I think this is a really good idea. I thought it was so good I contacted Seidio about it. I asked them if they had any plans to make a case battery for LTEvo? They told me they would forward my request to their product development. Maybe if a few more people contact them they might see the need to make them. I think its worth a try.
What brand is the battery? Where did she get it from? I had an extended battery on my old EVO and it lasted over 18 hours with moderate to heavy use. I bought mine on ebay.
EarlyMon or novox77; I have a question! I've heard people mention it, but I never actually took it serious!? When you first get your phone, should you let it charge for a specific amount of hours or until it's just fully charged (greenlight)! Does this method help improve your battery life in the long run!?
EarlyMon or novox77; I have a question! I've heard people mention it, but I never actually took it serious!? When you first get your phone, should you let it charge for a specific amount of hours or until it's just fully charged (greenlight)! Does this method help improve your battery life in the long run!?
How to optimize one's battery will always be a touchy topic filled with lots of differing opinions, anecdotal evidence, and such.
So, with that said, I'll throw my 2 cents in
In my view, most "battery conditioning" tips for lithium ion/polymer batteries are not necessary. The only things to know are: 1) lithium ion batteries age over time as a natural consequence; 2) lithium ion batteries will slowly lose their maximum capacity with every charge/discharge cycle (you cannot avoid this, this is just using the battery); 3) completely discharging your battery will damage it (though all modern electronics shut down devices before that); and 4) many/most devices will "float" charge a battery, meaning that when you hit 100%, it will shut off charging and wait until some set battery level (90 or 95%) until it starts charging again to maximize the life of the battery.
I'll close with one of my more controversial thoughts -- 5) though battery life calibration is important, I think it's not necessary or not a feature on Android phones (though my opinion differs for laptops)!
Other wise people here have differing opinions, but in a nutshell, for lithium ion batteries, the point is, just use it normally and don't sweat the small stuff.
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This has me really excited. I finally will not have to worry about my battery anymore.
It really excited me as well. I the battery life really had me concerned. I still think I'm going to wait at least a month before I pick up the phone so I can hear what everyone on this forum thinks of the battery life.
EarlyMon or novox77; I have a question! I've heard people mention it, but I never actually took it serious!? When you first get your phone, should you let it charge for a specific amount of hours or until it's just fully charged (greenlight)! Does this method help improve your battery life in the long run!?
I agree with NeoteriX, don't sweat it and avoid most all battery advice, especially with the newer battery technologies. The Evo days are gone.
My mileage varies on calibration with Android though.
Just use your phone for a few weeks and you'll see battery life improve. Your battery will calibrate naturally and automatically by Android as you use it. If you root and change roms, then consider wiping the battery calibration file. Otherwise, Google engineer Diane Hackborn had this to say -
Quote:
Today's myth debunking:
"The battery indicator in the status/notification bar is a reflection of the batterystats.bin file in the data/system/ directory."
No, it does not.
This file is used to maintain, across reboots, low-level data about the kinds of operations the device and your apps are doing between battery changes. That is, it is solely used to compute the blame for battery usage shown in the "Battery Use" UI in settings.
That is, it has deeply significant things like "app X held a wake lock for 2 minutes" and "the screen was on at 60% brightness for 10 minutes."
It has no impact on the current battery level shown to you.
It has no impact on your battery life.
Deleting it is not going to do anything to make your more device more fantastic and wonderful... well, unless you have some deep hatred for seeing anything shown in the battery usage UI. And anyway, it is reset every time you unplug from power with a relatively full charge (thus why the battery usage UI data resets at that point), so this would be a much easier way to make it go away.
Its lithium ion so there is nothing you need to do other than use the phone.
you do not want to severely discharge the battery as the cells can turn into paste and when you go to recharge the battery, that part of the cell that's turned to paste will no longer hold a charge.
Lithium Ions are designed to be used with no memory effect that plagued NiCad and MiMH chemistries.
its literally that simple. just do not fully discharge the battery and you will be ok. this goes for Lithium Ion technology in any device, not just this handset.
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Its lithium ion so there is nothing you need to do other than use the phone.
you do not want to severely discharge the battery as the cells can turn into paste and when you go to recharge the battery, that part of the cell that's turned to paste will no longer hold a charge.
Lithium Ions are designed to be used with no memory effect that plagued NiCad and MiMH chemistries.
its literally that simple. just do not fully discharge the battery and you will be ok. this goes for Lithium Ion technology in any device, not just this handset.
I'm sorry, but when you say "discharge" you mean don't let the phone completely die!?
"severely discharge", as in its not recommended to let the battery completely drain to a ZERO of EOD (End Of Discharge) state.
its also OK to keep the phone plugged up to the tap (power) overnight. the cells have sophisticated electronics in it so it knows when to cease charging, so you can not OVER charge. ive always left my phones on tap overnight and even at the job i leave the phone on tap all day (i use my tablet so the phone stays on the tap).
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The battery/phone should also have a safety shutoff threshold that prevents you from discharging the battery (meaning using the phone) until the battery is below the point where continued discharging will result in battery damage. That's why Android devices shut off at 3-5% instead of 0%. To prevent battery damage. But I wouldn't recommend you kill your battery and let it sit for a week without a charge. Natural discharge will bring the cell below that level.
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The battery/phone should also have a safety shutoff threshold that prevents you from discharging the battery (meaning using the phone) until the battery is below the point where continued discharging will result in battery damage. That's why Android devices shut off at 3-5% instead of 0%. To prevent battery damage. But I wouldn't recommend you kill your battery and let it sit for a week without a charge. Natural discharge will bring the cell below that level.
Agreed, and when using the phones recovery, if you're a rooted user, you should always play when you've got a deicent charge prior. I'm not sure what the newer recoveries will bring, but in my experience with the OG evo, if you let your phone die while in recovery, you've discharged it to 0%. The recoveries wouldn't power down when at 5% or so. We've had a few members completely drain their battery in recovery and it was a PITA to get the phone functioning afterward.
Like I said, hopefully the newer recoveries will have this baked in, or at least have charging integrated while using the recovery. The OG evo recoveries had neither.
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All I know is that the iPhone 4s battery is what 1450mah and lasts pretty much all day. Granted things are not running in the background per say. But with the 2000mah embedded battery, I am not too worried. Just charge it at night.
I know when we went to Disney World last year I used the ob evo as a camera and went through 4 batteries every day. This year when we go and having the evo 4g lte I will be good, but still might pick up a battery back up charger to be on the safe side.
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All I know is that the iPhone 4s battery is what 1450mah and lasts pretty much all day. Granted things are not running in the background per say. But with the 2000mah embedded battery, I am not too worried. Just charge it at night.
I know when we went to Disney World last year I used the ob evo as a camera and went through 4 batteries every day. This year when we go and having the evo 4g lte I will be good, but still might pick up a battery back up charger to be on the safe side.
i want to add 3 things..
1. iphone has a very small screen, so it does not eat battery like a 4.3" screen on the OG evo.
2. from other posts about Disney World, the reception is very very bad there. that alone has cased the battery to be reduced in a major way.
the LTevo will have the same issue, but would last a little longer because of the bigger battery. best way to make it last longer there, is to turn on airplane mode.
3. Hopefully the new vision network upgrade will be completed there by then..this would save your battery more, if the signal has gotten better there. this of course would be better for all sprint phones batteries in that area.
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Quote:
Originally Posted by dan330
i want to add 3 things..
1. iphone has a very small screen, so it does not eat battery like a 4.3" screen on the OG evo.
2. from other posts about Disney World, the reception is very very bad there. that alone has cased the battery to be reduced in a major way.
the LTevo will have the same issue, but would last a little longer because of the bigger battery. best way to make it last longer there, is to turn on airplane mode.
3. Hopefully the new vision network upgrade will be completed there by then..this would save your battery more, if the signal has gotten better there. this of course would be better for all sprint phones batteries in that area.
Reception with Sprint and Disney have always been great. Full bars. Plus now they will be offering free wifi at the resorts. I was getting paid to take pics o everything from every single menu to attraction to sign to store. So when I sai it was using as a camera I meant not in te casual way.
Yes the screen is bigger than the iPhone, but reception has never been an issue.
Last edited by crow11ad; May 13th, 2012 at 02:38 PM.
When I receive my phone I will contribute my result! I want to see individual battery life usage from light, medium and heavy and how long his your phone lasting for you! And/or Battery Q&A!
I agree. If it wasn't for the battery, this would be my next phone. I stream and browse throughout the day and don't usually have a place to plug it in until I get home. I really love this phone, it is too bad that it won't work for me.
I'm with you up to a point! I know people like the idea of being able to just swap out a battery. I'm just not seeing the difference from buying a battery pack and you just plug it into the phone and charge it that way. I got one and I just haven't had the need to use it yet today But with my battery pack plugged into LTEVO it continues to run just fine and charge at the same time The battery pack I have is not much bigger than a battery you would carry to swap out if you could swap out LTEVO Maybe just missing something in translation, but it seems to be the same thing but done differently.
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At 28%...
12h 29m 47s on battery
Never got anywhere near this on original EVO 4G
And that is with tons of tinkering and an over 60 minute phone call with Mom...what the heck was she thinking calling me when I had my new ohone anyway???
When I receive my phone I will contribute my result! I want to see individual battery life usage from light, medium and heavy and how long his your phone lasting for you! And/or Battery Q&A!
These days, I'm a light user. I typically end up with 70% charge remaining on my Evo 3D at the end of a day (16 hours). Will be curious to see if I can do better on this new phone.
Unhide to see my usage.
My typical usage:
-lots of quick email checking throughout the day
-Google maps with GPS (not navigation) for 30 min during afternoon rush hour to check traffic
-Streaming music via Google Music for 1 hour during same rush hour
-Runkeeper with GPS to track my runs (averaging 3-5 miles, or approx 30min)
-one to two short phone calls a day
-one to two SMS messages a day
I'm on wifi the entire day except during the morning and afternoon commutes (2 hours total), and during my runs (30 min). During these periods, I'm on 3G.
In general, I avoid surfing the web on the phone; I'm almost always in front of a PC at work and home, where I feel the browsing experience is superior due to the monitor size and the speed of typing on a real keyboard. When I'm remote and need to look something up, that's the only time I'll use the phone's browser.
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These days, I'm a light user. I typically end up with 70% charge remaining on my Evo 3D at the end of a day (16 hours). Will be curious to see if I can do better on this new phone.
Unhide to see my usage.
My typical usage:
-lots of quick email checking throughout the day
-Google maps with GPS (not navigation) for 30 min during afternoon rush hour to check traffic
-Streaming music via Google Music for 1 hour during same rush hour
-Runkeeper with GPS to track my runs (averaging 3-5 miles, or approx 30min)
-one to two short phone calls a day
-one to two SMS messages a day
I'm on wifi the entire day except during the morning and afternoon commutes (2 hours total), and during my runs (30 min). During these periods, I'm on 3G.
In general, I avoid surfing the web on the phone; I'm almost always in front of a PC at work and home, where I feel the browsing experience is superior due to the monitor size and the speed of typing on a real keyboard. When I'm remote and need to look something up, that's the only time I'll use the phone's browser.
I feel your results will be astronomical! Espcially with the result you had with your 3D...the Krait (4 gen) processor handles thing way better than the OG Evo and other reviewer are saying that they easily get 15hrs! Can't wait for your results!
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First full day
Light use while at work and I still had 81% 8 hours into the day, very heavy usage for 5 hours in the evening and it's just now under 20%. Power in settings claims the display used 64% of that drain, set to auto brightness all day. Mostly had LTE off during the day, kept switching after work to see how the 3g speeds were affected. My OG never seemed any different with WiFi on or off over the course of a day, so I never bother to turn it off.
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Are there any true heavy users here? I am waiting for a report on those results.
By heavy I mean 3-5 hours a day of calls, 5 IMAP accounts syncing every thirty minutes, gmail, texts, internet usage, Bluetooth and WiFi on all day.
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First charge -> shut off
Light use
~20hrs total - 3.5 hrs up (screen on-76%) 14.5 hours idle (phone idle-5%) - 2 hours excused for activation, first use, and restart.
Dark yellow signal zone (cell standby-5%)
Full brightness until battery got low, No sync - internet off unless in use.
Last edited by PyroSporker; May 26th, 2012 at 04:33 AM.
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I prolly put the LTEVO through its toughest pace since getting it Thursday. I kept the screen brightness set to 50%. GPS, WiFi, BT on the whole time. I streamed Pandora most of the day on the road. Heavy internet YouTube usage mostly. Plenty of video/picture shots taken. Watched 3hrs movies (HBO Series "Boardwalk Empire Disc 1&2) Total of 8hrs 57min and total 38% batt left. 78% of that usage was the screen. Droid maybe "Does" but LTEVO "Did" "Did" meanin, It did me in. I'm wiped out trying to smoke check the battery. I got home from my road trip, tried to burn out the last bit of the battery. I caved , I plugged LTEVO in and turned on the TV no doubt could have pushed it to 10hrs, just not that hardcore. Soon as Picasa is working get a screen shot up. TY, Marc on the info on how to screen grab on LTEVO
Last edited by WifiMaxed; May 26th, 2012 at 04:05 AM.
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Keeping GPS, BT, and WiFi on doesn't drain the battery at all if these radios are not in use. Even the background polling for WiFi hotspots isn't much of a battery hog.
GPS won't start using power until you open an app that forces the phone to find satellites. You'll know this because the radar-looking icon will blink in the status bar and go steady when enough satellites have been found.
WiFi would be the preferred method of data connection compared to 3G or 4G in terms of saving power. You're also much more likely to have a strong WiFi signal than a strong signal from a cell tower, and battery life is very adversely affected by weak signals.
BT won't use power until you're paired and connected with a BT peripheral. That could be a car, a headset, or a heart rate monitor, etc. Compared to GPS, 3G/4G, and WiFi, BT requires the least amount of power to transmit data. If this phone indeed has BT4.0, the power requirement is even lower to the point where it's almost negligible.
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I think the battery in the EVO LTE is going to work well for me. Yesterday I fooled with it off and on almost all day, installed apps, played games, setup email accounts and changed other settings and after using it 10x more than I would in a normal day I was only around 50%.
I am not a big movie/tv streaming person and I can charge at home and work so I will be fine.
I'm curious to see if this is going to be that much better than the 3D overall, noting that the LTE and 3D have the same size battery (I think... 1800mAh, right?). With ICS, with the stock battery, and all the same apps installed as with gingerbread, I'm getting almost exactly the same time off charge as you guys so far. I'm playing music off sd pretty much the whole day, make lots of text messages,and browse a good bit.
I'm curious to see if this is going to be that much better than the 3D overall, noting that the LTE and 3D have the same size battery (I think... 1800mAh, right?). With ICS, with the stock battery, and all the same apps installed as with gingerbread, I'm getting almost exactly the same time off charge as you guys so far. I'm playing music off sd pretty much the whole day, make lots of text messages,and browse a good bit.
Keep the experiences coming!
EL TEvo has 2000mAh
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I always thought wifi drained the battery more.... At least that's what what it seemed on the OG and 3D.. I'm scared to leave the wifi radio on when I leave the house.... Lol.
I always thought wifi drained the battery more.... At least that's what what it seemed on the OG and 3D.. I'm scared to leave the wifi radio on when I leave the house.... Lol.
100%... wifi is better for battery.
OG evo at home with wifi = 30 hours of standby with little use.
OG evo with wifi off and 3G on = 12 hours of stand by with little use.
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I always thought wifi drained the battery more.... At least that's what what it seemed on the OG and 3D.. I'm scared to leave the wifi radio on when I leave the house.... Lol.
On the original EVO 4G, keeping WiFi enabled when there is a WiFi signal and connection greatly improved battery life, especially if you have Exchange Active Sync set for push email notifications. So far, I'm getting even better results with my LTEvo using the same setup. I would only turn off WiFi if you are not in range of a Hot Spot with connection privileges. Another thing I would check for that will increase battery life on the LTEvo is to go to Settings> Mobile network> Network mode and change the Preferred network mode from "LTE/CDMA" to "CDMA only" until you get LTE turned on in your area. This should have been done during your phone's initial setup, but it may have been missed.
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On the original EVO 4G, keeping WiFi enabled when there is a WiFi signal and connection greatly improved battery life, especially if you have Exchange Active Sync set for push email notifications. So far, I'm getting even better results with my LTEvo using the same setup. I would only turn off WiFi if you are not in range of a Hot Spot with connection privileges. Another thing I would check for that will increase battery life on the LTEvo is to go to Settings> Mobile network> Network mode and change the Preferred network mode from "LTE/CDMA" to "CDMA only" until you get LTE turned on in your area. This should have been done during your phone's initial setup, but it may have been missed.
yes.. i think turning off LTE for now .. would save battery.
but.. i am reading a lot of results about how turning off LTE.. reduces the speed on 3G data!!.. as much as 50% less!!!!!
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yes.. i think turning off LTE for now .. would save battery.
but.. i am reading a lot of results about how turning off LTE.. reduces the speed on 3G data!!.. as much as 50% less!!!!!
just a thought but did i not read SOMEWHERE that the LTE radio was technically a 3g/LTE radio and then there was another 3g radio just for 3g
so maybe turning LTE off turns one of the 3g radios off as well, reducing overall connection to 3g by %50
I have had the same experience as other users. I have owned both the Evo and EVO 3D. I can leave my phone plugged in most of the day at work so I never really have issues with battery. From what I have seen away from work where it stays off the charger. It has better battery life than the previous 2 phone by a good measure.
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Juice Defender is a good idea but I found it messed with too many processes that require data connections. All of the turning on and off of radios really messed with a lot of apps, which caused problems in other ways. I don't think I'll be using it again.
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My first day of usage used a lot more battery, but a lot of that must have been because of all the app installations and setting configurations. Now that most of that is out of the way, here's my second day of usage:
I had my phone on for just under 30 hours. Used about 45-60 minutes of the phone, across seven calls. Minimal texts (sent/received 5-10). Used the camera for 15 minutes. Used the browser for 15 minutes. Set up Bluetooth pairing with my car and listened to one song. I left wifi turned on at all times (I have a wifi connection at home and at work). Maybe I did a couple other random things, but the main things are listed above. Before putting the phone back into standby, I always found myself going to the recent apps button, and clearing that out. I'm not sure if that's just me being superstitious or if that plays a part in keeping the battery usage down. Someone's knowledge on this would be greatly appreciated.
And I still had 33% to to go. I had to get it charged for today, so I couldn't let this test go longer.
Juice Defender is a good idea but I found it messed with too many processes that require data connections. All of the turning on and off of radios really messed with a lot of apps, which caused problems in other ways. I don't think I'll be using it again.
Examples? I used it on the OG and it didn't seem to mess anything up. I too would prefer to not have to use it, but if it help, then sure. Just wondering if it counters anything ICS and Sense incorporated to save batt life. Thanks in advance for the feedback.
Examples? I used it on the OG and it didn't seem to mess anything up. I too would prefer to not have to use it, but if it help, then sure. Just wondering if it counters anything ICS and Sense incorporated to save batt life. Thanks in advance for the feedback.
Well, I don't know how aggressive you have your settings on Juice Defender, but for me, turning off the radios while sleeping and turning them back on when awake made the phone act bizarrely. But you know, if it works well for you, then don't worry about my problems with it.
wow..that might take several days of testing.. which means several days that you can not use the LTevo as your communication device.
glad you are willing to do it.. i am curious to know.. but dont have the patience to do all that.
I was good with my Evo, and have been ecstatic with my 3vo.
This community has given me so much, and I have run my mouth about battery life, so I figured it's high time that I pony up.
I have spent the better part of the late afternoon decompiling Vellamo so I run it in a loop, test bed style, for an objective and fair assessment.
My test matrix will have the same weaknesses as others - limited scope.
But on the plus side, I hope to give back two things - comparison against blogosphere standards, and someone that you can all question for validity, fairness, and completeness.
I want to know, I think others do too, and I think that it's the least I can do.
I only wish that I could do more, and with no-holds-barred as the rules between us, I hope that with honest criticism, I can do my best to answer the mail.
I am openly skeptical about the fixed battery along with the whiz-bang promises, and I think that we all want to know the same thing - what are the fancy tech claims and what is reality??
yes.. i think turning off LTE for now .. would save battery.
but.. i am reading a lot of results about how turning off LTE.. reduces the speed on 3G data!!.. as much as 50% less!!!!!
Wait a sec.... I turned the LTE off figuring there was no point in having it on if the network is not in place and switched to cdma only.. Was that a mistake? For some reason in my area (south jersey) My 3g has been horrible.. Phone calls and txt are fine picture messages go right through but when I attempt to connect to the Internet.. Oh boy.. I'm hoping it's just due to heavy traffic bc of memorial Day weekend... ALOT of people come to the town I live in.. Thousands of thousands actually... Should I turn LTE back on??
Luckily my wifi at home is supa fast but 3g for me is horrible at work.. In the car... Just Plain everywhere starting this morning...
The HTC EVO 4G LTE is Sprint's version of the HTC One X. It comes with all the same specs, except for the processor, internal storage and radios (includes LTE). And aesthetics are also significantly different.
While many users have complaine... Read More
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