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
To maximize your battery, please add a setcpu profile for charging.
Set the frequency as low as it can when charging.
Reason:
The battery will stop charging when it gets to a certain positive voltage input.
If we set the frequency high, the battery will stop earlier as the consume it bigger than low frequency.
Perhaps you can further explain this. Is the voltage measured at the battery? If so, how does the battery drain affect that measurement? Does changing the CPU voltages affect this? Is this an effort to increase battery capacity? Or increase charge rate?
Tubes6al4v said:
Perhaps you can further explain this. Is the voltage measured at the battery? If so, how does the battery drain affect that measurement? Does changing the CPU voltages affect this? Is this an effort to increase battery capacity? Or increase charge rate?
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The voltage is by the formula, Input - output.
If it is positive, the battery keep charging.
However, not all positive voltage keeps charging as at some very low voltage the battery will stop charging.
So, keep the voltage as high as it can to longest the charging cycle, and you phone can get highest capacity.
Hey everyone. I am coming from my Nexus S to a new Galaxy S3 on CM10.1, and I was wondering if there was an app for the S3 that would allow me to set the maximum for battery charging. NSTools for the Nexus S allowed me to do this, and I would usually set the max to 97 or 98 percent. The setting under NSTools was called Battery Life Extender, I believe.
Is there anything that can accomplish this same task for the S3? I don't like having my phone charge all the way to 100% every single night.
No there isn't and letting it charge to "100%" isn't going to do it any harm. If you remember all the talks on the NS forum, the battery doesn't really charge to 100% unless you bump charge.
CrackerTeg said:
No there isn't and letting it charge to "100%" isn't going to do it any harm. If you remember all the talks on the NS forum, the battery doesn't really charge to 100% unless you bump charge.
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Ah, okay. So 100% on the battery counter doesn't literally mean that the battery is being charged to its absolute maximum capacity? Does the software still kick in and stop the phone from overdrawing charge once it's full?
Yup. If it did it for our old crespos, it definitely does it for this beast.
above 4.2v is bad
This app you asked about is very important. Charging a battery more than 4.2 volts dramatically shortens its recharge cycle numbers. I measured my battery volts, found that 4.2 volts is achieved around 85%.
An app that would prevent charging over 80% will be great.
Thnks
So I have a zerolemon 10000 mah battery for my note 3, I just switched to cm11 and noticed the battery percentage meter was going wacky and wasn't being accurate (eg. It would jump up 10 percent after a reboot or last hours on 1 percent with heavy use) so I followed the instructions for fixing it, I let it drain completely and then I charged it to 100 percent while the phone was off, then I turned it on and charged it again until it showed full just like it said to do in the instructions, after this I went into my battery status app just out of curiosity, there I saw that the battery had 4250 mv , I am alarmed by this because the battery is only supposed to be 3.9 voltz, is my battery damaged? I always thought that the batteries have circuits in them to prevent overcharge then how come it overcharged my battery??
Sent from my SM-N900T using XDA Free mobile app
Actually battery voltage is a little bit tricky:
first of all it will show higher with no load than with load on it and higher the load, lower the voltage, full charge or not.
Secondly for example my original phone battery is rated 3.8v, but at full charge will be higher than 4 volts.
I don't remember how Li ion batteries are rated, but for example NiCd are rated at 1.2v, which would be the voltage the battery shows when under full load, under no load the voltage will be more than 1.5v and if that NiCd battery shows 1.2 v under no load it usually means it's close to being completely discharged. I don't have specs for your particular battery, but I'm sure fully charged with no load will show more than 4v.
Since the battery has protective circuit, it should still be within specs, before the damage occurs, so I don't think you should worry too much, however if you were doing this all the time, I'm sure you will shorten battery life.
Full charge for lipo is about 4.2V. So the battery is not overcharged. The batteries have a protective board on them, and the charge control on the phone won't allow overcharging either.
So I charged my Note 7 (N930F Exynos) up to 100% and used an app called GSam Battery Monitor to read the voltage. It read 4.37v. I'm not a battery expert but unless it's one of those HV cells it should be around 4.2v correct?
If the reading is just inaccurate it should swing above and below 4.2v between devices when charged to full capacity, right?
So... Would anyone like to download the app and post their voltage reading and phone model after charging to 100%? It would be interesting to see the results... And get an average.
If anyone knows any better or thinks this is stupid for whatever reason let me know.
azzicles said:
So I charged my Note 7 (N930F Exynos) up to 100% and used an app called GSam Battery Monitor to read the voltage. It read 4.37v. I'm not a battery expert but unless it's one of those HV cells it should be around 4.2v correct?
If the reading is just inaccurate it should swing above and below 4.2v between devices when charged to full capacity, right?
So... Would anyone like to download the app and post their voltage reading and phone model after charging to 100%? It would be interesting to see the results... And get an average.
If anyone knows any better or thinks this is stupid for whatever reason let me know.
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Some Lithium Ion batteries can be safely charged to 4.35v. Samsung and LG both make such cells.
Chippy_boy said:
Some Lithium Ion batteries can be safely charged to 4.35v. LG make such cells.
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Fixed it for you.....
Okay so I found an image of the Note 7 battery. (iFixit)
Nominal Voltage: 3.85v
Charge Voltage: 4.4v
So it's supposed to charge to 4.4v. So 3.85v (And I guess 4.37v) is normal under load? Does that mean my readings are normal?
Thought I was on to something.
56K said:
Fixed it for you.....
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Fixed it for you....
http://www.orbtronic.com/batteries-...pacity-li-ion-rechargeable-18650-battery-cell
Description
Samsung Li-ion 3000mAh (3Ah) 18650 high capacity cell.
This battery rechargeable cell can be charged to 4.35V
Flat top.
Nominal Capacity 3,000mAh
Nominal Voltage 3.78V
Charge Method Constant Current / Constant Voltage
Max. Charge Voltage level (V) 4.35V
Charge Current (C) 0.5C (1.5A)
Min. Discharge Voltage level (V) 2.75V
Model: ICR-18650-30B (Newest Rev. B)
Dimension (mm) 18mm x 65mm
Max Weight (g) 48g
Built-in (internal) Safety Functional Layer
New! Latest (Rev. B) production release is in stock
Made by Samsung
Chippy_boy said:
Fixed it for you....
http://www.orbtronic.com/batteries-...pacity-li-ion-rechargeable-18650-battery-cell
Description
Samsung Li-ion 3000mAh (3Ah) 18650 high capacity cell.
This battery rechargeable cell can be charged to 4.35V
Flat top.
Nominal Capacity 3,000mAh
Nominal Voltage 3.78V
Charge Method Constant Current / Constant Voltage
Max. Charge Voltage level (V) 4.35V
Charge Current (C) 0.5C (1.5A)
Min. Discharge Voltage level (V) 2.75V
Model: ICR-18650-30B (Newest Rev. B)
Dimension (mm) 18mm x 65mm
Max Weight (g) 48g
Built-in (internal) Safety Functional Layer
New! Latest (Rev. B) production release is in stock
Made by Samsung
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It was a joke.
56K said:
It was a joke.
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Went over my head, clearly!