Database Users

Better Battery Than They Say

Ok so I read a post that said drain your battery completely for better performance so i did.Got low bat warning and played Avatar to kill it quick.Only it didnt die fast,seemed like forever for this damn thing to really die!!!Maybe I just imagined it so I tried it again.Got low bat warning and watched a 25 min youtube vid followed by a 16 min youtube vid and several rap videos before it cut off.Try it and see how long it takes to really run out of juice and I think youll be surprised

I remembered with my G1, that once i got the low battery warning, I was always able to milk every ounce of power from that battery.

after picking up my vibrant yesterday, i charged to a full 100% with the phone turned off
i've been on it all day long, installing apps and restarting quite frequently, and i just got my first battery warning (21%)
will probably run it into the ground after work for another full cycle charge then just charge whenever it needs it. seems to have more than enough to make through a full day, and i'm only saying this because i haven't been able to put it down since this morning and it's still ticking
edit: and this is all done indoors with fluctuating 3g/2g coverage (home and work)

I have twice run my battery into the ground and charged to 100% with the phone off. Now I am getting a little over 25 hours on a single charge. this battery is indeed better than they said it was.

ardchoille said:
I have twice run my battery into the ground and charged to 100% with the phone off. Now I am getting a little over 25 hours on a single charge. this battery is indeed better than they said it was.
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Better than what?
If coming from an old WM, sure, it's better.
But coming from an iPhone, which lasted for 2 days with real use, the battery of the Vibrant sucks.
With moderate use, I can's get through a full day (14-16 hours). It's the one real problem I have with this otherwise great phone.

MacGuy2006 said:
But coming from an iPhone, which lasted for 2 days with real use, the battery of the Vibrant sucks.
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3GS or 4? cause the battery on anything before that was abysmal.

lolcopter said:
3GS or 4? cause the battery on anything before that was abysmal.
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I had two 3Gs (now have a Galaxy S and a Vibrant). It lasted almost double what the Vibrant does, with similar use.
Love the screen of the Samsung, but the battery is making me a little depressed. I am hoping that Froyo will improve it a bit.

MacGuy2006 said:
I had two 3Gs (now have a Galaxy S and a Vibrant). It lasted almost double what the Vibrant does, with similar use.
Love the screen of the Samsung, but the battery is making me a little depressed. I am hoping that Froyo will improve it a bit.
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yeah, hopefully drops sometime soon.
it seems battery life is either really good or really poor, not a lot of middle ground. of course, this could mostly be because of different peoples' opinions. but i'm coming from a dumbphone i only had to charge once a week, and so far i'm pretty impressed. like i mentioned earlier, i've been on this thing non-stop since this morning, and it's just now flashing the battery symbol at me. i imagine once i go through a couple of full cycles, and the new toy factor wears off, it will be a non-issue (for me)
what is your real world usage like?

MacGuy2006 said:
I had two 3Gs (now have a Galaxy S and a Vibrant). It lasted almost double what the Vibrant does, with similar use.
Love the screen of the Samsung, but the battery is making me a little depressed. I am hoping that Froyo will improve it a bit.
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Why not just buy some extra batteries? I picked up 3 extra batteries for when I fly so I can watch movies with no worries...
I get great battery life on my Vibrant. Make sure you turn off everything that you don't need....wifi, gps, keep screen brightness low and not on 100% at all times etc...obvious stuff....

lolcopter said:
what is your real world usage like?
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Just checking email and talking for maybe 30-60 minutes, plus a few texts.
iunlock said:
Why not just buy some extra batteries? I picked up 3 extra batteries for when I fly so I can watch movies with no worries...
I get great battery life on my Vibrant. Make sure you turn off everything that you don't need....wifi, gps, keep screen brightness low and not on 100% at all times etc...obvious stuff....
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Man, I have turned the brightness down to below stock, and I do have two extra batteries. But that's kind of like going back to my WM days.
After the getting spoiled on the iPhone, which would last for almost two full days with everything running, and with similar use, I really hate having to constantly think about the battery, and worry that it's going to die on me.
True story:
Someone hit my car a few days ago and I tried to take a pic with my Vibrant. It was in late afternoon, so the battery was at 15% I guess -- so the phone effectively told me to "F*** Off." Or at least that's how I took it No pic, of course.

MacGuy2006 said:
Just checking email and talking for maybe 30-60 minutes, plus a few texts.
Man, I have turned the brightness down to below stock, and I do have two extra batteries. But that's kind of like going back to my WM days.
After the getting spoiled on the iPhone, which would last for almost two full days with everything running, and with similar use, I really hate having to constantly think about the battery, and worry that it's going to die on me.
True story:
Someone hit my car a few days ago and I tried to take a pic with my Vibrant. It was in late afternoon, so the battery was at 15% I guess -- so the phone effectively told me to "F*** Off." Or at least that's how I took it No pic, of course.
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I hear where you're coming from...have you tried switching out the battery to a different one? I know that some of the batteries were faulty and gave people horrible battery life.
The iPhone also ran at a much slower clock speed and it was equipped with a pretty good battery. There's no denying the awesomeness of the iPhone battery...I'm just thinking that you may have a bad battery. Try changing it out.
There's also a 2800mAh battery pack coming out very soon....it may suit your wants and needs...

The iPhone also lacks widgets and multitasking - and the screen is not as bright so those all help in maintaining battery life.
If you crippled your android in the same way - you could get 2 days pretty easily as well.

dseo80 said:
The iPhone also lacks widgets and multitasking - and the screen is not as bright so those all help in maintaining battery life.
If you crippled your android in the same way - you could get 2 days pretty easily as well.
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Very true...
It's like a Geo Metro vs. Ferrari ...hypothetically, if they had the same size gas tank which one would consume more gas and run out faster? It's obvious...

iunlock said:
Very true...
It's like a Geo Metro vs. Ferrari ...hypothetically, if they had the same size gas tank which one would consume more gas and run out faster? It's obvious...
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Come on now....
I have both, and they both have their good points and bad points.
The battery is a bad point for the Vibrant.
The screen is the best point (it's actually not "brighter", but has much better contrast than a backlit LCD). I keep the Vibrant's screen at it's lowest brightness, anyway.
But in terms of speed, there is really not much difference in daily use - if anything, the iPhone 3Gs feels a little smoother much of the time. Again something Froyo might improve.
My well conditioned battery is at 5%, after 16hrs 54 min., with very light non-call use today (calls are at 49 min. 26 sec.).
My point is, that I have to expect more after using the iPhone, while some here are obviously happy with it. But it ain't great.

MacGuy2006 said:
Come on now....
I have both, and they both have their good points and bad points.
The battery is a bad point for the Vibrant.
The screen is the best point (it's actually not "brighter", but has much better contrast than a backlit LCD). I keep the Vibrant's screen at it's lowest brightness, anyway.
But in terms of speed, there is really not much difference in daily use - if anything, the iPhone 3Gs feels a little smoother much of the time. Again something Froyo might improve.
My well conditioned battery is at 5%, after 16hrs 54 min., with very light non-call use today (calls are at 49 min. 26 sec.).
My point is, that I have to expect more after using the iPhone, while some here are obviously happy with it. But it ain't great.
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Something is wrong with your battery if that's all you're getting.

vapotrini said:
Something is wrong with your battery if that's all you're getting.
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We get five to six hours of display on with this phone. That number is perfect if the phone was on 35% precent or more of those 16 hours.
Sent from my SGH-T959 using XDA App

It's ALL about the apps you use.
My battery life is pretty good, I can go two days with moderate phone use and my normal heavy-e-mail and occasional messaging usage. I don't do much web browsing with it, but I fiddle with it constantly throughout the day.
My friend couldn't get through one day on his, so I encouraged him to play around with some of the apps he had that I didn't, and now he can get well into day two before it gets low enough he wants to recharge.
My wife complained about her battery life, and I realized she was pinging four e-mail accounts once per minute. Just cutting that back to a five minute interval made a huge difference.
Even so, I've ordered spare batteries and a charger since I travel often and a missed call could cost me a lot of money, and they're too cheap to not keep a few around. (In one of those other threads somebody linked to an ebay deal with two batteries and a charger for 8 bucks.)

vapotrini said:
Something is wrong with your battery if that's all you're getting.
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or he's got a bunch of widgets.
That's almost universally a theme when people complain about Android battery usage.

Got my replacement Vibrant yesterday afternoon, charged it full while turned off and took it out at around 9pm. Worked on it a little last night and today installing apps browsing and about 60 min talk time so far.... 3PM and still got 30% left.
Definitely much better battery life than the one I had on first phone. I did get a replacement battery as well, but haven't tested that one yet. This one so far is working as expected.
I haven't rooted yet so I am not sure if that and lag fix has any affect on the battery.
Also ATK is not installed yet, and i hear it has adverse affect on battery. Is that true?

what do you guys see on the battery code?
G7, G8 or G9?

Help me out in HTC DHD

i am planning to buy HTC DHD in a day or two......
all my friends say the battery is poor and blah... blah..
but i like the design, features, etc...
is the Battery really very poor and is there any other trouble in that mobile!!

There are roms that could help you out. They can increase your DHD's battery life If you are willing to root your phone...

I most admit... With normal ROM, the battery really suck.
I haven't tried to root and put a custom ROM on yet, but only heard good things about it!

hey dude the battery usage depends on how u use ur phone
btw, i m also buying DHD on 17th very excited for my first Android

The battery is no worse than any other HTC, infact the battery is slightly better on my DHD than my classic desire.
Sent from my Desire HD using Tapatalk

I've got a standard DHD, not rooted and no custom roms and I have no problem with the battery. I can get more than 24 hours out of a single charge and that is with what I would consider heavy use.

Echoing what has already been said, yes the battery life can be quite poor. My phone will last for a "day" out of the house, by which i mean ~8am-6pm, but will be at ~20% when i get home, so will need charging.
That said, the rest of the features more than make up for that in my opinion

If you manage your data and what you actually use your phone for then you can get lots of time out of your dhd, if you slam your phone by downloading loads and streaming all kinds of videos to it and using gps on maps constantly then yea it'll go, but for the size of the battery and what the phone can do i'm amazed it lasts as long as it does.

Right now I'm at 11h and 39m with 56% left. This is with 3g on. Facebook and twitter every 30 min but its set to automatically update. Surfing, Texting, and a few calls were made as well.

Replace the stock ROM with one of the ROMs available here. I personally use LeeDroid 2.3.4 Beta 4 with an updated Radio. And I am very happy with it. It has given me a better battery life as well as removal of those useless HTC apps is a bonus. I still use sense which adds a lot of frills to stock android. Also look into the battery threads where there are ideas on what to do to optimize battery usage.

If you are getting your first smartphone you'll probably be disappointed in terms of battery. They are like little laptops and you know how much their batteries drain out. It's not that bad, but it's completly different than a normal phone.
You can drain the battery in 4 hours with very heavy usage, with semi-heavy it'll last for ~8 hours. With my use I get about 24 hours. I get up in the morning (15mins Wifi), go to school 15mins Angry Birds, 20 mins or more wifi, come home and wifi + play for 20 mins. Calls 5mins. Go to sleep phone on standby. Next day the same and after school I'll charge and it'll be at 5%. This is very light use.
I'm using Android Revolution, but I'm getting worse battery than with stock because I flashed a bad radio for Finland.
Other faults, I've only found one.
First: The speaker, it's pretty bad. Sometimes if you are in a noisy place you might even miss a call because of the silent speaker. Want to listen to music or watch youtube videos using the phone's speaker? That'll be hard...

I had the same problem with the ROM Cyanogen CM7.
Consumption of the battery far too high.
You should know that the HTC rom with sense use a proprietary driver and less greedy.
For other's rom's hacking in the kernel.
I returned on a rom with sense, Leedroid 2.3.4, I' have never eaten my battery so little.
For Rom's nosense, I wait that problems are solved

JamesBarnes said:
Echoing what has already been said, yes the battery life can be quite poor. My phone will last for a "day" out of the house, by which i mean ~8am-6pm, but will be at ~20% when i get home, so will need charging.
That said, the rest of the features more than make up for that in my opinion
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I'll second that. Mine is the same too.
Given the Pros of the device I will not mind the battery life. Its ok-ish.

I am on stock ROM and I kinda have better battery then when I was on Revolution HD. It gets better after a week usage and after a simple calibration. I get between 24 and 36 hours of medium usage and 3g and autosync aways on. I think its pretty great for this beast!
Sent from my Desire HD using XDA App

General Battery Life question

Can anyone tell me why the Android phones have battery life issues? Here's a scenario...my friend has an iphone, i have the fascinate. We both put our phones in our locker in the morning for work. We both come out for break and he still has well over 90% of battery life while mine is down to 70%. Why do the android phones drain so quickly. Yes I could put it in airplane mode and such but my friend doesn't have to on his Iphone.
Just wondering why these phones have such a tough time with battery life. I notice in a lot of the forums people are trying different things to get better battery life. I have tried different roms, kernels, radios, etc...and really don't notice a huge difference. I am not a heavy user of my phone and it lasts just about the day and dies. I may hit the net for few mins, do some texting, and check email from time to time. I would think the battery should last a couple days just doing this...not drain when the phone is just sitting idle. Anyway just wondering about this.

Apple has complete control over their phones. Designed in house, software developed in house, and carriers have no say in the software.
I have a feeling that has a lot to do with it.
Sent from my SCH-I500 using XDA Premium App

Which ROM? Of course you are aware of the many workarounds needed to keep froyo idle drain under control? These will eventually be fixed for good.
I have even more of a complaint about the active screen-on drain. Using auto brightness indoors, its impossible to get more than 2.5-3.0 hours of screen time. (WIFI or 3g) This is way less than iphone 4's capability of around 8 hours. There are some things that help explain it like androids 100% cpu usage when scrolling or animating the UI. However, there must be massive differences in the screen power consumption. Yea, yea, SAMOLED, power draw depends heavily on displaying black vs. white etc, but my random usage never gets more than about 2.5 hours screen usage over a day. Say what you will about apple, but they optimized the hell out of battery life.

Which kernel are you using? After moderate usage for me (games, browsing web with wifi, phone calls, etc) my battery life is around 70% after 15 hours.

Kaze105 said:
Which kernel are you using? After moderate usage for me (games, browsing web with wifi, phone calls, etc) my battery life is around 70% after 15 hours.
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Guys, since screen-on time dominates battery usage, it'd be nice to note how much screen-on time you get and your brightness setting. Defining "light" usage over a number of hours could mean just about anything... very subjective.

Scrappy1 said:
Guys, since screen-on time dominates battery usage, it'd be nice to note how much screen-on time you get and your brightness setting. Defining "light" usage over a number of hours could mean just about anything... very subjective.
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True enough. I set my light to auto and since im usually in a room, the light setting is at lowest. When im outside, its goes to the brightest settings.

Shakes The AssClown said:
Can anyone tell me why the Android phones have battery life issues? Here's a scenario...my friend has an iphone, i have the fascinate. We both put our phones in our locker in the morning for work. We both come out for break and he still has well over 90% of battery life while mine is down to 70%. Why do the android phones drain so quickly. Yes I could put it in airplane mode and such but my friend doesn't have to on his Iphone.
Just wondering why these phones have such a tough time with battery life. I notice in a lot of the forums people are trying different things to get better battery life. I have tried different roms, kernels, radios, etc...and really don't notice a huge difference. I am not a heavy user of my phone and it lasts just about the day and dies. I may hit the net for few mins, do some texting, and check email from time to time. I would think the battery should last a couple days just doing this...not drain when the phone is just sitting idle. Anyway just wondering about this.
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Iphone pretty much have more or less the same battery life problems.
Scrappy1 said:
There are some things that help explain it like androids 100% cpu usage when scrolling or animating the UI. However, there must be massive differences in the screen power consumption. Yea, yea, SAMOLED, power draw depends heavily on displaying black vs. white etc, but my random usage never gets more than about 2.5 hours screen usage over a day. Say what you will about apple, but they optimized the hell out of battery life.
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If you use Google Navigation and constantly force rerouting to destination by taking wrong turn/path, your 100% charged phone would hit empty within 2HRs or less with the screen brightness set at minimum.

Anandtech reveiw of several real world tests shows iphone 4 smokes the fascinate bad. Not even close.
http://www.anandtech.com/show/3957/samsung-fascinate-review-verizons-galaxy-s-smartphone/8

Scrappy1 said:
Anandtech reveiw of several real world tests shows iphone 4 smokes the fascinate bad. Not even close.
http://www.anandtech.com/show/3957/samsung-fascinate-review-verizons-galaxy-s-smartphone/8
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We have a more powerful phone than the iphone 4, of course our battery is shorter. (better screen, faster cpu, etc) Also seems like our antenna is the best according to the review.

Android is made to constantly sync with the internet for updates and notifications. It's just the nature of the operating system to draw a lot of power because in theory it is a more powerful and complicated system. Also keep in mind that the battery inside an iPhone is huge and it is lithium polymer which lasts longer but is more expensive. These larger lithium polymer batteries are the main reason iPads and MacBooks get good battery life as well as their less powerful chip sets.
EDIT: Oh, and also iOS doesn't use as much RAM as Android so that also factors in to the battery life being generally better.

Kaze105 said:
We have a more powerful phone than the iphone 4, of course our battery is shorter. (better screen, faster cpu, etc) Also seems like our antenna is the best according to the review.
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Dunno about you but my Fascinate get's poor signal compared to other phones. Also slower network speeds.

Kaze105 said:
We have a more powerful phone than the iphone 4, of course our battery is shorter. (better screen, faster cpu, etc) Also seems like our antenna is the best according to the review.
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I appreciate the more open, easy to modify nature of android over apple. But to trying and explain the 2x worse battery life on android as arising from "better" processor and screen is wishful thinking at best... blatent android fanboy propaganda at worst. We need to learn how apple has optimized things, not turn an overconfident blind eye.

Scrappy1 said:
I appreciate the more open, easy to modify nature of android over apple. But to trying and explain the 2x worse battery life on android as arising from "better" processor and screen is wishful thinking at best... blatent android fanboy propaganda at worst. We need to learn how apple has optimized things, not turn an overconfident blind eye.
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It's unfortunately that the Fascinate lacks the monthly software update support similar to Apple, but using the support from this forum by the devs, I had achieved 1% power usage for every 3 hour idled = max possible 300 HRS.

Zacisblack said:
Android is made to constantly sync with the internet for updates and notifications. It's just the nature of the operating system to draw a lot of power because in theory it is a more powerful and complicated system. Also keep in mind that the battery inside an iPhone is huge and it is lithium polymer which lasts longer but is more expensive. These larger lithium polymer batteries are the main reason iPads and MacBooks get good battery life as well as their less powerful chip sets.
EDIT: Oh, and also iOS doesn't use as much RAM as Android so that also factors in to the battery life being generally better.
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Guys, there's a lot of android fanboy propaganda going on in here. I'm not against android, but don't automatically defend it like its your mama. The ifixit link below shows iphone 4 has 1420 mah battery as opposed to fascinates 1500 mah. They also both have 512 MB RAM. So that's not the issue.
Also, the Anandtech tests were done with phone on and active. So are you trying to explain android was at a disadvantage because it was "doing things in the background"? Like what? Any background process or sync service that kills your battery that bad is implemented horribly. iOS is doing the important stuff in the background too... maybe just not the ESPN or weather widget. But no one in their right mind believes those things are the problem.
http://www.ifixit.com/Teardown/iPhone-4-Teardown/3130/1

Scrappy1 said:
I appreciate the more open, easy to modify nature of android over apple. But to trying and explain the 2x worse battery life on android as arising from "better" processor and screen is wishful thinking at best... blatent android fanboy propaganda at worst. We need to learn how apple has optimized things, not turn an overconfident blind eye.
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Sadly, I am the opposite of an android fanboy as I would have gotten the iphone for verizon asap if I havent gotten the fascinate back at November. (Iphone on Verizon were still rumors back then). Also note that review was done in October last year. Battery life is probably much better now with cleaned roms and froyo.
If you really need to browse the web over 4 hours a day on your phone (use computer?), why not just get a larger battery or even get the iphone?
Edit: Hardware mean a lot in battery usage. After checking the iphones CPU, seems like its pretty much the same or similar to the ones of the fascinate, except slower clock speeds.

Kaze105 said:
Sadly, I am the opposite of an android fanboy as I would have gotten the iphone for verizon asap if I havent gotten the fascinate back at November. (Iphone on Verizon were still rumors back then). Also note that review was done in October last year. Battery life is probably much better now with cleaned roms and froyo.
If you really need to browse the web over 4 hours a day on your phone (use computer?), why not just get a larger battery or even get the iphone?
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Personally I don't get any better battery life from froyo ROMS. My wife's fascinate with stock eclair usually gets as many if not more hours of screen time as I get with superclean 2.9.2 and jt's EC10 w/ slight undervolt. Sometimes I get much worse battery life when I forget to activate one of the 10 workaround hacks still needed to fix the idle drain issue.
I use 2.5 hours of screen time daily quite often and find my battery exhausted before the day is over. Maybe I'm the rare case, but I doubt it.

Zacisblack said:
Dunno about you but my Fascinate get's poor signal compared to other phones. Also slower network speeds.
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Verizon is pretty much known for its slower network speeds compared to AT&T. I do get pretty good signal, overall.
Scrappy1 said:
Personally I don't get any better battery life from froyo ROMS. My wife's fascinate with stock eclair usually gets as many if not more hours of screen time as I get with superclean 2.9.2 and jt's EC10 w/ slight undervolt. Sometimes I get much worse battery life when I forget to activate one of the 10 workaround hacks still needed to fix the idle drain issue.
I use 2.5 hours of screen time daily quite often and find my battery exhausted before the day is over. Maybe I'm the rare case, but I doubt it.
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My battery life with imnuts undervolted kernel is much better than ones from previous EB01 kernels. I didnt find much difference between SC 2.9.2 ROM and Nameless V3 battery with the same kernel. I usually have around 75-50 percent battery life left from moderate usage. (Different from other people according to screen brightness and etc as stated in previous posts)

Kaze105 said:
My battery life with imnuts undervolted kernel is much better than ones from previous EB01 kernels. I didnt find much difference between SC 2.9.2 ROM and Nameless V3 battery with the same kernel. I usually have around 75-50 percent battery life left from moderate usage. (Different from other people according to screen brightness and etc as stated in previous posts)
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Under battery details, what is your display "time on" at end of your day? What is Max "time on" you ever got? Without those numbers its hard to say anything objectively.

Scrappy1 said:
Under battery details, what is your display "time on" at end of your day? What is Max "time on" you ever got? Without those numbers its hard to say anything objectively.
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Since its monday tomorrow, ill test the max time on. At the end of the day, or rather when I start charging it again/installing kernels or roms, time on is 14 hours and 17 minutes.

On my fascinate I unplug phone at 645 check face book and xda for about a hour on auto brightness. I then go to school and check pulse and xda many times totaling around 2 hours. The rest of the time is idle so after 2-3 hours of screen time and then 3-4 hours of idle during the school day I get home with 85-89% left im using dark revenge with imnuts undervolted kernel. Im no android fanboy I'm just posting my stats.
Sent from my SCH-I500 using XDA Premium App

Synergy battery life

I flashed myns synergy rom a couple of weeks ago and have been getting decent battery life. Today my battery life is blowing me away. Going on 11 1/2 hours since being unplugged with my normal usage and still have 22% battery left. Not heavy use by any means but moderate at least. I have never seen this kind of battery life on any other rom I have flashed. Any other synergy users seeing good battery life?
Sent from my PC36100 using XDA App

Yeah, I am a pretty light user but I can get two full days
Sent while standing in line at chipotle

I got decent battery life on Synergy, but its nothing compared to my battery life on my current CM7.1 setup. 20 hours of moderate use and I still have 48% on the stock battery.
Sent from my PC36100 using XDA App

Im at 54% now took it off the charger at 1030 am i set words with friends to not update and it seemed to help.
Sent from my PC36100 using XDA App

Neitmrh15 said:
Im at 54% now took it off the charger at 1030 am i set words with friends to not update and it seemed to help.
Sent from my PC36100 using XDA App
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There's a great battery guide in the Q/A section, all kinds of tricks. Might find the guide to kernels there too, another way to drastically improve battery life. The new GB kernel sprint released is garbage, try netarcy-toast "brand" kernels

No where near CM7's battery life, but still very much a daily driver. I usually plugged up at around 40% battery after at least 12 hours usage.

Pretty decent for a Sense rom.

I've had my Evo unplugged for the last 2 days and still sitting at 43%. This is with sending about 60 texts, facebooked, got on frostwire for a bit, made like 12 calls, played a couple of rounds of Angry Birds and been on wifi about 95 percent of the time. Never has this happened with other roms. And I have tried a lot. Only thing disabled was 4G(none in my area)

Unplugged Sunday at about 2pm, it's now Tues at noon, I'm still at 49%.
Light to moderate usage since then, about 200 texts, a few short phone calls, and about two hours combined of facebook and twitter. VERY good life for 2 days worth of usage.

I just recently switched over from CM7 to Synergy RC1... I loved when I went away from Sense to AOSP and was reluctant to switch back. But very pleased and battery life I can confirm is excellent for me as well. My only gripe now is that I'm getting the darn unread email count showing up on my home screen icons even though there is no unread emails. I have found online that it is a known issue and mostly seen in 2.3.3? Can anyone confirm that?
Thanks!

I have tried several sense 2.1+3.0 roms, Virus Kingdom revolution, and mik g I have never been more happy than once I began using Synergy. Heck I even devoted a whole post on Google+ about it. Very stable and my battery is ridiculous. I took my phone off the charger at 6:30 am cdt its now 12:15 pm and I'm at 78%. That's with heavy usage. Great job devs.
Sent from my PC36100 using XDA Premium App

Seems like people are getting better battery life now that its been out for awhile, aging like a fine wine

Neitmrh15 said:
Seems like people are getting better battery life now that its been out for awhile, aging like a fine wine
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When I first flashed I was goeeting okay battery life, the past few days has blown me away. I am used to seeing my battery drop like mad...but it does not do that anymore. I did nothing that I have not done on other ROMs, it just seems to work better after being on the phone a couple of weeks. This will be my ROM for quite some time now!

I'm really trying to get to the bottom of this display usage issue. My display usage stays extremely high compared to everything else. The more I use the phone, the higher it goes. Say if I use the phone a lot, it will be around 90%. If I barely touch the phone, it will go down to 50% but it's still a LOT higher than everything else. And it drains the hell out of my battery. If I barely use it I can get maybe 12 hours at most. If I do use it, I'll be lucky to get 7-8 hours.
It starting happening to me on MikFroyo but it didn't use to do it before. And now I'm noticing the same thing with Synergy. This is driving me nuts because it's keeping me from using my two favorite roms as a daily. I'll post three pictures. One is what my battery life/usage used to look like, one on MikFroyo 4.62, and one on Synergy RC1. I would really appreciate any insight to this.
Edit: It's only these two roms (that I've tried at least) that gives me this issue, and I think MikG if I can remember correctly. CM, Salvage-Mod, and a few other older Sense roms do not cause it.

This is with MikG 1.5, with my usual fairly heavy use.
AMAZING battery life, and 100% stable in my experience.
I have tried many, many ROMs and this one beats all.

no idea how people get battery life like that. i'm lucky to make it a 14 hours~ with similar usage

spanglmd said:
no idea how people get battery life like that. i'm lucky to make it a 14 hours~ with similar usage
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I was getting maybe 14-16 hours, then I removed the check mark from Always On Data, and the battery life doubled. (again, this is with MikG only.)

battery
ncfastls1 said:
I'm really trying to get to the bottom of this display usage issue. My display usage stays extremely high compared to everything else. The more I use the phone, the higher it goes. Say if I use the phone a lot, it will be around 90%. If I barely touch the phone, it will go down to 50% but it's still a LOT higher than everything else. And it drains the hell out of my battery. If I barely use it I can get maybe 12 hours at most. If I do use it, I'll be lucky to get 7-8 hours.
It starting happening to me on MikFroyo but it didn't use to do it before. And now I'm noticing the same thing with Synergy. This is driving me nuts because it's keeping me from using my two favorite roms as a daily. I'll post three pictures. One is what my battery life/usage used to look like, one on MikFroyo 4.62, and one on Synergy RC1. I would really appreciate any insight to this.
Edit: It's only these two roms (that I've tried at least) that gives me this issue, and I think MikG if I can remember correctly. CM, Salvage-Mod, and a few other older Sense roms do not cause it.
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let me start by saying that i used to think the same way your thinking untill one of the guys on the synergy post broke it down for me. it's simple, you keep thinking that the display% is an issue but it's only a number and it doesnt represent your actual battery drain. if you hardly use your phone, lets say u make a couple of calls, check some mail and browse the web. well the percentage is correct, your display was on longer than any other application. so it's going to be higher no question. the real question is are you getting good battery life or not? i'm on synergy RLC1 and after some suggestions that i upgrade my PRL, PRi, and wimax. which i did, now im getting great battery life even though my display percentage is still the highest application.

treedog5 said:
let me start by saying that i used to think the same way your thinking untill one of the guys on the synergy post broke it down for me. it's simple, you keep thinking that the display% is an issue but it's only a number and it doesnt represent your actual battery drain. if you hardly use your phone, lets say u make a couple of calls, check some mail and browse the web. well the percentage is correct, your display was on longer than any other application. so it's going to be higher no question. the real question is are you getting good battery life or not? i'm on synergy RLC1 and after some suggestions that i upgrade my PRL, PRi, and wimax. which i did, now im getting great battery life even though my display percentage is still the highest application.
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That is only the case if it's maybe a little higher than the rest of the things. It's a percentage of what has used the battery. When the display is at 90% and everything else is at 3% or less, there is a problem. And no, I am getting HORRIBLE battery life. Like I explained, on ROMs that don't have the extremely high display usage I can get 20-30 hours on one charge. The way the battery drains when I'm using it is extremely noticeable. The picture I posted that has been on for 14 hours with 48% left, that's how my battery usage should look. Granted I hadn't used the phone as much as normal that day, it still would be around the range of everything else.

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ncfastls1 said:
That is only the case if it's maybe a little higher than the rest of the things. It's a percentage of what has used the battery. When the display is at 90% and everything else is at 3% or less, there is a problem. And no, I am getting HORRIBLE battery life. Like I explained, on ROMs that don't have the extremely high display usage I can get 20-30 hours on one charge. The way the battery drains when I'm using it is extremely noticeable. The picture I posted that has been on for 14 hours with 48% left, that's how my battery usage should look. Granted I hadn't used the phone as much as normal that day, it still would be around the range of everything else.
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ok, may i suggest that you upgrade all PRI, PRL, wimax etc.. you know all that stuff and give it 2 days to see if that helps. it made a major difference for me..

How to get 36 hours on 1 charge

Alright, so I'm not a very heavy user on the phone but I've started getting 36 hours of use on my phone. I was blown the hell away! I usually would get a Max of up to 25 or 26 hours or so before this. Even then a full 10 hours extra is magnificent!
Here's what I've got going on:
Running MIUI 2.3.23 ROM with Bulletproof Add On pack
Using Tiamat 1.1.5 kernel
Juice Defender Plus on Advanced mode
Recaibrated my batter with Battery Callibrator app
Overclocking at 1039 MHz and underclocking at 184 mhz using SetCPU
After calibrating my battery I let the battery run out completely a couple of times and voila!
I took a screenshot of my usage statistics but I can't find the damn thing now. I guess you're just got to trust me on this. This was definitely worth sharing.
All the best!
Sent from my HTC Desire Z using XDA

How many hours of screen on time did you have at the end of that charge? The longest battery life i've ever had for my phone was actually 3 days and 3 hours with 5 hours of screen on time. I'm a light to moderate user and i achieved that result with CM7.2 RC1 without any tweaks.
I really like the look of MIUI but i don't find it to be as fast as it really should be. I get frustrated by the scrolling lag that is present in the settings menu and the fact that video playback is much slower in comparison to other ROMs. Web pages were also always SO much more laggy in MIUI for me than on Sense or AOSP based ROMs. That's my personal experience, i think i've just about given up on MIUI and Sense based ROMs. I haven't touched either of those for a while now.

I get 36 hours normally with the stock Sense 2.1 ROM and Unity V10 kernel. Overclocked to 1Ghz with the standard governor.
I use it quite lightly though, 10 to 20 SMS, bit of internet / Facebook and 30 mins FM radio in the morning. Also accounts sync automatically, mail picked up every hour, data always on. That was with the stock battery, with the Anker 1600 mah I get to 36 hours with about 30% to spare!
On a side note, underclocking below 245Mhz has been know to cause problems. Standby of Death (or Sleep of Death), and possibly dropped SMS etc.
Craig

craiglay said:
I get 36 hours normally with the stock Sense 2.1 ROM and Unity V10 kernel. Overclocked to 1Ghz with the standard governor.
I use it quite lightly though, 10 to 20 SMS, bit of internet / Facebook and 30 mins FM radio in the morning. Also accounts sync automatically, mail picked up every hour, data always on. That was with the stock battery, with the Anker 1600 mah I get to 36 hours with about 30% to spare!
On a side note, underclocking below 245Mhz has been know to cause problems. Standby of Death, and possibly dropped SMS etc.
Craig
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*sleep of death or SOD... i think S is for sleep not standby...
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i didn't mean to flame you, nor to mock you in any kind of way

thats quite insane @[email protected];;
i get about 13~15 hours of charge each time @[email protected];;
i use my phone mainly for texting and emails
no games on the phone...
i should give that a try, thats quiet insane ;o

lil-devil said:
thats quiet insane @[email protected];;
i get about 13~15 hours of charge each time @[email protected];;
i use my phone mainly for texting and emails
no games on the phone...
i should give that a try, thats quiet insane ;o
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Hehe the word you're looking for is "quite" and not "quiet(as in low sound)".

Ace42 said:
Hehe the word you're looking for is "quite" and not "quiet(as in low sound)".
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woops typo

magic_android said:
How many hours of screen on time did you have at the end of that charge? The longest battery life i've ever had for my phone was actually 3 days and 3 hours with 5 hours of screen on time. I'm a light to moderate user and i achieved that result with CM7.2 RC1 without any tweaks.
I really like the look of MIUI but i don't find it to be as fast as it really should be. I get frustrated by the scrolling lag that is present in the settings menu and the fact that video playback is much slower in comparison to other ROMs. Web pages were also always SO much more laggy in MIUI for me than on Sense or AOSP based ROMs. That's my personal experience, i think i've just about given up on MIUI and Sense based ROMs. I haven't touched either of those for a while now.
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I'm not sure how much screen on time I had. I'll give it a check next time I'm monitoring my performance.
Sense UI has been a pain for me from the moment I started. I tried CM 7 but it had a bug where it wouldn't vibrate when I got a message unless it was in silent mode. Since I SMS quite a bit, it was quite annoying. I tried a couple of Virtuous ROMs too but they were glacial in their speed. Couldn't stand the lag.
I find MIUI to be the perfect balance between features, UI and speed. It might be a tad laggy in some places, but on the whole, it looks great, works great and doesn't give me problems in the parts I use the most. It doesn't seem quite as laggy with me as you seem to describe it. But anyhoo, for the first time since I bought my DZ, I feel like I have a good phone that I can rely on.
Thanks for your comments, man.

craiglay said:
I get 36 hours normally with the stock Sense 2.1 ROM and Unity V10 kernel. Overclocked to 1Ghz with the standard governor.
I use it quite lightly though, 10 to 20 SMS, bit of internet / Facebook and 30 mins FM radio in the morning. Also accounts sync automatically, mail picked up every hour, data always on. That was with the stock battery, with the Anker 1600 mah I get to 36 hours with about 30% to spare!
On a side note, underclocking below 245Mhz has been know to cause problems. Standby of Death, and possibly dropped SMS etc.
Craig
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WOw! Really? Stock giving 36 hours! That's pretty sweet man. Never happened to me.
And thanks for the advice on the underclocking. Maybe I should up it a notch, just in case.

lil-devil said:
thats quite insane @[email protected];;
i get about 13~15 hours of charge each time @[email protected];;
i use my phone mainly for texting and emails
no games on the phone...
i should give that a try, thats quiet insane ;o
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Click to collapse
Go for it bro! And let me know if it works for you.
Right now, I've already hit 33.5 hours and have just hit 15% battery. And this is including a few games of Angry Birds. woohoo!

lunarplexus said:
After calibrating my battery I let the battery run out completely a couple of times and voila!
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Letting the battery drain to shutdown is not a good idea. Not good for long term life of Li ion batteries. Also, its unlikely, but possible that draining to shutdown will render the battery unable to take a charge. Fail safes on the device and battery are supposed to prevent this in theory, but in reality they don't always work. Several reports on this device of people that drained to shutdown, and then couldn't charge their battery.
The battery meter is not accurate enough to necessitate draining to zero. Just drain to 10 or even 20%, charge to full, repeat a couple times. No value added whatsoever to draining to shutdown.
I have easily gotten 48 hours+ with light usage on various ROMs, including ILWT and Virtuous Unity (which is Sense 3, and claimed by some to be a "battery hog"). This is with Bluetooth and WiFi always on, and no special battery calibration or battery saving apps.. So many things affect battery life. But my personal hunch is that the ROM, clocking, radio, and data reception in your area (and of course usage) have more to do with battery life than other factors. And with radio and reception being the really big drivers.

That's definitely very helpful. I've always heard that rechargeable batteries are supposed to be drained completely and charged at least periodically to extend its life. Your proposition is contrary to this belief but then, I don't know that much about the battery and those aspects of the device itself to be able to refute what you're saying. Best to be on the safe side though.
Current record for my battery is 42 hours as of today. I'm pretty thrilled. My device was giving at least 10-15 hours less before I made these customisations. So I feel it probably has helped. However, there are a lot of factors at play, as you said.
Thanks for the response!

lunarplexus said:
That's definitely very helpful. I've always heard that rechargeable batteries are supposed to be drained completely and charged at least periodically to extend its life. Your proposition is contrary to this belief but then, I don't know that much about the battery and those aspects of the device itself to be able to refute what you're saying. Best to be on the safe side though.
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There are various types of rechargeable batteries with very different behaviors. What you mention is known as battery conditioning, where you periodically drain to (nearly) empty and charge to full, and is recommended for older type NiCd (nickel cadmium) batteries. This is to avoid "memory effect" where the battery will remember how much was discharged in past cycles, and not deliver any more than demanded before. Kind of a "use it or lose it" principle.
Lithium (Li) ion cells (the type on most smartphones) do not suffer from memory effect. And full discharge cycles actually hurt the long term life of the battery. Charging frequently is actually the best for this type of bettery. But a couple nearly full cycles are needed to properly calibrate the battery meter on the phone.
If you want to educate yourself on the Dos and Don'ts of batteries, this website is a good one:
http://batteryuniversity.com/