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
Do beautiful widgets and WidgetLocker use too much battery power?
The battery need to be charged frequently, do you have any good idea for battery saving? THANX
how long before you need to charge? i used to have bad battery life, around 12-15 hours, on stock ROM, but after flashing to LiquidArc by Jboogie3, battery can last 2 days before charging
i ask this because my battery stats have gone dumb dumb on me. first i had a 40% instant drop when rebooting and since 62% charge on my phone Battery Life how been showing 4150mV. it may fructuate 50mV (i think it keeps topping battery off and then when it goes down a tad i tops off again ).
So my question is then is my battery already fully charged and my battery % is off and if so why would it keep slowly going up when the mV's are no longer going up?
fyi i trust this battery widget. used it in 3 phones for 2 1/2 years. hasent update recently either
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When your battery is fully charged it is generally around 4200mV. It seems like your battery is not calibrated. I recommend the battery calibration app. Search it in the market. Very easy to calibrate. Just charge till its at 100% and close to 4200mV and then hit calibrate.
Also, to monitor your battery stats (voltage, %, mW usage) I recommend the battery monitor widget. It shows graphs of your mV as well as your battery percentage over time.
Thanks bro, I apreciate the indepth answer. I thought it was 4200 but I gotta be sure u know
I Touchstone modded my phone, but I'd like to see how fast it is charging by. Elixir 2 doesn't work (well, doesn't display battery current) and one or two other apps didn't work either.
Any info would be great
it's not possible on this phone, it doesnt output current readings.
but for any devs out there, looking thru kernel drivers you can see there is in fact a charging current variable, but it's just not output into userspace. would be awesome if someone could bring out access to it so at least we could see current readings during charging.
You can use Battery Monitor Widgets (Market Link: https://market.android.com/details?id=ccc71.bmw&hl=en) to see an approximation of current used or charged in intervals.
The first reply is correct in that the GNex does not report current use. But we can see available mAh on the battery. By comparing the battery's remaining mAh in intervals you can see approximately how much battery is used or charge in the interval.
Beware though, the app is known for causing wakelocks and can cause your battery to drain unnecessarily.
After doing a full discharge and a full recharge. My battery is doing amazing. I don't know if I should be doing this every day? What do you guys think. I thought it was April 5th update but it was not. Any suggestions?
bradmill08 said:
After doing a full discharge and a full recharge. My battery is doing amazing. I don't know if I should be doing this every day? What do you guys think. I thought it was April 5th update but it was not. Any suggestions?
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You basically let the system calibrate the battery, which I do as well from time to time. I typically go to about 20% then charge to 90-100% Seems to work fine for me :good:
bradmill08 said:
After doing a full discharge and a full recharge. My battery is doing amazing. I don't know if I should be doing this every day? What do you guys think. I thought it was April 5th update but it was not. Any suggestions?
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Badger50 said:
You basically let the system calibrate the battery, which I do as well from time to time. I typically go to about 20% then charge to 90-100% Seems to work fine for me :good:
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I must admit, I still do this every now and then. Though it's up for debate as to the necessity to do it, but my OCD tells me too - especially after flashing a new rom. I'll then let it fully discharge, reboot a couple times until its completely empty, give it a full uninterrupted charge then use a battery calibration app to wipe clean the battery stats app. As mentioned, there'll be some people (rightly or wrongly) who'll disagree with this method with arguments saying that its bad for the battery and/or that the android system is intelligent enough to handle this by itself, which may indeed be true (e.g. perhaps not supposed to drain fully at risk of this being bad for the battery etc.). Though having saying this, I not only feel better for doing so but I, across many devices with this Pixel 2 XL included, experience great battery life throughout the lifespan of me having it.
I don't use any battery calibration apps or anything I don't root my phone at all. I used to do rooting but with stock Android it works awesome without rooting in my opinion.
Wow my phones battery life is amazing now after letting it completely die and charge back up. I am at 90% after almost 6 hours!
Isn't this a bad practice for battery health?
Prattham said:
Isn't this a bad practice for battery health?
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Yeah, it's not recommended to let Li-ion batteries drain completely too often or keep them charged at more than 80-85% for extended periods of time without using them. That's pretty much the reason why phones aren't fully charged when you buy them.
Hi
Battery technology and charging circuits are pretty advanced these days that it should not make any difference doing a full charge cycle, which if anything is not good for the battery. The battery capacity with lithium chemistry is mostly measured by voltage, it's not very precise at full capacities, but as the battery level falls it becomes a more reliable indicator.
I suspect all that is happening is on a full charge cycle, the stresses involved to the battery and effort of the charging circuit pushing a high current into it, is causing the battery voltage to peak higher and remain a bit higher whilst it is full. This has the side effect of causing the battery gauge to read higher for longer, however it will simply even out and drop more quickly as the battery capacity falls, the end result is it doesn't run for any longer, put just feels like it is doing better as the top end of the gauge isn't reading a drop quite as quickly.
The other thing that can cause a seemingly better battery drain is at what time we disconnect the charger when it reads 100%. Typically it will read 100% before it has actually finished charging. This happens as to get from a real capacity of say 90% up to 100% takes a longer time, and it's all about the impression of fast charging these days. Also when the phone is left charging, it will charge and then discharge, then top up, then discharge until its off the charger, as you can't leave the battery continuously trickle charging, and so that it doesn't look broken if we've left it on charge all day and it only reads 95% because a couple of hours ago it stopped charging and is in a run down phase before topping up again, the gauge is set to read 100% even if it is lower.
In other words there is extra capacity in the battery above what we are told is 100% and depending on when we take it from the charger, we might have 105%.
Regards
Phil
Thank you all for your answers! They are really helpful