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[Q] Edge only Battery Life?

Does anyone else set their device to GSM / edge only? I dont have a data plan so there isn't a need for 3G. Also i spend my day in an area of a building that barely receives an edge connection so it keeps the Fuze from switching from 3g to edge to 3g / etc...
Today was the first day (outside of my office) that i used it with 3G off. and the battery only lasted about 4 hours i had only sent / read about 40 text messages in that time too. it is weird.
just looking for input from others that might have the 3g turned off.
thanks!

u mentioned u don't have a data plan... so did you use your wifi extensively?

I have 3G off, but I don't read so many massages my battery keep 2-4 days. I also disabled TF3D.

I have 3G disabled as I have the Euro/Asia TP so 3G doesn't work here in North America. I have a data plan, 3G would be nice but EDGE is enough for my medium email / browsing needs.
I use WiFi only when I need to stream media or download files above 10mb, etc. I fine that my battery lasts 1-2 days, depending on my usage. Also I find my battery lasts longer than it did before, partly I think because I put the phone down sometimes now, and partly because it is now "broken in" properly.
I think it is vital to battery life to disable the radios you are not using, such as bluetooth and WiFi, as those are from a battery's standpoint, the silent killer.
I would also be inclined to agree with majkeljj, in that TF3D really draws a lot of power. I did test this, but I find reduced battery life is worth it, as I like TF3D....for now at least

i started today with
a full charge
egde
TF3D - enabled
no wifi
no BT
and it is crummy to the point where it will be dead later tonight. I dont browse EVER from my phones. I'll try it again tomorrow with the same start and TF3D off.
thanks for the input!

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.
Click to expand...
Click to collapse
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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Click to collapse
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.
Click to expand...
Click to collapse
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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Click to collapse
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

[Q] Anyone notice crazy battery drain when signal is spotty?

I'm currently out at a client site, but it's super bad reception here in the conference room they stuck us in. First of all, no 4G in colorado springs, so i disabled LTE, and hit CDMA in the network settings.
3G is near impossible inside, so i usually get 1X, and voice connection is next to impossible also.
So i noticed that from unplugging in the morning at 7:30am. at around 2pm, my battery was already down to 10%!
And i didn't even use it.
I did see from my battery usage, that Android system was ABOVE screen in power usage.
Anyone have the same issue?

I've had the same problem with EVERY phone ever, even non-smartphones have this problem. The lower the signal, the more the phone will scan for a good signal. If it has no service, it scans very frequently. If you're on a smartphone, it's even worse because then when the phone does get service, all the data apps attempt to use what little bandwidth you do have all at once. If you're in an area with poor coverage, put your phone into download mode or disable the data connection. Nothing short of putting a network extender or new tower will solve this.

Yes, but this is typical of most phones really. Searching for a signal, acquiring it, losing it, etc, uses a lot of battery. You just have to disable data. If there is wifi available, then use that, if not, just have to wait until you go outside. I have no reception in my building at work, if I leave data on, my battery is dead in a couple hours, on wifi I can go all day

Yes and my phone got very hot in my pocket at the time as well.

got_rice64 said:
I'm currently out at a client site, but it's super bad reception here in the conference room they stuck us in. First of all, no 4G in colorado springs, so i disabled LTE, and hit CDMA in the network settings.
3G is near impossible inside, so i usually get 1X, and voice connection is next to impossible also.
So i noticed that from unplugging in the morning at 7:30am. at around 2pm, my battery was already down to 10%!
And i didn't even use it.
I did see from my battery usage, that Android system was ABOVE screen in power usage.
Anyone have the same issue?
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Click to collapse
I have this issue at work. I get anwhere from 10-15% battery drain an hour. I have determined that it is NOT because of the data signal though becuase I can turn that off and still get about the same excessive drain. It appears to be because of the voice signal. It varies anywhere from -85dm to -115dbm and is constantly changing. When I get outside of work environment, everthing is fine again and battery usage returns to normal. My Droid X did not have this issue.

-115db? How do you have signal at that rating? lol. Phone gets to about 1 bar when it reaches 101 for me.

I have the same issue in my office. I just barely get voice/text service. My solution is to turn off mobile data and plug my phone in to balance out the battery drain from the weak signal. I know it is bad to have my phone plugged in all of the time but it is better to be able to have sms and not have a dead phone when I am done at work.
Sent from my SCH-I510 using XDA Premium App

Samsuck said:
-115db? How do you have signal at that rating? lol. Phone gets to about 1 bar when it reaches 101 for me.
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Yeah. Tell me about it. I am using Mobile Signal Widget to measure this. When It gets that bad, a little android face appears in the widget and it is crying.

YES! easily drains 10-15% an hour at a local pub that has 1 bar of signal.

It makes perfect sense... Your phone is fighting hard for that signal.
Sent from my Droid Charge running GummyFroyo 1.9.1

I drive 50+ miles to get to work and I always notice it drains a lot during my commute even when not used. I figured it was because of all the cell site swaps and searches bc I'm sure there's some spotty areas.
Sent from my SCH-I510 using XDA Premium App

Same experience. Dropped to 5% in 9 hours yesterday when I forgot to turn off data while at work. Today, I'm still at 75% after 9 hours with data off.
Juice defender solved this on my fascinate. It turned data on only once every 30 minutes. But, I can't get it to turn my data back on with this phone.
I really wish data signal aggressiveness was managed better by the operating system. It could be a real boon to the average battery life. Perhaps a smart developer could come up with some sort of "conservative" governor for 3g/4g connections. Rather than increasing power draw, it could just "sleep" until a stronger signal is detected... Imnuts? Is this even possible or just a pipedream?
Sent from my SCH-I510 using XDA App

I can't reach my dad on his cell phone while at the pentagon for obvious reasons. He has to turn his phone off during the day or it'll die in a few short hours, as a previous poster mentioned searching for a signal is a huge battery drain.

Strange. I did not have this problem with my OG Doid or Droid X in the same environment. Maybe the Moto phones simply have a better radio than the Charge.

Yeah for some reason, the samsung radio are junk. I have my Droid Charge (personal) and an Lg phone (business) and the lg blows the sammy out of the water. Now i am in 3g fringe (forget about 4g), and the sammy loses data all together while my lg still has the signal. I hate when i am trying to search for something on the charge and it says connection failed or network unavailable retry. Even when i call verizon, they all have me do a reset and stuff, and nothing works. The best answer i get is that iam in a 3g fringe area. When i tell them that my lg works and still has signal, all i get is silence or hmmmmmm. Gota love it. Yes they exchanged the phone with a new one and it still does the same thing. Forget about battery life. I actually carry 3 batteries with me and on a good day i only use 2 but usually it is 3. Before anyone says use wifi, unfortunatly we do not have free wifi where i work. anyway that should not be the answer to this problem. We are paying for a service that i can barely use.
end rant.
91point6 said:
Strange. I did not have this problem with my OG Doid or Droid X in the same environment. Maybe the Moto phones simply have a better radio than the Charge.
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galaxyuser88 said:
Yeah for some reason, the samsung radio are junk. I have my Droid Charge (personal) and an Lg phone (business) and the lg blows the sammy out of the water. Now i am in 3g fringe (forget about 4g), and the sammy loses data all together while my lg still has the signal. I hate when i am trying to search for something on the charge and it says connection failed or network unavailable retry. Even when i call verizon, they all have me do a reset and stuff, and nothing works. The best answer i get is that iam in a 3g fringe area. When i tell them that my lg works and still has signal, all i get is silence or hmmmmmm. Gota love it. Yes they exchanged the phone with a new one and it still does the same thing. Forget about battery life. I actually carry 3 batteries with me and on a good day i only use 2 but usually it is 3. Before anyone says use wifi, unfortunatly we do not have free wifi where i work. anyway that should not be the answer to this problem. We are paying for a service that i can barely use.
end rant.
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I went through the whole VZW customer service thing both on the phone and in person. They weren't much help but they gave me a brand new phone and it does the same thing. Then there were a lot of suggstions on different forums suggesting apps killers, turning data off, turing on 3g only data, rooting, trying different ROMs, battery clalibration, etc. None of this helps. The kind of drain I am seeing goes way beyond any benefits I would see out of any of these things. For example, I am at work now. When I left the house, it takes about 15 minutes for me to get to work. The rest of the time I have been inside my work building. I have been on battery for 2 hours & 24 minutes and I am at 76% already. Thats >10% drain per hour. When I am outside the building it is more like 3-5%. VZW customer service never suggested this as a problem. They DID suggest that 4g uses more battery but that is not the problem. I have proved that time and again by simply turning data off.

Hmm..sounds like a bad phone..I am in a fringe area at work and it definitely kills by battery faster but..it's only like 8% and hour so I still get 10 hrs a day or so...in a bad area. In a good 4 G area..I will get 24 hrs or so out of the phone.

galaxyuser88 said:
Yeah for some reason, the samsung radio are junk. I have my Droid Charge (personal) and an Lg phone (business) and the lg blows the sammy out of the water. Now i am in 3g fringe (forget about 4g), and the sammy loses data all together while my lg still has the signal. I hate when i am trying to search for something on the charge and it says connection failed or network unavailable retry. Even when i call verizon, they all have me do a reset and stuff, and nothing works. The best answer i get is that iam in a 3g fringe area. When i tell them that my lg works and still has signal, all i get is silence or hmmmmmm. Gota love it. Yes they exchanged the phone with a new one and it still does the same thing. Forget about battery life. I actually carry 3 batteries with me and on a good day i only use 2 but usually it is 3. Before anyone says use wifi, unfortunatly we do not have free wifi where i work. anyway that should not be the answer to this problem. We are paying for a service that i can barely use.
end rant.
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Wow, that is the complete opposite of my experience. I've never had good signal with any LG phone - from flip phones to smartphones. Samsungs in my experience are middle of the road - not great, but not bad either. Motorolas usually do well, but there are certainly exceptions. HTC seems to be fairly good, but again, there are exceptions. Oh, and I did have one Audiovox phone on VZW, and it was garbage.

Haha you can whine about it in my rage thread
Sent from my Droid Charge running GummyFroyo 1.9.1

Is there a way to conserve battery when you have weak signal?

I stay in a hotel room often without free wifi. Most of the rooms I get 1-2 bars, occasionally 3. A decent amount of the time I get no 4g and sometimes signal is so weak no internet at all. I notice this destroys my battery life. Is there someway to lower the extra strain on the battery when I know I will have a weak signal anyway without using airplane mode? I wanna lower the power being used by my phone to search for stronger signal while still being able to receive texts and calls. Would prefer to keep 3G on as well when it works.
On a related note, are there any products I can buy to boost my signal that work? And is there a rom or roms that are known to have great signal strength compared to the rest out right now? Thanks for any help.

sfetaz said:
I stay in a hotel room often without free wifi. Most of the rooms I get 1-2 bars, occasionally 3. A decent amount of the time I get no 4g and sometimes signal is so weak no internet at all. I notice this destroys my battery life. Is there someway to lower the extra strain on the battery when I know I will have a weak signal anyway without using airplane mode? I wanna lower the power being used by my phone to search for stronger signal while still being able to receive texts and calls. Would prefer to keep 3G on as well when it works.
On a related note, are there any products I can buy to boost my signal that work? And is there a rom or roms that are known to have great signal strength compared to the rest out right now? Thanks for any help.
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Click to collapse
You should be fine disabling Mobile Data... You should get texts just fine and use the WiFi for all data purposes.

Im not using the wifi ever unless really important to get it, $15 everyday is too much. So i am trying to rely on mobile data.

Go download the free app "Phone Info", it will allow you to shut off 4G, shutting off 4G stops it from searching and draining your battery.
Once installed, click "Device Information" and scroll about half way down and change the drop box from "LTE/CDMA/EvDo" to "CDMA only"
Hope this helps!

I use phone info already, 3g over 4g definitely helps, but am I wrong in assuming that the phone is still destroying battery when the signal is weak even with 4g off?

Question Battery Life: Lte watch in bluetooth mode vs bluetooth only watch

I checked all the topics (one topic with 2 answers mentions that) and I didn't find an answer to my question, which is:
Is using only bluetooth connection on LTE version watch has worse performance than using watch with only bluetooth version?
Manual says it is possible to change LTE connection to "always off" in the settings, so theoretically battery life should be the same.
And while you are already here, one more question: LTE connection allows only to recieve calls and sms, no app notifs as standalone, right?
I am facing a decission which one 46mm classic shall I buy, and LTE is only 20$ more so I wonder, as I would use eSIM ocasionally, if I should get more expensive one (price for plan taken into account, low cost).
Most worrying are stories that right out of the box LTE versions battery life is pathetic; not even reaching 18hrs not even connected to LTE, while bluetooth versions are doing much better. Any chance that updates changed these problems?
Thanks in advance.

Bo_Doc said:
I checked all the topics (one topic with 2 answers mentions that) and I didn't find an answer to my question, which is:
Is using only bluetooth connection on LTE version watch has worse performance than using watch with only bluetooth version?
Manual says it is possible to change LTE connection to "always off" in the settings, so theoretically battery life should be the same.
And while you are already here, one more question: LTE connection allows only to recieve calls and sms, no app notifs as standalone, right?
I am facing a decission which one 46mm classic shall I buy, and LTE is only 20$ more so I wonder, as I would use eSIM ocasionally, if I should get more expensive one (price for plan taken into account, low cost).
Most worrying are stories that right out of the box LTE versions battery life is pathetic; not even reaching 18hrs not even connected to LTE, while bluetooth versions are doing much better. Any chance that updates changed these problems?
Thanks in advance.
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Click to collapse
I am also wondering which one gets the best battery life. Hopefully someone has an answer, so both of us can make a more informed purchase decision.

It is unlikely anyone can really answer your question authoritatively because I doubt anyone here has BOTH an LTE and non-LTE watch such that they can be compared with otherwise identical setup and use-cases.

Inclement_Death said:
I am also wondering which one gets the best battery life. Hopefully someone has an answer, so both of us can make a more informed purchase decision.
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These are information I was able to find:
*There are some posts over the net of owners claiming that LTE has poor battery life, which is changing every update - once for worse, once for better. There are some news today saying that latest update made battery life worse.
*There is one topic on this forum saying directly that LTE version with Bluetooth turned on has worse battery life than regular LTE, while some owners post LTE screenshots of getting 2 days of battery life
*LTE versions receive updates later - needs confirmation
*LTE allows to recieve and make sms and calls, and also to use Google maps sort-of. Watch standalone doesn't receive phone apps notifications.
*First days are the phase of watch learning battery habits, usually length of battery cycle extends
That's most important info I was able to find so far where it is not mentioned in reviews. Feel free to add something that will be useful for someone looking for advice and if I wrote something wrong - please correct me.
I ordered LTE version. Gonna check out how it will handle basic tasks.
Also there's one very good discussion about the problem:
https://www.reddit.com/r/GalaxyWatch/comments/p8wj76/_/h9xjbcf

crxssi said:
It is unlikely anyone can really answer your question authoritatively because I doubt anyone here has BOTH an LTE and non-LTE watch such that they can be compared with otherwise identical setup and use-cases.
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Well, it is kinda unacceptable, but i might order two models and gonna compare both of them and return one as it might turn with worse battery life than the other. I want to avoid that, so I'm searching for advice here. If i won't find any, there will be only one thing left for me to do.

Bo_Doc said:
Well, it is kinda unacceptable, but i might order two models and gonna compare both of them and return one as it might turn with worse battery life than the other. I want to avoid that, so I'm searching for advice here. If i won't find any, there will be only one thing left for me to do.
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You do not need to do that. It is simple logic. BT and LTE will have exactly the same battery life if you turn mobile data off on the LTE model. If you actively use LTE, this will drain the battery in less than 12 hours.

Fousekis7 said:
You do not need to do that. It is simple logic. BT and LTE will have exactly the same battery life if you turn mobile data off on the LTE model. If you actively use LTE, this will drain the battery in less than 12 hours.
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Yes, there is some logic behind that, but surprisingly there are topics like this:
Where are the battery troubles in the LTE models coming from
There seems to be some sort of consensus that the LTE versions of the watch have more battery trouble Has anyone actually given it some thought as to why? When LTE is off it should not make a difference, but it does seem to exist. Is the...
forum.xda-developers.com

FWIW, I have an LTE Galaxy watch 4 (non classic) 44mm. I usually get 36-48 hours with LTE mode on automatic (which means it only connects to LTE when BT is disconnected or there is no data connection from phone, of course if the phone had no data like in an elevator then the watch won't either regardless of it trying to connect to the same non existent data source). If I turn LTE off completely I can stretch it out to 2 full days. But that's my usage, ymmv.

I too have a GW4 Classic 46mm and have experienced battery drain, however, I expected this and am prepared to live with it as being untethered from my phone was THE primary reason for purchasing this model (My previous watch was a Gear S3 BT version hooked up to my S9).
I hate being out for a run and having to carry my phone with me. It's much more convenient, for me at least, to head out now with my Buds Pro and stream Spotify and not have to carry my bulky S21 Ultra (even with an arm band).
Mind you, when I say battery drain, I'm using mobile data, GPS, AOD and BT, so it's expected.
It's not a deal breaker as far as I'm concerned as I chuck it on the charger while in the shower and by the time I'm ready to wear it again, it's back to the battery level it was when I walked out the door.
Everyone's use case and expectations will vary though and opinions are like aholes; everyone has one.
Hopefully the efficiency of the watch and it's OS improve over the next 6 to 12 months but I, for one, am happy with mine.
If you're searching for the perfect piece of tech, thats akin to searching for that elusive pot of gold at the end of that rainbow.
Happy trails!

No Change in battery life if u use automatic mode. I have Galaxy watch 46 mm and my battery remains on 45 percent at the end of day when i use bluetooth or LTE only mode. Original glaxy waych is bigger and has bigger battery with less functions and hence lasts longer.

I totally agree with this. That's why I got it. But nevertheless the battery life isn't long enough for a 2 hour run if LTE, BT playing music are active. It really is frustrating. I actually power the watch off totally and only power up just as I begin a run.

I have both. I have a watch 4 classic and a watch 4 lte. This is not to say my experience is better, worse, or the same as anyone else's but here is what I've dealt with. The Bluetooth only lasts about a day and a half, sometimes 2. The LTE version was at least a day, until after a couple of updates. The LTE version over heats on me whether I am on LTE or not or even have it turned on. I can't run many apps without it overheating. Turning on LTE without the watch pretty much turns it to airplane mode. If I just leave it set to automatic and not really do much with it other than let it be a watch and receive notifications. Now the battery life is horrible. I can take it off the charger and drive to work, a 10 minute drive, it's already down to 92-95 percent by the time I clock in. By lunch, it's asking to go into battery saver mode. That's with LTE mode in automatic. Turning it off is not better. I tried to track a hike and it overheated on me. I got the LTE version because of the fall detection just in case anything happened on the mountain trail. I had to turn LTE off to continue and even then battery drained like crazy and the device was sluggish. Totally defeating the purpose of me paying for it.It wasn't that bad in the beginning but if course, it's worse after my return period ended.

has anyone with LTE model and using auto mode that lte will stay on no matter what? mine for some reason won't turn off the lte connection even when my phone is connected to it. very seldom do i see the bluetooth only with my phone around. am i missing something?

I've notice that watch being connected to wifi with LTE on auto has much worse battery life. Ergo - i set LTE on only purposefully while choosing to go out without phone, otherwise i choose LTE always off. When i choose LTE off it switches off without problem. Does restart help?

When I went to bed, my watch was on about 60%, left it in the shelf and thought there would be enough juice for the next day but was down to 45%, when the watch isn't on a wrist, surely it goes into a low power state?

Bo_Doc said:
I've notice that watch being connected to wifi with LTE on auto has much worse battery life. Ergo - i set LTE on only purposefully while choosing to go out without phone, otherwise i choose LTE always off. When i choose LTE off it switches off without problem. Does restart help?
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Me too. Though I tried setting LTE to ON and then to auto and it seems to now deactivate when connected to by or Wi-Fi (at least from the quick settings pane or can I see somewhere else if lte is active?)

HI all,
Are there any updates if there are differences in the performance between LTE in BT mode and BT only?
@Bo_Doc, did you manage to find out, did you buy both?
I am currently with LTE 46mm. Airplane mode is turned ON and then BT turned ON manually to connect to the phone - calls, messages, notifs - all good.
I bought the watch on 10.02.2022, so pretty new. Here is my experience with the battery life.
With the settings below my battery lasts around 43/6 hours - almost two days. That's the maximum for me.
LET - OFF - I haven't activated a mobile plan
GPS - OFF
Wifi - OFF
AOD -OFF
NFC - OFF
Brightness - around 40%,
Bedtime mode - scheduled from 00:00 to 07:30 + Power saving for the same period
All smart gestures (raise to wake, gestures for answering/dismissing calls and notifications, quick launch) - ON
Notifications with turning display on for Viber, Gmail, Slack(not always), Phone, Yahoo Mail, FB Messenger, Calendar, Clock, Phone Messages) - ON
Vibration - OFF
Samsung Health monitoring features - OFF (only steps counting )
I have several calls during the day, and a light to moderate number of notifications.
What's your opinion, guys? Am I doing well in terms of battery life, or is my battery underperforming for its capabilities?
P.S. This is my 3d charge cycle.