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Hi!
I'm looking for an application, that quickly kills my battery if it's low, so I can do a full charge to improve battery life.
Something, that I launch, I put my phone on the desk, have a tea meanwhile, and it's drained! Something, that turns on wifi, do some downloading, browsing, video playing, or whatever, and does it automatically without supervision. Does such app exists?
I'll second this, it'd be nice to have an app do this for me and maybe even give us some interesting stats from it?
Sent from my mind using telepathy
why would you want an application to destroy your battery?
Adevem said:
why would you want an application to destroy your battery?
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Apparently if you do a full discharge the battery life will be longer.
Soniboy84 said:
Apparently if you do a full discharge the battery life will be longer.
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not really, you should avoid deep discharges...
Byr0x said:
not really, you should avoid deep discharges...
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+1 If you had been reading around...you would know Lithium Ion batteries are designed to 'maximize' their efficiency within about two weeks of 'top up' charging. Cycle-charging is generally considered a less efficient method of charging. You will need to 'TopUp charge' this means charging as much and as often as possible. If your battery is at 89% for instance and you find yourself near a socket, plug your adapter in and charge it up to 100%. After a few days of doing this you will notice an improvement in the life of your battery when you are not able to charge.
Actually,,,
It is not matter of running your battery down to 0%.
It is ok to run it down till phone does to power on itself.
As you know battery is a single cell Li-Ion @ 3.7v
when it is fully charged it's peak voltage is 4.2v
By the time battery mah is drained down (galaxy s has 1500mah)
battery voltage should be around 3.2~3.4v range. this will depend on condition of the battery.
Battery should never go below 3.2v personally, 3.4v is my cut off.
If your battery voltage goes below 3.2v... it's time for a new battery as this kind of voltage will damage your battery, either it will leak or puff (battery will actually get bloated.
Phone has a voltage cut off so it will not over charge over 4.2v but if it does, it will likely start to smoke and catch fire.
I am sure anyone who is into electric Radio control knows all about these batteries.
Oh btw,,, long time storage voltage should be 3.8v
You'll be asking how do I know what voltage my battery is... I personallly don't know of any apps but GPS Status actually shows the temperature & voltage of your battery.
Soniboy84 said:
I'm looking for an application, that quickly kills my battery if it's low, so I can do a full charge to improve battery life.
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First, take into consideration the comments above regarding deep discharge of your battery...but, to answer your question, there's an app in the market place called 'Battery Refresh' which attempts to drain your battery quicker.
Well if it's all true above than its a good sign, and thanks for the info! I'm not an expert but in the old times I remember batteries had to discharged completely, maybe even if it's just a few times. Now somebody can also tell me why my battery is discharging when it's plugged in the socket with original charger? All I do is using the internet, and has. nimbuzz and a live wallpaper on. :S
You could probably enable the GPS/BT/WIFI ( connected to a router ) and run the interactive mode on Neocore benchmark.. that should enable most of the hardware components on the phone and stress the GPU/CPU.. probably would see a 25% battery drain for every 35-40mins.
I don't know what has changed with the batteries but as far as I know...
it is good to discharge new batteries 3~4 times down until phone does not power on.
Like I have said... it's about the voltage of the battery, not whether battery has any juice left in it or not.
These batteries have a protective circuitry so that it will not charge over 4.2v,
also as for discharge it is usually down to 3v but usually with a charger/discharger units that can control mah/volts/amps. With typical usage from the phone, it'll likely be discharged down to about 3.2`3.4v. Which is very safe.
You can do whatever you feel but I personally do this to every batteries I have for phone and every batteries I use with my radio controled cars.
For my RC cars, I have about 6 batteries ranging from 1cell to 3cell LiPo packs.
Each cell is 3.7volts.
But you don't have to force discharge and hurry the process.
Just use the phone normally and let it run down to nothing... than recharge to full peak.
Than again, choice is yours.
I'm looking for the same kind of applications. It's very useful for recalibrating your battery. Wipe the battery history then do a full cycle.
Sent from my GT-I9000 using XDA App
The old saying in RC Helicopters was that the difference between discharging 50% and 100% was the difference between getting 500 uses and 5 uses.
You should certainly avoid ever fully dischaging any lithium based battery.
Older nickel batteries (Ni-cd, Ni-MH) required full dischage cycles to get rid of memory the the metals pertained, lithium-ion and lithium-ion-polymer not only do not require this; but doing so will damage them.
And yes, the older ipods came with Nimh cells and they did reccomended full discharge cycles.
Im pretty sure the idea was to try not to let the voltage get below 3.5v/cell and never below 3.3. Dead flat is 3 or 2.85 which is when the battery simply cant produce any real current. The phone should have circuitry though to not let the voltage get above 4.25 or below ~3.5.. If the low battery warning comes on, set the brightness to dim, and stop any activities (unless its a phone call, its not THAT important but if youre playing games or watching a movie...) until yo can get to a charger.
By the way this being my first post (i meant to ages ago) Ill just mention that my galaxy S came with recovery mode and download mode Enabled, i got it just last month, Virgin network, Australia.
draining the battery fully was for the older battery types, new age batteries are not recommended to be drained fully
Thanks!
One more question:
I'm using my phone as a desktop replacement, because I don't have Internet at the moment. I'm using xda, dolphin browser and listening music. It's plugged into the mains and it's not charging. It says 49%, and stuck there. Is it possible I'm using too much battery?
Sent from my GT-I9000 using XDA App
Ok, this will be my last reply.
Fully draining or not is not the issue.
In RC, most modern electronic speed controllers have a built-in battery cut-off which will cut off power once it reaches certain voltage. Because OVER-draining battery without cut off can damage/kill/ or make it unable to hold voltage.
Also, once the battery voltage reach certain point (still within safe range) you will notice the motor being powered slow down. This would also be a recommended time to stop.
Cellular phones have built in safe cut off aswell. As I have said I have measured my battery after being full drained, voltage was around 3.55v or so. Which is very normal considering voltage of the battery is 3.7v only with peak charged voltage of 4.2.
Now, Someone mentioned that fully draining your battery repeatedly will dramatically reduce battery life.
Reducing life of the battery has more to do with the amount of AMP used to charge the battery. Faster charging is usually reduce battery life dramatically.
And without hobby grade chargers, you won't be able to control this charge rate.
Slow charge is better but charging at 1C rating is the normal. But charging at 1C means regardless of batteries mah rating, battery can be charged in about 60 minutes. As we all know, our phone batteries doesn't charge from zero to full in 60minutes, right? just like most of the portable devices it takes nearly 3~4hours to fully recharge. Last 20% usually takes longer because Amp provided to charge slowly lowers. That is why.
For example, if Galaxy S battery is 1500mah, than 1C charge rate is @ 1.5amp.
If battery is 3000Mah, 1C is 3.0Amps and so on.
So like I have said over and over before, drain your battery away if you have to by choice or not. Just use it up, I will bet you your battery will last longer than you keep your phone.
U should avoid draining ur battery to 0% (witch is not possible with ur phone. When it shows 0% the charge of the battery is at 10-15%). Li-ion batteries dont have a memory effect, so it would be usless discharching it completely anyhow. Best for sgs battery is charging it before it goes under 50% that will improve the lifetime of ur battery (not how long it lasts before u have to charge but how long it lasts before u have to go and buy a new one)
How do i know? Simply cause i had to learn that a few weeks ago for the job im learning.
@xxgg: yes ur right, it wont really damage the battery if u runn it till thr phone shows its empty. But using an app to drain battery as quick as possible will, since the app forces the battery to give out more Ampere than its built to give out
Sent from my GT-I9000 using Tapatalk
So I've just recently rooted my Incredible (about 4 months now) and I bought a 3500 mAh battery off ebay for about 12 dollars around the same time. I used to get really great battery life with it. About 2 full days without having to charge. I'm not sure if the battery's getting worse or if this is normal battery depletion for all you other Incredible users.
I'm running CM7 nightly 258, the latest one, and have the newest Incredikernel, just flashed the kernel about a week ago. I'm still pretty new to the rooting game. Before I flashed the kernel I just had the normal kernel for CM7. I was getting about 10 hours of battery before and tried the battery calibration, but I think I did it wrong and got maybe 8 after that.
So I tried running the Incredikernel and was getting between 12-20 hours of battery life after that. My usage is at least 2 hours of Pandora a day using 3g, sometimes 3-4 hours. Moderate to high internet usage, rarely make calls, and moderate texting. I'll sometimes play some games, but that probably equals about half an hour's worth per charge, an hour at most. I'm also running juice defender, too.
With the new kernel I have the smartassv2 governor and have my processor speed between .128-1.113ghz. I think I did the battery calibration the correct way this time. I bumped charged it until it was completely charged. Then let it completely drain till it shut off yesterday. It lasted about 24 hours with the normal usage I have stated above. I then turned it on 2 more times to make sure the battery was completely drained. I took out the battery for a couple minutes and then put it back in. Then I let it charge off until the light turned green. I then booted into recovery and cleared battery stats. Rebooted the phone until it was completely started and then unplugged the phone.
I let the battery drain completely again and it lasted another 24 hours with the same usage I have stated above and I'm now charging again. I turned it back on while it's still charging though.
Is this normal battery life compared to you guys. Remember I have the 3500 mAh battery, but it was off ebay (stated new though). If you could also post you're battery usage and how long your battery lasts, as well. Also any other important info like, kernel, ROM used, CPU speed, etc. I'd like to compare to see how everyone else is doing. Thanks again.
I'm on CM7 right now with the latest Incredikernel. I use the Incredicontrol app to undervolt and set my frequencies from 128-921 Mhz. I have a standard battery and with light usage I get a day and half off a single charge, moderate/heavy usage it'll range from 12-20 hours.
You use any powersaving apps like Juicedefender? Also what do you classify as moderate/heavy usage? What battery governor do you use? Did you do a battery calibration?
graymonkey44 said:
You use any powersaving apps like Juicedefender? Also what do you classify as moderate/heavy usage? What battery governor do you use? Did you do a battery calibration?
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I don't use Juicedefender or any power saving app like that. Moderate/Heavy use I mean texting all day making calls, on the internet, playing various games. Don't get me wrong there have been times that I kill my battery in less than 10 hours, but that's when I'm on my phone non stop or on Netflix. For a governor I use smartass, not smartassv2. I did calibrate my battery once, last year when I got the phone. To me what makes the biggest difference is undervolting with the Incredicontrol app. And the phone runs much cooler.
I might try undervolting to see how long that lasts. 1.113 ghz might be overkill, but I have noticed a performance increase. The majority of what kills my battery is the display though when I check out my battery stats. It's always at around 60%. I have the amoLED screen as well.
graymonkey44 said:
I might try undervolting to see how long that lasts. 1.113 ghz might be overkill, but I have noticed a performance increase. The majority of what kills my battery is the display though when I check out my battery stats. It's always at around 60%. I have the amoLED screen as well.
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I always dim my screen as well. If its on the highest setting it'll kill a lot of your battery quick. I used to have my phone over clocked to 1.113 GHZ but after testing different things out I noticed if I lowered it under 1 GHZ there was not much of a diff. For undervolting I dropped the number by 25 at a time until I noticed the phone lagging. hope this info helps.
I have my screen on auto brightness. It's usually at a low bright setting unless I'm outside. I'll try out undervolting, too. I have noticed the phone does run a little bit snappier with the 1.113 ghz though, but I can live with it being a little less if it means better battery life.
I don't know if it's my battery or not though, but everytime I unplug it, it's been going right back down to like 89% within minutes. I understand that you can't fully charge the Li-ion batteries all the way, but I don't know if I'm fully utilizing the battery to it's full potential since it is 3500 mAh.
I might go back to my standard battery and see how it compares. Although I do like the feel of having the extra thickness with the bigger battery.
graymonkey44 said:
I have my screen on auto brightness. It's usually at a low bright setting unless I'm outside. I'll try out undervolting, too. I have noticed the phone does run a little bit snappier with the 1.113 ghz though, but I can live with it being a little less if it means better battery life.
I don't know if it's my battery or not though, but everytime I unplug it, it's been going right back down to like 89% within minutes. I understand that you can't fully charge the Li-ion batteries all the way, but I don't know if I'm fully utilizing the battery to it's full potential since it is 3500 mAh.
I might go back to my standard battery and see how it compares. Although I do like the feel of having the extra thickness with the bigger battery.
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Charge it while its off or get an external charger. That's the only way to get a true 100% charge from a phone battery.
-My life is a shooting range, people never change-
Yeah, I have been bump charging as of lately(about a month), but I hear it decreases the life of the battery so I've been holding off on doing that.
With my latest charge, I've gotten 1d 14h 49m 20s, with moderate usage which I think is pretty impressive. It's still at 5% and I'm going to let it completely discharge and then charge it off again until the light turns green.
Edit: It lasted me right around 40 hours all together. It shut off so I decided to turn it back on and see how long it would last again. It was at 2% when I turned it back on and I got another half hour out of it which led me to the 40 hours. Do you think that's good battery life with a 3500 mAh battery?
I am not here to complain about battery drain or anything of that nature, but rather leftover charge after the battery drains out.
Whenever the battery runs its course and runs out of juice, if I wait anywhere from a minute to 5 minutes after the battery has died the phone will turn back on briefly, displaying 1% again before draining out maybe 30 seconds after. The battery will usually have enough juice to do this twice before I have to plug in my AC cord to charge the battery back up. My concern is that because the battery is draining out before it actually runs out of juice, I am missing out on anywhere from 1 to 5% of battery. I calibrated (I use the Battery Calibration app) my battery and do so per ROM, I have tried 100% to 0% drains, as well as going through cycles of not letting the battery drop below 20%. This problem has been present on everything single ROM I have used (stock included; now on CM10.1 March Experimental)
Is anybody else having this problem or know of a solution? Is it just my battery specifically or is this a common problem? I do realize that a battery cannot completely have a true 0 charge in order to still function or it would not re-charge, but I don't think it should have enough backup juice to briefly re-boot the phone twice after a displayed 0%.
Lithium ion chemistry prefers partial discharge to deep discharge, so it's best to avoid taking the battery all the way down to zero. Since lithium-ion chemistry does not have a "memory", you do not harm the battery pack with a partial discharge. If the voltage of a lithium-ion cell drops below a certain level, it's ruined.
rquiett said:
Lithium ion chemistry prefers partial discharge to deep discharge, so it's best to avoid taking the battery all the way down to zero. Since lithium-ion chemistry does not have a "memory", you do not harm the battery pack with a partial discharge. If the voltage of a lithium-ion cell drops below a certain level, it's ruined.
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Ok, so ideally it's best to keep the phone from deep charging and deep drains. That said, if it happens that there is not an outlet around or I don't have my AC cable on hand, should the phone not be shutting off without leftover charge still available?
iBricearoni said:
Ok, so ideally it's best to keep the phone from deep charging and deep drains. That said, if it happens that there is not an outlet around or I don't have my AC cable on hand, should the phone not be shutting off without leftover charge still available?
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It is designed to shut off when the battery is low but not to the point of damaging it. By turning it back on multiple times after that point you may cause damage to the battery
rquiett said:
It is designed to shut off when the battery is low but not to the point of damaging it. By turning it back on multiple times after that point you may cause damage to the battery
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Alright, it's all by design then. Thanks for taking the time to provide me with that bit of knowledge.
In that particular case try to have the phone last as much as you need it.
Either turn it off or leave it charging whenever you are not using it if battery is below ~half.
Also deep charges will not harm the phone, as the circuit opens when it reaches a full charge.
Slazur said:
In that particular case try to have the phone last as much as you need it.
Either turn it off or leave it charging whenever you are not using it if battery is below ~half.
Also deep charges will not harm the phone, as the circuit opens when it reaches a full charge.
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Sure, I will try out this recommendation and see if it makes any difference.
I recently bought a S4 Mini (i9195) and I noticed it has a decent battery life.. until 5%. When the battery reaches 5% I get a huuuge drain.. it's like, draining to 0% in about 1 minute. And it happend all the time. Whats wrong with the device? :crying:
I'll try that, haven't noticed what happens at 5%.
Im shure mine has 3%/hour battery drain over night so I'll spect from 5% at least one hour at idle
Sent from my GT-I9192 using Tapatalk 4
Doesn't happen to me but I've experienced that with my old phones. Always happens when I charge my phone when it's far from empty and unplug it when it's far from full, multiple times.
Like I used to plug it in whenever I could find a power source so that I can play my games throughout the day. And I usually have to leave halfway for other things so I'll unplug it when it isn't fully charged yet.
Then after a while I noticed that the battery was draining quickly when it was at lower percentages but draining slower at higher percentages.
It slowly became more constant as I learnt to charge it when it was completely dead and unplug it only when it was full. (I bought an external battery pack USB charger to help with this)
I think this calls "memory effect" or?
Lithium batteries do not have memory effects anymore.
If the phone is new, try charging it completely and discharge it completely a few times. If it then still persists, the battery is probably not calibrated right.
The real size of a battery is not as stated on the cover 1900, but varies around it, depending on the manufacturing. Similar to CPUs, that get tested and then categorized for certain speeds.
So could be that you have a less optimal battery and therefore the calibration to 1900 as expected by the system is not right. So when you see 5% you are already much lower in reality.
I am new to Android, so I do not know if there are battery calibration tools out there, but I guess so.
Greetings
Christian
Solved my battery drain by updating google maps to latest version
Sent from my GT-I9195 using xda app-developers app
Nope, the system will just shut down at about 5% to prevent a deep discharge of the battery which is really bad for li-poly/li-ion batteries.
Is seems logical on the surface. Will fast charging mean discharge will also be faster?
Did you ever use a 'non quick'/ normal charge adapter? Did you find that the battery charge lasted longer?
At night I use a normal charger. The fast charger I use only when the battery is low and I'm in a hurry.
I did not notice any difference in discharge time.
The phone discharges fast when using it heavily (gps, games and browsing with FF), but still gets me through the day. With light usage (messaging, calls, email, little browsing) I have like 50% battery left after 12 hours.
Sent from my ASUS_Z00AD using Tapatalk
i don't think that is the case. discharging based on battery, charging based on charger circuitry. of course both contact must withstand the high current pass through before breakdown. ( if you want to know more, read up on current and its effect on materials, size, width)
Someone did a charge log before on ze551ml on the full charge and each software module, hardware drain comparison, he found out that even though written 100% on the phone, the actual charge did not hit 3k Mah. seem like our lipo battery is not really 3k worth therefore you see a fast draining effect from 100% down to somewhere 80~90ish?
this is true on my side, i know some apps is not coded for optimization and efficiency, for this can be felt by handset being warm because heat is a form of wastage (losses) in engineering term. however some apps that does run optimised also exhibit fast draining effect.
more testing need to conduct in order to conclude that guy's theory.
Atleast I experienced faster discharging in case of fast charging as compared to normal charging.
I have not experienced fast discharging while using the BoostMaster Quick Charger. What you should take a look at are your battery stats, Screen on Time, usage scenarios and signal. Check wakelocks too as that can damper your battery life throughout the day.
After using Turbocharging in Moto X Style i can confirm that fast charging will result in faster discharging, also the battery heats up while turbocharging, and i noticed 20% less standby time (at least 20%) when i use turbocharger. If i am not in a hurry i always use overnight charger.