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Help Battery discussions, maintaining battery life

This has me really excited. I finally will not have to worry about my battery anymore.

:adore:

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 (green:Dlight)! Does this method help improve your battery life in the long run:confused:!?

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 -

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.
 
With the non-removable battery I would like to ask this question and get some advice.

When first opening the box and pulling the LTEvo out, what is the best course of action concerning battery maintenance?

Charge it right away, without powering on?
Play with it until it powers down then charge for an extended period of time?

What is the best way to maintain the battery for the first few weeks?

Any and all tips is greatly appreciated!
 
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.
 
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).
 
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.
 
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. :(
 
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.
 
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.
 
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.
 
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!
 
Appreciate your passion for discussion the battery life.

have merged it with this thread. now we can begin to post more real word data and see how earlier speculations match up. :)
 
Appreciate your passion for discussion the battery life.

have merged it with this thread. now we can begin to post more real word data and see how earlier speculations match up. :)

No problem! With so many thread created over the last 48hrs and anticipation of the phone I forgot it already had a thread for it! My apologies!;)
 
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 :D 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.:cool:
 
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.
 
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!;)
 
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.
 
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.
 
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 :D 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 :)
 
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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