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Battery life is bad because of the radio

I'm on the EagleBlood Rom and currently in Singapore. Becsause I'm not using T-Mobiles expensive service and WLAN is here everywhere I have used the phone with WLAN + GPS only (Airplane mode + manual turned on WLAN + GPS). I used Locus Pro extensivly to navigate through the city and record my track. Battery after first day 8:00AM til 9:00PM was 79%. Second day is 55%.
Therefore the Cell Standby is really the issue here I would asume. But hack what do I have a cell phone for if I can't turn on the radio???
Battery really sucks otherwise. When I go to work at 07:30am and come home at 4:30PM I can put the phone on the charger, even though I barly used it.

I'm in the states, this phone lasts from about 7:30 AM until 8:00 PM with no problem, regular use, 4G all day. I disabled the Wifi which helped a lot.

Wifi uses less battery due to not having to poll the network to renew the connection. Wifi calling uses even less battery because now you have no connection to the network and it can keep a static connection to the wifi network. No need to renew that connection so it just sits there and does nothing.
I've tested and confirmed this on more than one phone.
And of course the radio is using battery. It's second only to the display in battery use. Like you said, what good is a cell phone without having the radio enabled?

iamlilysdad said:
Wifi uses less battery due to not having to poll the network to renew the connection. Wifi calling uses even less battery because now you have no connection to the network and it can keep a static connection to the wifi network. No need to renew that connection so it just sits there and does nothing.
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This all true. Display and 3G/4G radio are the killers.

Unless you have wifi on and aren't connected to a network. Then your phone is polling for wifi connections in addition to 4G

Yay! Yet another battery thread that I get to comment on!
i use wifi/wifi-calling over 95% of the time and my battery rocks! The moment I turn it off... bam.... I get crappy life on a batter. the difference is from around 35hr and drops to around 20. Then if i had moderate to heavy use on it, I'm sure I'd be getting the 8hrs everyone is complaining about.
I like cheese

hire4blood said:
I'm on the EagleBlood Rom and currently in Singapore. Becsause I'm not using T-Mobiles expensive service and WLAN is here everywhere I have used the phone with WLAN + GPS only (Airplane mode + manual turned on WLAN + GPS). I used Locus Pro extensivly to navigate through the city and record my track. Battery after first day 8:00AM til 9:00PM was 79%. Second day is 55%.
Therefore the Cell Standby is really the issue here I would asume. But hack what do I have a cell phone for if I can't turn on the radio???
Battery really sucks otherwise. When I go to work at 07:30am and come home at 4:30PM I can put the phone on the charger, even though I barly used it.
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I'm going to Hong Kong this Sunday, then will be in Singapore by the end of next Wednesday. I'm thinking to buy a local sim and use 2g only with manual WLAN, GPS off.

Agreed. I'm running CM7 #9. Took the phone off the charger at 8am. Checked my push exchange, twitter, and facebook updates. Went into work where we have no service. I have WiFi turned on for data.
I still have the cellular radio on, btw. At 3pm I have 88%.
CM7 has a WiFi bug which the WiFi won't stay on (goes to sleep with the screen off). But still pretty good.

it has been proved that 4g kills battery faster then 3g and 2g. http://blog.lifehacker.com/5741627/why-you-might-want-to-wait-for-a-4g-phone until there is a way for 4g radios to manage data more efficiently 4g is gonna kill you battery.

I'm using Eagle Blood 1.03 and my battery life is awesome right now. I think at this point, I could do a couple days before running out. I am just speculating right now, but I will try to leave off the charger tonight to see what I can get out of it.

cervantesjc said:
it has been proved that 4g kills battery faster then 3g and 2g. http://blog.lifehacker.com/5741627/why-you-might-want-to-wait-for-a-4g-phone until there is a way for 4g radios to manage data more efficiently 4g is gonna kill you battery.
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If you saying only 4G I cannot share the expirience with you. I even turned of data completly, while I was still in the US and still got bad battery life with ONLY the radio turned on (WLAN + Data + GPS turned off)

jdaclutch said:
I'm going to Hong Kong this Sunday, then will be in Singapore by the end of next Wednesday. I'm thinking to buy a local sim and use 2g only with manual WLAN, GPS off.
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Hong Kong Airport has free WLAN. Singapore has free wirless LAN called [email protected] through the whole downtown area. But there is a catch you have to have a Singapore Mobile number to register. They will send you the UserID and Password via text message. Lucky me I have a friend here sharing his user ID with me ... Therefore no need for the Radio to be turned on at all. And like I said the battery now last forever...

hire4blood said:
If you saying only 4G I cannot share the expirience with you. I even turned of data completly, while I was still in the US and still got bad battery life with ONLY the radio turned on (WLAN + Data + GPS turned off)
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Ok let me see if i understand (not trying to be a **** here), if all of the phone functions are turned off, what were you doing?, playing games?, watching videos?, i don't know, because to me it sounds like you phone was idle.
One more example that 4g kills battery is the thunderbolt, if you think that the G2x kills battery you should use that phone and comeback to the G2x, even HTC is selling bigger batteries for thunderbolt because customers are *****ing about the battery life.
You should try and use 2g only and see if this helps you battery life a little, i guess im just lucky, i have no screen bleed, no reboots and battery life for me is awesome, whit and without 4g.

cervantesjc said:
Ok let me see if i understand (not trying to be a **** here), if all of the phone functions are turned off, what were you doing?, playing games?, watching videos?, i don't know, because to me it sounds like you phone was idle.
One more example that 4g kills battery is the thunderbolt, if you think that the G2x kills battery you should use that phone and comeback to the G2x, even HTC is selling bigger batteries for thunderbolt because customers are *****ing about the battery life.
You should try and use 2g only and see if this helps you battery life a little, i guess im just lucky, i have no screen bleed, no reboots and battery life for me is awesome, whit and without 4g.
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Dude all the functions are turned on except the radio. I use the phone in airplane mode with WLAN + GPS enabled. I use GPS apps to track my way to Singapore. In downtown they have free WLAN everywhere. Phone last for 2 days this way, but makes no sence of course having a phone without a radio...

Oh and I use Sipdroid with Sipgate to receive and do free phone calls

cervantesjc said:
it has been proved that 4g kills battery faster then 3g and 2g. http://blog.lifehacker.com/5741627/why-you-might-want-to-wait-for-a-4g-phone until there is a way for 4g radios to manage data more efficiently 4g is gonna kill you battery.
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Just making sure here, but you know that T-Mobile's 4G is still using the same existing 3G connections, thus not requiring it to run on a different band, right? HSPA/HSPA+ connections share the same bands, and thus the "4G" connection is running through the same radio without affecting battery life. WiMAX and LTE operate differently and both run seperate from the EVDO that Verizon and Sprint use for their 3G.
That being said, a radio, regardless, will always drain the battery faster than anything, which is why Wifi Calling is so effective in keeping high battery life.
The other HSPA+ enabled phones on T-Mobile are getting fantastic battery life, as long as you aren't constantly using the displays.
I am leaning to believe that's a major reason why everyone's phones are dying so fast. They've got a new toy so they're always playing with it and killing it quickly. I've done that with every new phone I've gotten. My G1, the Cliq, the myTouch Slide, and now this. Give it a few days and when you're not turning the screen on every five seconds to just flick around the menus, and you'll see your life improve.
Yesterday, for example, I ran my phone off of charge from 11 AM EST until 6 AM EST (6 AM, Monday Morning). This was with moderate use.

Its not just that we're playing with our new toys. This phone most definitely drains battery like its going out of style. I had to drive 90 minutes to the client I was coming to work with today. I unplugged my phone when I left my hotel room (and it was at 100%) and when I got to the office, 2hours and 15 minutes later, having never turned my phone on since I was driving the whole time, my phone was at 82%. That's really bad for a phone idling. I think there's a radio bug or its polling too often because if I let JuiceDefender work, then in the same period of time this evening I was at 94% battery. That's a big difference.

hire4blood said:
Hong Kong Airport has free WLAN. Singapore has free wirless LAN called [email protected] through the whole downtown area. But there is a catch you have to have a Singapore Mobile number to register. They will send you the UserID and Password via text message. Lucky me I have a friend here sharing his user ID with me ... Therefore no need for the Radio to be turned on at all. And like I said the battery now last forever...
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I know HK airport has free WLAN, but places like starbucks/Mcd only offer 30 mins- 2 hours of free WLAN a day.I will be in HK for a month(after I got back from Singapore), so I might need to purchase a pre-paid internet plan..I will be in Singapore for a week, so hopefully they will have unlimited free WLAN there...

IT'S NOT 4G THAT'S KILLING BATTERY. As was stated above it uses the existing 3G network for faster data speeds. Phones like the Thunderbolt and EVO (and anything else that connects to WIMAX or LTE) need a completely separate radio (and thus controller) to connect to 4G.
HSPA+ is just really fast 3G so the existing SOC's that have support on-die for T-Mobile 3G frequencies just have to have a slightly updated version of the hardware (to support either class 10 or class 14 HSPA+).
This would be a perfect example as to why T-Mobile and AT&T shouldn't be able to market HSPA+ as 4G. It confuses people and makes them think that battery life will suck because of it like it does on Sprint and Verizon. When SOC's come out that have on die support for LTE and WIMAX (I think I heard 2012) then battery life for those phones won't suck anymore.

xenoletum said:
Just making sure here, but you know that T-Mobile's 4G is still using the same existing 3G connections, thus not requiring it to run on a different band, right? HSPA/HSPA+ connections share the same bands, and thus the "4G" connection is running through the same radio without affecting battery life. WiMAX and LTE operate differently and both run seperate from the EVDO that Verizon and Sprint use for their 3G.
That being said, a radio, regardless, will always drain the battery faster than anything, which is why Wifi Calling is so effective in keeping high battery life.
The other HSPA+ enabled phones on T-Mobile are getting fantastic battery life, as long as you aren't constantly using the displays.
I am leaning to believe that's a major reason why everyone's phones are dying so fast. They've got a new toy so they're always playing with it and killing it quickly. I've done that with every new phone I've gotten. My G1, the Cliq, the myTouch Slide, and now this. Give it a few days and when you're not turning the screen on every five seconds to just flick around the menus, and you'll see your life improve.
Yesterday, for example, I ran my phone off of charge from 11 AM EST until 6 AM EST (6 AM, Monday Morning). This was with moderate use.
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The antena-radio, is using more battery, just because is handling data at a higher rate.
Just like I said before, until there is a way or update to the radio to handle data more efficiently, 4g radio is gonna keep draining battery.
And yes hspa+ and wimax are similar yet incompatible technologies, but the way they handle data take a big chunk out of you battery.
And is a fact that radio is draining most of the battery, and until we get a radio update, battery is gonna drain fast.
Sent from my LG-P999 using XDA App

Lte vs 3g battery life

Will the phone have a longer battery life if the cell modem is set to 3g vs lte?
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Yes, in my experience with the S4 it's a pretty big difference UNLESS you get a very strong LTE signal. I'm on tmobile and now have the N5 and use the 3G setting which is HSPA/+ Plenty fast for me for what I do. When I want some extra speed I'll kick on the LTE

Does anyone have a more detailed answer for this? I just got this phone yesterday so I haven't been able to find out myself yet, just with 5hour battery life from 100% to 4% on what will only be half of its normal day I'm looking for anything to help right now till I get a battery case. This phone is one of only two to have a LTE radio that is supposed to use 30% less power than usual so I'm wondering if that makes it as efficient if not more than 3G for idle in your pocket to light stuff like FlipBoard.

it would depend on the quality of the data connection. im in brooklyn nyc, and use lte on my nexus 5 exclusively, used to use it on my nexus 4 as well. with 3g(hspa+), on both my n5 and n4, i average about 4-4.5 hours screen on time. when using lte, i average about 5-6 hours screen on time on both my nexus 5 and 4. after noticing this difference, i use exclusively lte on both my devices, as i average an hour more screen on time when using exclusively lte.

herqulees said:
Does anyone have a more detailed answer for this? I just got this phone yesterday so I haven't been able to find out myself yet, just with 5hour battery life from 100% to 4% on what will only be half of its normal day I'm looking for anything to help right now till I get a battery case. This phone is one of only two to have a LTE radio that is supposed to use 30% less power than usual so I'm wondering if that makes it as efficient if not more than 3G for idle in your pocket to light stuff like FlipBoard.
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Serious battery drain can have many reasons. One is having LTE on, syncing on(if you just booted it up, and input your Google account and let all your apps sync and download, its gonna drain your battery fast the first time), having locations on and wifi enabled. If you are in an area with poor reception, your phone will drain more trying to find connection.
Sent from a potato

simms22 said:
it would depend on the quality of the data connection. im in brooklyn nyc, and use lte on my nexus 5 exclusively, used to use it on my nexus 4 as well. with 3g(hspa+), on both my n5 and n4, i average about 4-4.5 hours screen on time. when using lte, i average about 5-6 hours screen on time on both my nexus 5 and 4. after noticing this difference, i use exclusively lte on both my devices, as i average an hour more screen on time when using exclusively lte.
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Thanks for the information. That's what I was wondering but I couldn't find anyone that had already tested this with these new radios. If I get the time this weekend maybe I'll do my own test in detail to compare LTE to 3G. Am thinking of using a TV episode on Netflix and see which makes the battery drop faster over the 30 or so minutes.
Slightly off topic, does anyone's WiFi show as always on in the battery monitor even if its been off? Still trying to figure out my battery drain issue, if it even is an issue with just me, I bought this phone knowing it had a small battery.

herqulees said:
Thanks for the information. That's what I was wondering but I couldn't find anyone that had already tested this with these new radios. If I get the time this weekend maybe I'll do my own test in detail to compare LTE to 3G. Am thinking of using a TV episode on Netflix and see which makes the battery drop faster over the 30 or so minutes.
Slightly off topic, does anyone's WiFi show as always on in the battery monitor even if its been off? Still trying to figure out my battery drain issue, if it even is an issue with just me, I bought this phone knowing it had a small battery.
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go to the main phone settings, wifi, 3 dots on the bottom right, advanced, then disable scanning always available..
ill be interested in seeing your results

simms22 said:
go to the main phone settings, wifi, 3 dots on the bottom right, advanced, then disable scanning always available..
ill be interested in seeing your results
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Seems that's a whole other debate on weather leaving that on or turning it off helps battery life. Apparently if you turn it off then apps that want your location will turn the GPS on and waste battery (looking at you Facebook...), but if you leave it on the phone just tells the app your location from WiFi networks around you.
One thing I didn't think about is I had added my work WiFi yesterday but it wouldn't connect to it, wouldn't tell me why but I'm assuming it's because of bad signal as I'm a valet outside and the WiFi is from a bar across the street so I forgot about it but WiFi was left on with that network saved, my Nexus 7 can connect to it on most days and any laptop has no issues but with this being a phone I guess it doesn't have a big enough antenna. So I'm wondering if now that I deleted that WiFi network, and I always have my phone set to not notify me of public networks, if my battery won't die so fast today.
And now I'm just rambling but I just looked at my screenshot I took yesterday of battery use before plugging in at 4% and WiFi isn't even being shown on top six things that used the battery, lowest one being shown is a Chrome process using 3%.
EDIT: Well off to work now with my phone 100% charged, will have screen 100% (am outside in the sun), BT off, WiFi on (disconnected, no saved networks nearby, open network notifications off, always on during sleep, scanning always available, avoid poor connections, and WiFi optimization), LTE on/connected, NFC off. So lets see how things go. It will have tons of screen on time as all I do at work is read through FlipBoard, then if I run out of things on there I move to FB. Lets see how this goes...

http://www.qualcomm.com/media/docum...envelope-tracking-technology-3g4g-lte-devices
Nexus 5 has it and its doing its job saving battery

Sorry for digging up such an old thread, but with LTE my Nexus 6P, it switches between HSPA and 3G. When turned to 3G, nothing changes. Would that mean I would save battery?
Sent from my Nexus 6P using Tapatalk

[Q] Better LTE management - read on!

I've had this thought for a while, but haven't found any practical way of implementing it, perhaps having it out to the broader public may help.
LTE or 4G, as we all know, is fast and great, but it also demands more on our batter than good old 3G.
These are some of the scenarios in which I would love an app, or OS be able to make smarter decisions about the network.
1. When connected to WiFi - When connected to WiFi, our battery life improves when compared to 3G or 4G, but I find sometimes that even though I'm connected to WiFi, my cell network is still connected to 4G (at home, my 3G signal is full bars, but 4G is 3/5), thus, wasting a bit of battery.
2. When phone is in low data use state, or lengthy sleep - Often, when I'm in the office for example, my phone sits there in standby for hours at a time (my emails come onto PC, plus I wear a moto360 so i check notifications there). In these modes, LTE is of little use for me, yet it can often spend hours in LTE standby.
I've looked into IFTTT, and messed with other software apps, but I always end up with the same conclusion, that is, this would have to be manually done...
does anyone know a way?

If you have a root you can do with with xposed and gavitybox (smart radio). I think some other modules can do it as well.

sephstyler said:
I've had this thought for a while, but haven't found any practical way of implementing it, perhaps having it out to the broader public may help.
LTE or 4G, as we all know, is fast and great, but it also demands more on our batter than good old 3G.
These are some of the scenarios in which I would love an app, or OS be able to make smarter decisions about the network.
1. When connected to WiFi - When connected to WiFi, our battery life improves when compared to 3G or 4G, but I find sometimes that even though I'm connected to WiFi, my cell network is still connected to 4G (at home, my 3G signal is full bars, but 4G is 3/5), thus, wasting a bit of battery.
2. When phone is in low data use state, or lengthy sleep - Often, when I'm in the office for example, my phone sits there in standby for hours at a time (my emails come onto PC, plus I wear a moto360 so i check notifications there). In these modes, LTE is of little use for me, yet it can often spend hours in LTE standby.
I've looked into IFTTT, and messed with other software apps, but I always end up with the same conclusion, that is, this would have to be manually done...
does anyone know a way?
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Let me guess, not on Telstra. Battery life on mine with Telstra is superb, even with 1-2 bar signal. I guess that would be because it is a stable 1-2 bar, unlike the issues I had previously with Optus, were my phone would drop signal very often in built up areas

danw_oz said:
Let me guess, not on Telstra. Battery life on mine with Telstra is superb, even with 1-2 bar signal. I guess that would be because it is a stable 1-2 bar, unlike the issues I had previously with Optus, were my phone would drop signal very often in built up areas
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Yes, not on Telstra, but that is besides the point here. This is not an AU specific thing. I travel internationally a lot for work, and this would be the same when I'm overseas. In fact, not complaining about battery life at all, just think that the way the phone manages its connections could be improved - this is not a problem on the Sony, but on most phones.

se1000 said:
If you have a root you can do with with xposed and gavitybox (smart radio). I think some other modules can do it as well.
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Good tip. Not rooted, not intending to.

Samsung Gear S2 3g Battery Life

Hi,
I'm trying to figure out what options would keep my battery life up on the s2 3g.
I've had the watch for a couple days now and I'm trying to figure out which features drain the most battery.
I would like to keep 3g on (but it's not really necessary when sitting at my desk all day), bluetooth, and always on. I don't mind keeping the screen at a brightness of 3, and my watch face is a dark background, I have 6 apps selected for notifications.
I do not have gps, or wifi on.
I guess what would be helpful is basically a list of the most battery draining items on the watch. It would also be great to have a battery management app (for the developers out there) that could quickly turn on/off certain items. Right now there's a battery saving mode, a do not disturb mode, and airplane mode... these are all in different locations, but I guess it wouldn't hurt to have some more quick control over all these types of items and additional ones to just manage all the battery draining items, like the pedometer and other "ometers"... is there a way to turn those items off?
Overall I love the watch, but it would be nice to not be thinking about the battery so much... and just use it.

I'm wondering the same thing. Turned it on at around 6am, have brightness set to 1. Haven't used it that much. Wake up gesture is on but not screen always on. I'm at 30% at 2:41pm....with my gear s I was able to get through a 6am-9/10pm day on auto brightness and still have a little battery left (that included a 2 mile walk in the morning using some health exercise with gear s.) I haven't even used the exercise option in this (other than the pedometer) because I'm afraid it will drain the battery.
I love everything else about the s2 though

I'm suppose to get mine this week and battery is my biggest concern. I plan to use this to run for up to 2.5 hours and play mp3's. I might cancel based on what you 2 are saying.

I do have nfc on, 3g on auto switch, and WiFi set to on (only switches on if I walk out of bt range) I did get a lot of espn notifications, texts, email...but not any more than I did on the gear S. I have the screen set to stay dark and not turn on for notifications. With my gear S I had the screen set to turn on full screen with every notification. I'm going to try tomorrow with nfc, 3g, and WiFi off....but, I shouldn't have to do that...I should be able to use all those, if needed, and still be able to get the 14-16 hours+ that I was getting with my Gear S. Like I said, I do really love everything else about it!

Try a restart
I had a terrible first day, with the Watch dying after 8 hours. I suspected that some of the app installs were having and draining it so I restarted both phone and watch.. The next day, I got 15 hours and still had 40 percent left. I have NFC and wifi turned off, network to autoswitch (with me leaving phone home and relying on 3g for 2 hours), turned off "always on" screen (because the wake gesture is SO much more accurate than with Gear S), and a white watchfacer with brightness set to 7. Very happy so far. Suggest restarting watch and phone after Gear app installs or updates

Thanks! I'll try that. Is your location/gps set to off? I also had s voice set to a voice commands and have now turned that off. Is a white watchface or black more draining? (I would assume white would drain the battery more)

I think the NFC, GPS, Always on being turned off have been a huge help with the battery life, and I understand why those things would drain a battery, but it would be nice to be able to have everything turned on and at least get a day's use.
In general I assume the first day you get the watch it his heavily impacted by the app downloads... I let it drain to zero and then fully to 100%... I also stopped playing with it every ten seconds. BUT as I mentioned earlier, this should be usable for a day minimum with normal usage. If Samsung has a "normal" usage setting in mind that will allow for a day (or the 2 days advertised for the 3g version), there should literally be an option in settings called "normal usage" that should get you the 2 days.

diamondjon said:
I think the NFC, GPS, Always on being turned off have been a huge help with the battery life, and I understand why those things would drain a battery, but it would be nice to be able to have everything turned on and at least get a day's use.
In general I assume the first day you get the watch it his heavily impacted by the app downloads... I let it drain to zero and then fully to 100%... I also stopped playing with it every ten seconds. BUT as I mentioned earlier, this should be usable for a day minimum with normal usage. If Samsung has a "normal" usage setting in mind that will allow for a day (or the 2 days advertised for the 3g version), there should literally be an option in settings called "normal usage" that should get you the 2 days.
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Click to collapse
I absolutely agree! I was able to get 14-16 hour day (with some left) on my gear s, with all the options that I wanted turned on. This this new and improved device should, at a minimum, give me comparable battery life! I'm also having an issue with the activity tracker telling me I'm doing light activity when I'm sitting on the couch watching TV....that is definitely not light activity.

AmyMejlak said:
I absolutely agree! I was able to get 14-16 hour day (with some left) on my gear s, with all the options that I wanted turned on. This this new and improved device should, at a minimum, give me comparable battery life! I'm also having an issue with the activity tracker telling me I'm doing light activity when I'm sitting on the couch watching TV....that is definitely not light activity.
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Maybe in Korea "light activity" means "couch potato"?
Yea, we'll see what happens with future updates. One of the big draws to this watch (aside from all the other enticing factors) was the battery life... I guess time will tell.

Use close all apps feature on gear s2 3g to save battery life

Dhern said:
Use close all apps feature on gear s2 3g to save battery life
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How does one get to this 'close all apps' feature?

Go to Apps and select blue circle. I think, it is last opened apps. There You can select Close all.
Odoslané z SM-N910C pomocou Tapatalku

Was also curious about everyones setup.
First 2 days i didnt take into account battery because i was playing with it alot.
Today, booted watch at 7am, booted, got on, checked in 15 minutes, and was from 100-69%
Current setup,
display at 3%
about 10 apps that alert,
S Health
3G/4G is at auto
GPS-off
NFC-off
WiFi-off
i did have a Power Ranger face(which i loved) but it had alot livewallpaper action, blinking lights, and pieces that moved etc, changed to the default one with the stars in background with digial.
i am currently at 33% from 7 1/2 hours of usage
no music, have not taken any calls, havent responded to any messages, literally looked and swiped away.
Would a rooted Sam N4 have any effect on the performance of the watch?
I was on stock, but was horrible after the lolipop update.
Still on stock ROM, just rooted and bloatware removed, nothing special.

Ok, good thing there is a thread on this already.
So first day I didn't take battery into consideration, because you always fiddle with it too much. Then I had to work for two days, and my job is heavy construction, so I don't bring my watch, I left it on the charger for two days straight. I put it on Friday night, and didn't charge it till Saturday night. Today (Sunday) I was at 15% by about 12pm, and I took it out of the charger by 9am. This doesn't seem right. Did leaving it on the charger for too long mess up my battery? What is going on here?
Sent from my SM-N920T using Tapatalk

Were you on just 3g...instead of bt? My battery life has improved with turning a lot of the options (wifi, nfc, heartrate monitoring) off. If I'm on 3g it is a whole different story....accidentally left my phone home the other night and was remotely connected between watch and phone....dropped down 40% in less than two hours. Has anyone else had a similar issue?

I don't have the 3g model, I have the classic. Yesterday it was good for the whole day, but to be honest I didn't check the battery when I took it off the charger this morning. I went to bed at 2am,so maybe between 2 am and 9 am it didn't have time to fully charge?
Sent from my SM-N920T using Tapatalk

I think the variant of the 3g gear s2 and your network is key for battery life.
I have a tmobile carrier gear s2 and the battery life for the first two days was at about 18 hours off the charger each day and ending up with 15% at the end of each day before charging.
Mind you this is with 3 email accounts getting maybe 10 emails per hour, Answering texts and even taking a call or two on the watch, and also controlling my spotify for my note.
The tmobile watch has auto on/off 3g for when you disconnect from bluetooth or WiFi to your phone. I've heard that not all gear s2's have the auto on/off 3g feature?
Overall highly satisfied. But just turn off what you don't need when you don't use it has always been the name of the game when it comes to any mobile battery life. Nfc doesn't need to be on if you don't use samsung pay consistently. Neither does WiFi. Bluetooth and or 3g should be all anyone really every needs for true daily usage imo
Sent from my SM-N910T using Tapatalk

I agree. I have had the 3g version since 2 days after its launch on T-Mobile. I had a white one and returned it b/c I was convinced something was wrong with the watch. I got a second one (black one) two weeks later and have the same issue. If I turn off all of the functions I wanted the watch for -- i.e., 3g, Wifi, NFC -- I can get a day of use. This is really disappointing b/c I have the classic as well, and it lasts twice as long with the same amount of activity. I hope Samsung does not something to extend the battery life on the 3g version.

I also have the Tmobile Gear S2 and on the first full day, I only got about 10 hours of battery life with very little use using all of the watch defaults. On day 2, I opted to turn off wifi and the cell radio and now I have great battery life. In excess of 17 hours if not more. On day 3 I decided to turn on wifi and bluetooth only. Battery life is still fantastic, once again in excess of 17 hours if not more. Next test will be all three radios on again, then just the cell radio only.
Hope this helps,
GP

What are you guys doing with your watches that you need 3g and wifi on all the time? I have mine setup with bluetooth on and 3g auto with wifi, gps, and NFC turned off. I also have the heart rate monitor turned on and set to take my heart rate as often as it will. I have screen on all day and display is at 3. I can make it a full day (630a - 10p) and still have about 40% left. I basically use mine while at work to check notifications so I'm not constantly picking up my phone just to clear a twitter notification. I know they made it so that you can use these for content consumption, but I don't think it was ever meant to be it's primary function, that's what the $700 cell phone in my pocket or the 400 tablet in my backpack is for. That being said, if you wanted to use it for a run and listen to music, do it. Just know that you may need to throw it on the charger later on when you are relaxing on the couch. To me, a full days use on any device is fair, but that's just my 2c.

Verizon battery optimization update....anyone received it?

I see that tmo and att people are getting the small battery optimization update. I'm Verizon and haven't gotten the update; has anyone on Verizon gotten it? I really want to get this update.

On Verizon. Have not gotten the update. But if I don't soon, then I am returning this thing - the battery was ok on day 1, but it only seems to have gotten worse the more I use it.
Maybe I have high expectations, but if I pull the watch off the charger at 7:00AM to go to work, use it moderately for notifications and maybe a 3G call or two, then home by 5:30PM, turn on GPS and go for a jog, the battery is dead by 6:30PM in the middle of my run! If that's what I can expect... then this watch serves no purpose for me.
I should be able to actually USE the watch somewhat during the day, and have juice left when I get home. I would be fine if, after a day of moderate use including a 1-2 mile GPS run, the battery was ready to die by 10-11PM. But 6?? C'mon...

I haven't gotten one either but my software version is R730VVRU1AOJ6. I assume yours is the same. From the software versions that people have on other versions on the S2:
Gear S2(SM-R720):
R720XXU2AOJ3 (Current NA)
Gear S2 (3G):
R730VVRU1AOJ6 (Current Verizon [SM-R730V] NA)
R730AUCU1AOL3 (Current ATT [SM-R730A] NA)
XXXXXXXXXXXX (Current Tmobile [SM-R730t] NA)
Gear S2 Classic(SM-R732):
R732XXU2AOJ3(Current NA)
R732XXU2BOL3(Current South Korea)
Credit: gsk3rd
I see the others have a 3 at the end of their versions but ours has a 6. Maybe we got the update already? Not sure, but if we did not receive it yet it's something we can expect from Verizon.... *Cough, cough* *Note 4 still didn't receive 5.1.1. update.* No love.
---------- Post added at 09:38 AM ---------- Previous post was at 09:24 AM ----------
thejdoe said:
On Verizon. Have not gotten the update. But if I don't soon, then I am returning this thing - the battery was ok on day 1, but it only seems to have gotten worse the more I use it.
Maybe I have high expectations, but if I pull the watch off the charger at 7:00AM to go to work, use it moderately for notifications and maybe a 3G call or two, then home by 5:30PM, turn on GPS and go for a jog, the battery is dead by 6:30PM in the middle of my run! If that's what I can expect... then this watch serves no purpose for me.
I should be able to actually USE the watch somewhat during the day, and have juice left when I get home. I would be fine if, after a day of moderate use including a 1-2 mile GPS run, the battery was ready to die by 10-11PM. But 6?? C'mon...
Click to expand...
Click to collapse
I hear you on the poor battery life on my first two days. I never use 3G because it was never activated, so I have everything turned off except the Bluetooth connection to connect to my phone. I did a factory reset on it and I noticed a better battery life. The watch actually did not die that day with light to moderate use. I made a couple of quick calls, responded to some texts, and messed a little with Mr. Time Maker app and it was 22% this morning. I'm bringing this one back today for a replacement because the bezel is loose/flimsy.

I have the same version. If what you say is true about Verizon and updates... then I'll be returning this watch. Not worth the price tag.

thejdoe said:
On Verizon. Have not gotten the update. But if I don't soon, then I am returning this thing - the battery was ok on day 1, but it only seems to have gotten worse the more I use it.
Maybe I have high expectations, but if I pull the watch off the charger at 7:00AM to go to work, use it moderately for notifications and maybe a 3G call or two, then home by 5:30PM, turn on GPS and go for a jog, the battery is dead by 6:30PM in the middle of my run! If that's what I can expect... then this watch serves no purpose for me.
I should be able to actually USE the watch somewhat during the day, and have juice left when I get home. I would be fine if, after a day of moderate use including a 1-2 mile GPS run, the battery was ready to die by 10-11PM. But 6?? C'mon...
Click to expand...
Click to collapse
I couldn't agree more! If I happen to be on 3G and remotely connected my battery drops at a rate of 10-20% per hour. that's absolutely unacceptable

I sincerely hope that we have not already received the update because my battery life is nowhere near what they advertise. Ours still has a "j" in the software version (aoj6) and the update puts others at "l" (aol3) so....I'm hoping that since "l" is after "j" that we just haven't gotten the update yet

AmyMejlak said:
I sincerely hope that we have not already received the update because my battery life is nowhere near what they advertise. Ours still has a "j" in the software version (aoj6) and the update puts others at "l" (aol3) so....I'm hoping that since "l" is after "j" that we just haven't gotten the update yet
Click to expand...
Click to collapse
I believe you are correct about the letters. I am still running some test on battery life via different connection modes (ATT - AOL3) but my preliminary results on 4G suggest something close to 10% per hour with ~2.5 bars (-110dbm) cell tower signal strength on average. The life of the battery will be completely dependent on the signal stregnth. I can also confirm that if you go to an area with no signal you will kill the battery at an alarming rate (having calculated it yet but I would guess around 20% per hour).

Anyone from Verizon get this yet? I see lots of people have gotten it but I'm still waiting....

I'm on Verizon and no have not gotten. Don't think Verizon has sent out. I'm wondering if we are already on it and don't realize it? ...

thejdoe said:
I'm on Verizon and no have not gotten. Don't think Verizon has sent out. I'm wondering if we are already on it and don't realize it? ...
Click to expand...
Click to collapse
I hope we didn't already get it because my battery life has not improved. We are on AOJ while the update should move to AOL

I have to say I am happier with the battery life than I was when I first got the watch. I'm not sure the cause of the increased battery performace, but I know I was toying around with the watch a ton when I first got it, trying to set it up, get familiar with it, apps, etc.
Today I am currently 4 hours off the charger and still have 85%. I have been remotely connected (phone left at home) for the full 4 hours, BT on, wifi on, GPS off, brightness set to 2, I have sent multiple texts from the watch, and I am constantly receiving gmail and hangout notifications.
Last Friday I took the watch off the charger at 8AM and used it pretty constantly all day, including GPS on for a 2 mile run (I also left GPS on after that accidentally most of the day).

I gotta say my battery is doing pretty good too after I got my new device, factory reset, and configured. I took the watch off the charger at 630am EST. I haven't used the watch much besides answering a couple of texts and checking the time. I'm on 90% at 1:33pm EST. Everything is off except bluetooth. This has been the best day of battery life so far I'm very satisfied although the new charger is making a high pitch noise when the watch is charging. I'm gonna have to have Verizon exchange that for me. Still no battery optimization update though. I wonder how much better it can get.

jcip17 said:
I gotta say my battery is doing pretty good too after I got my new device, factory reset, and configured. I took the watch off the charger at 630am EST. I haven't used the watch much besides answering a couple of texts and checking the time. I'm on 90% at 1:33pm EST. Everything is off except bluetooth. This has been the best day of battery life so far I'm very satisfied although the new charger is making a high pitch noise when the watch is charging. I'm gonna have to have Verizon exchange that for me. Still no battery optimization update though. I wonder how much better it can get.
Click to expand...
Click to collapse
Is Yours the 3g? If so, that's amazing battery life. Mine is the 3g. Took mine off charger at 6am and was down below 90% at 9am. I'm averaging a drop of 4-5% per hour. (That's bt, if I go on mobile with a remote connection I drop much faster)

AmyMejlak said:
Is Yours the 3g? If so, that's amazing battery life. Mine is the 3g. Took mine off charger at 6am and was down below 90% at 9am. I'm averaging a drop of 4-5% per hour. (That's bt, if I go on mobile with a remote connection I drop much faster)
Click to expand...
Click to collapse
Yeah it's 3g. In reality we're going to be charging it every night. These batteries are better when they are charged anyways. As long as it gets me through the day I'm happy. I'm on 69% now with light use (answering some texts; checking notifications when they come, no email though I'll go crazy; checking the time; and made 3 calls). Not bad.

jcip17 said:
Yeah it's 3g. In reality we're going to be charging it every night. These batteries are better when they are charged anyways. As long as it gets me through the day I'm happy. I'm on 69% now with light use (answering some texts; checking notifications when they come, no email though I'll go crazy; checking the time; and made 3 calls). Not bad.
Click to expand...
Click to collapse
Do you have wake up gesture on or off?

AmyMejlak said:
Do you have wake up gesture on or off?
Click to expand...
Click to collapse
It's off, everything in settings is off except Bluetooth. I turned off the SHealth auto HR and alerts too.

Just talked to technical support about the update.
After talking with a nice Verizon rep she confirmed that the verizon we all have is the most current. We still haven't gotten the update that added the screen timeout options, notification light or any other new stuff. She also didn't have a date for me but said that the battery life I'm getting is abnormal. She suggested exchanging it for a new one as I'm still within my grace period. I also asked about the 5.1.1 update for my note 4 and she said it was definitely in the pipe to happen but no date sadly.
My experience has been a declining battery life since day 1, today I took it off the charger at around 7AM and it's not 10:30PM and I have 28%. I turned 3g off today to see if it would help, responded to 2 texts, and barely touched it other than that. I have wake command on and brightness is set around 3 with auto dimming and whatnot.
I'm honestly not looking for a full 2 days of battery life, it would be amazing to get some use out of it, maybe go for a 3-4 mile run using 3g and listen to some music and whatnot then go to sleep and wake up and go for it again the next day but realistically it wont happen in this version, maybe the next one.
Will report back after I swap it. Just though you all might want an update.

Has anyone on Verizon received either of the updates?

Just got the update today

Installed several hours ago. Smooth and simple. AOL3
Seems to have fixed "always on "
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