issues on the TB comes from the fact that people use it alot more then previous phones. Streaming data is alot more power intensive then just the comparable occasional usage their previous device saw. I have a TB and if I use the snot out of it then yeah I can kill the battery in a couple of hours. However if I am busy and use it like I used my D2 or DX then I can get through the day without having to recharge.
Also you can turn just the LTE radio off when you are not using it if you are that concerned
Sent from my Xoom using Tapatalk
Are we likely to see a fix for this? We know there is a problem with 3G drinking battery but how likely are we to see a fix. Solutions like disable 3G aren't viable for a lot of people, so I just wondered what peoples thoughts on this were.
Try changing your modem. You should see a slight improvement in battery life, nothing major but still better than nothing.
Sent from my GT-I9000 using Tapatalk 2
Yeah a modem did help but I still had a big problem. Are we likely to see a fix, I remember this being a problem with ICS which is why I reverted back.
Its not the modem. My phone stock uses the XXKG3 modem, and i have been using that on ICS and now into JB. Jellybean definitely has worse battery concerning 3G / H for some reason. I just barely squeeze a day out of mine.
Yeah, I was struggling to get even a day. I tried almost all of the Jelly Bean ROMs and they all suffered from the same problem. I really wanted to stick with JB, especially C-ROM because it was like a dream to use but on a good day I'd get about 7 or 8 hours maybe? I would always have to plug it in twice a day. Currently trying SauROM which is better but I'm starting to think that the best for battery life is genuinely a stock rom like JVS.
skezza said:
Yeah, I was struggling to get even a day. I tried almost all of the Jelly Bean ROMs and they all suffered from the same problem. I really wanted to stick with JB, especially C-ROM because it was like a dream to use but on a good day I'd get about 7 or 8 hours maybe? I would always have to plug it in twice a day. Currently trying SauROM which is better but I'm starting to think that the best for battery life is genuinely a stock rom like JVS.
Click to expand...
Click to collapse
with any rom I've got a day and 6 hours depends on usage
On Jelly Bean?
did you limited your speed to 3g or do you also use hsdpa? if you use hsdpa, give 3g a try i think the battery drain in 3g is a lot lower ... in my opinion if you are not downloading 3g is fast enough to browse or youtube.
for just instant messaging you can give 2g a try
2G isn't really usable on Three mobile.
I don't know how to limit to just 3G. But yes I normally use HSPDA. That said, we should be able to use it without draining our battery
I'm not getting any major battery drain here. I can last a full day on HSDPA and or WiFi.
Sent from my GT-I9000 using xda premium
Really?
skezza said:
Really?
Click to expand...
Click to collapse
Yup
Sent from my GT-I9000 using xda premium
if you will buy a strong battery 1800-1900 mAh, you will see the different
Yeah, that's the alternative. Bigger battery I guess.
skezza said:
2G isn't really usable on Three mobile.
I don't know how to limit to just 3G. But yes I normally use HSPDA. That said, we should be able to use it without draining our battery
Click to expand...
Click to collapse
You CAN limit to just 3G. You have to go to Advanced Settings or Galaxy S Settings (depends on a ROM) and go to HSDPA and put it to UMTS mode only. It'll switch it to 3G and will consume less battery
Sent from my GT-I9000
Helloworld294 said:
You CAN limit to just 3G. You have to go to Advanced Settings or Galaxy S Settings (depends on a ROM) and go to HSDPA and put it to UMTS mode only. It'll switch it to 3G and will consume less battery
Sent from my GT-I9000
Click to expand...
Click to collapse
in my opinion, thats the point, go to settings/advanced/RADIO in your case hsdpa + hsupa should be ticket, simply tick umts an you should notice, the changing radio icon in the status bar (no longer h, but 3g).
your 3g and hspa power consumption depends really strong from the signal strenght and in your phone is connected constantly or changes often. bad reception causes a large waist of battery power.
My guess is you have Google Now / Maps running in background which always uses your data.
darristan said:
My guess is you have Google Now / Maps running in background which always uses your data.
Click to expand...
Click to collapse
On slim 2.9, I found that removing G now, and turning off all location tracking increased battery life. Now I can get a day and about an hour/90mins of screen on time with data/wifi only on when using it. I suppose after more than 2 years of use on the one battery charging every day or more, there's only so much one can expect from a device and battery.
But isn't it recognized that this is a problem? The 3G Bug? Nothing to do with Google Now etc
theskymoves said:
Now I can get a day and about an hour/90mins of screen on time with data/wifi only on when using it. I suppose after more than 2 years of use on the one battery charging every day or more, there's only so much one can expect from a device and battery.
Click to expand...
Click to collapse
in my opinion thats not enough, do you mean 24 hours or 16 hours? could be a little more with 90 mins of screen time, but you shouldnt need more.
inverted apps can by the way help too, avoid white and light colours as background
I just had the first full day with the phone out of the house. I find it pretty underwhelming. Does this seem about right?
http://imgur.com/a/lXddP
sacredsoul said:
I just had the first full day with the phone out of the house. I find it pretty underwhelming. Does this seem about right?
http://imgur.com/a/lXddP
Click to expand...
Click to collapse
It really depends on how you're using the device, what kind of signal you have, what kind of data connection you have (3G/LTE), whether you keep your data connection on while using WiFi, your geographical location, so many factors. In saying that though, that's less than what I typically get and I live in a black hole for phone reception.
Heisenberg said:
It really depends on how you're using the device, what kind of signal you have, what kind of data connection you have (3G/LTE), whether you keep your data connection on while using WiFi, your geographical location, so many factors. In saying that though, that's less than what I typically get and I live in a black hole for phone reception.
Click to expand...
Click to collapse
Thank you for the reply. I used the phone mostly for whatsapp texting and surfing via chrome. I use LTE and the signal strength is always good in this tiny island of ours. Will install BetterBatteryStats to see if there's anything particularly causing drain.
Here the main active battery thread with a lot of info etc.
http://forum.xda-developers.com/nexus-6p/general/nexus-6p-expected-battery-life-t3219700
sacredsoul said:
Thank you for the reply. I used the phone mostly for whatsapp texting and surfing via chrome. I use LTE and the signal strength is always good in this tiny island of ours. Will install BetterBatteryStats to see if there's anything particularly causing drain.
Click to expand...
Click to collapse
this is weird.
on LTE usage, I can get AT LEAST 5 hours of SOT. Sometimes, i am able to get near 6 hours of SOT.
mousefai0922 said:
this is weird.
on LTE usage, I can get AT LEAST 5 hours of SOT. Sometimes, i am able to get near 6 hours of SOT.
Click to expand...
Click to collapse
My NFC was on by default. Maybe that was the issue. I've no made sure NFC, bluetooth is switched off. The battery was getting down almost 1% per minute.
sacredsoul said:
My NFC was on by default. Maybe that was the issue. I've no made sure NFC, bluetooth is switched off. The battery was getting down almost 1% per minute.
Click to expand...
Click to collapse
dont think enabling nfc and bluetooth makes a huge differences.
maybe try greenify those useless apps