I will edit the post as other suggestions come in.
This is what I am doing and it works very well for me. Keeping all things equal... meaning keeping your screen brightness the same, keeping you live wallpaper if you have it you should see major improvement in battery life.
Draining a new battery to 0 and charging to 100 percent several times will help extend the battery life.
Anker 1930mah I find add 20 percent better life.
I have stock HTC 1 by 1 widgets on my home screen that allow me to easily manage wifi, mobile data, sync and airplane mode. I suggest turning off backround data and auto sync.
New Energy ROM and stock videotron kernel is the best battery life by far and it a awesome Rom.
OC_daemon comes with energy rom.. i use it to drastically reduce your cpu speeds when screen is off and even can reduce when the screen is on if you do not run a lot of widgets / high demand apps...
Let me know how it works for you...
Preaak said:
I will edit the post as other suggestions come in.
This is what I am doing and it works very well for me. Keeping all things equal... meaning keeping your screen brightness the same, keeping you live wallpaper if you have it you should see major improvement in battery life.
Draining a new battery to 0 and charging to 100 percent several times will help extend the battery life.
Anker 1930mah I find add 20 percent better life.
I have stock HTC 1 by 1 widgets on my home screen that allow me to easily manage wifi, mobile data, sync and airplane mode. I suggest turning off backround data and auto sync.
New Energy ROM and stock videotron kernel is the best battery life by far and it a awesome Rom.
OC_daemon comes with energy rom.. i use it to drastically reduce your cpu speeds when screen is off and even can reduce when the screen is on if you do not run a lot of widgets / high demand apps...
Let me know how it works for you...
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for the last time, lithium ions have been out for over a decade now...they do not have memory so there is no need to cycle these batteries...draining the battery and overcharging it is actually bad for lithium ions...lithium ion batteries must be in a constant state of charge and discharge to extend battery life...draining to 0 and 100 only recalibrates the accuracy of how much battery that your phone shows that is actually left in your battery. also draining the battery and overcharging lithium ions is a very bad idea and will significantly decrease the life of the battery...
the other points are absolutely true and valid and recommended
seansk said:
for the last time, lithium ions have been out for over a decade now...they do not have memory so there is no need to cycle these batteries...draining the battery and overcharging it is actually bad for lithium ions...lithium ion batteries must be in a constant state of charge and discharge to extend battery life...draining to 0 and 100 only recalibrates the accuracy of how much battery that your phone shows that is actually left in your battery. also draining the battery and overcharging lithium ions is a very bad idea and will significantly decrease the life of the battery...
the other points are absolutely true and valid and recommended
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I never suggest overcharging your battery and battery memory is not the reason for a full charge and discharge.
Fully charging battery helps the phone properly read your battery and use the battery output evenly. The batteries drains at a more constant rate.. I would say it settled down.
According to Anker... to reach the best performance, full charge and discharge your new battery for 4 to 5 times.
I know you do not agree but that is my experience and that is what the maker of the battery suggest. So this should be done.
Preaak said:
I never suggest overcharging your battery.
According to Anker... to reach the best performance, full charge and discharge your new battery for 4 to 5 times.
After doing this the batteries drained at a more constant rate.. I would say it settled down. I know you do not agree but that is my experience and that is what the maker of the battery suggest. So this should be done.
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I know what you're talking about. It's an old mentality that refuses to Die form years of using Ni-Cd batteries. I have a post about this somewhere I just can't find it. search up battery university lithium ion on google. It'll tell you lots more. If this was true all companies with lithium ions would tell you to charge and discharge multiple times...but newer companies like samsung and sony don't even recommend this and they just ell you to charge until full, on many of their products with lith ion now.
http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
Li-ion does not need to be fully charged, as is the case with lead acid, nor is it desirable to do so. In fact, it is better not to fully charge, because high voltages stresses the battery. Choosing a lower voltage threshold, or eliminating the saturation charge altogether, prolongs battery life but this reduces the runtime. Since the consumer market promotes maximum runtime, these chargers go for maximum capacity rather than extended service life.
there are more articles in other places just got lazy lol
seansk said:
I know what you're talking about. It's an old mentality that refuses to Die form years of using Ni-Cd batteries. I have a post about this somewhere I just can't find it. search up battery university lithium ion on google. It'll tell you lots more. If this was true all companies with lithium ions would tell you to charge and discharge multiple times...but newer companies like samsung and sony don't even recommend this and they just ell you to charge until full, on many of their products with lith ion now.
http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
Li-ion does not need to be fully charged, as is the case with lead acid, nor is it desirable to do so. In fact, it is better not to fully charge, because high voltages stresses the battery. Choosing a lower voltage threshold, or eliminating the saturation charge altogether, prolongs battery life but this reduces the runtime. Since the consumer market promotes maximum runtime, these chargers go for maximum capacity rather than extended service life.
there are more articles in other places just got lazy lol
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Those test mean very little because in the real world those batteries have to work our phones and not a artificial charge / discharge cycle... Meaning fully charging and discharging you battery allows your phone to properly read your battery and use the battery output evenly.
I would also point out that in that article does not say that a full charge and discharge of only 4 or 5 times will reduce service life. Yes doing this habitually will...
Preaak said:
Those test mean very little because in the real world those batteries have to work our phones and not a artificial charge / discharge cycle... Meaning fully charging and discharging you battery allows allows your phone to properly read your battery and use the battery output evenly.
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correct...the only thing that cycling a lithium ion does it to read the battery life properly...it will not affect battery life at all, unlike older ni-cd. its a race between getting a longer battery life or a longer runtime...if you want you battery to last...then i suggest you don't charge to 100 percent and you don't let you phone die...if you want more runtime which is what everyone wants, then you have to charge to 100...but as many people notice...going from 80 to 100 takes a long time while going from lets say 20 to 80 takes the same amount of time...also battery drains very quickly from 100 to around 80 percent..
my only point was that you do not need to cycle your battery multiple times. Once time should be enough for you phone to get a good handle on your calibration...besides you can always recalibrate the readout using an app.
If I have lots of widgets, can that suck more battery, also, my network is off all day, turn it on whenever I need it, and sync is off too.
Sent from my HTC_Amaze_4G using Xparent Green Tapatalk
Related
Why "deep battery cycling" or "conditioning," is bad for your battery
In summary, "conditioning" your battery is only good for calibrating the tools which predict how long your battery will last.
I.e. people seem to be recommending that new phones should be completely discharged a few times and then fully recharged. In some cases, people are recommending that the phones be left discharged for long periods of time before recharging. THIS IS A BAD IDEA AND WILL NOT HELP BATTERY LIFE.
Again, you can do this to calibrate the battery monitor, but this will not help the battery itself.
Here's a quote from wikipedia *since I am a new user I can't directly link but go to en(DOT)wikipedia(DOT)org/wiki/Li-ion_battery
Like many rechargeable batteries, lithium-ion batteries should be charged early and often. However, if they are not used for a long time, they should be brought to a charge level of around 40%–60%
Lithium-ion batteries should not be frequently discharged fully and recharged ("deep-cycled"), but this may be necessary after about every 30th recharge to recalibrate any electronic charge monitor (e.g. a battery meter). This allows the monitoring electronics to more accurately estimate battery charge.[27] This has nothing to do with the memory effect.
Li-ion batteries should never be depleted to below their minimum voltage, 2.4 V to 3.0 V per cell.
Li-ion batteries should be kept cool. Ideally they are stored in a refrigerator. Aging will take its toll much faster at high temperatures. The high temperatures found in cars cause lithium-ion batteries to degrade rapidly.
Li-ion batteries should not be frozen [50] (most lithium-ion battery electrolytes freeze at approximately −40 °C; however, this is much colder than the lowest temperature reached by household freezers).
Li-ion batteries should be bought only when needed, because the aging process begins as soon as the battery is manufactured.[27]
When using a notebook computer running from fixed line power over extended periods, consider removing the battery[51] and storing it in a cool place so that it is not affected by the heat produced by the computer.
Hope this helps someone.
Thank you DarkDvr, wikipedia credits to him
Also, feel free to read up at batteryuniversity(DOT)com/learn/article/how_to_prolong_lithium_based_batteries
*again, this is my first post so it wont let me link directly.
Good read. Al though, this is XDA after all and you will be flamed for using wikipedia as as a source. Just giving you heads up.
Lejjvi said:
Good read. Al though, this is XDA after all and you will be flamed for using wikipedia as as a source. Just giving you heads up.
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"battery conditioning" is only bad if you do it all the time and drain it completely dead often...
Lithium ion batteries don't really need this...
And should only be done if you think you have faulty battery stats due to flahing new software or roms....
We all know this and the people that don't now know.. thanks op for informing the uninformed!
sent from a 3devo
You need to condition it for the phones software as well... Otherwise it will shut off before the battery is actually dead. But yes, you shouldn't do it all the time.
People confuse why I needs to be done is all.
Yeah, should change the title. It's misleading.
Sent from my HTC Evo 3D.
there is a diffrence between a deep cycle and a normal cycle.they are only resistant to developing a memory.
Yes, I know this xda, but this after reading some of the multiple battery life threads it seemed like there was some misinformation floating around. I mean, I know batteries are the cheapest part of the phone and easy to replace, but still. No point in going through all the trouble of multiple deep cycles when it actually does harm to the battery.
Also, I wonder what the people with 2 batteries do, and how this affects the battery meter. Or, if you switch to a higher capacity battery. At what point does the unit recalibrate itself?
So I have had mine sitting here all packaged up since tuesday.
And im looking to now actually open it and play with it,
Do you recommend I charge to full when off, or on? Perhaps run it dry and then charge it up?
You used to be told, Charge it for 8 hours before you use it...
That surely can't be true of todays rechargeable battery technology?
[Q] charging and battery damage
If I leave my touchpad on the touchstone charger for long periods and the touchpad is switched on will this damage the battery?
I know I have had laptops and always ran them of the mains and the battery has stopped holding a charge.
Cheers.
I assume that the touchpad has a charging circuit that stops it charging when the battery is full, but batteries will always fail after a while regardless. Lithium batteries are best charged often and not let run down too much in between.
Also, dson't let a lithium battery run down completely, you can significantly shorten its life doing that.
Troute said:
Also, dson't let a lithium battery run down completely, you can significantly shorten its life doing that.
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source? I thought lithium battery had no memory.
It's not a memory issue, running a lithium battery flat (deep discharging) has a physical effect on it where it will lose it's ability to recharge to as high a level as the previous charge. Each time this happens the battery loses more of it's ability to reach an effective voltage.
Don't take my word for it, do your own research, there's plenty of information out there it internet land.
alexhayuk said:
If I leave my touchpad on the touchstone charger for long periods and the touchpad is switched on will this damage the battery?
I know I have had laptops and always ran them of the mains and the battery has stopped holding a charge.
Cheers.
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Click to collapse
The dev for Dr.battery's has a thread that states that leaving your Touchpad on the touchstone for long periods of time should not impact the battery. Due to it switching to powering the unit after its charged. Though he is doing some testing on that. Also his app should be updated soon for the Touchpad (available through preware). I am still going to contact HP to discuss this as well. I would hate to damage a non replaceable battery. Will update if I have any new info.
Sent from my HTC Sensation Z710e using xda premium
Troute said:
It's not a memory issue, running a lithium battery flat (deep discharging) has a physical effect on it where it will lose it's ability to recharge to as high a level as the previous charge. Each time this happens the battery loses more of it's ability to reach an effective voltage.
Don't take my word for it, do your own research, there's plenty of information out there it internet land.
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I have done my own research. That's why i don't think this is accurate.
If you have some proof please share.
Besides common aging, a Li-ion battery can also fail because of undercharge. This occurs if a Li-ion pack is stored in a discharged condition. Self-discharge gradually lowers the voltage of the already discharged battery and the protection circuit cuts off between 2.20 and 2.90V/cell.
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http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Basically through normal use you can probably expect around 250-300 full charge cycles (partial charges only count as partial and add up with other partial charges to be a full cycle) in an average battery pack before it has degraded to 80% of it's original capacity. I don't see anything that point to full discharges being damaging. However storing it for longer periods of time fully discharged can affect life.
ambivalent-one I think the figure of 250-300 charge cycles you've pulled from that page refer to deep discharge cycle tests done by them, personally I'd be very unhappy with that kind of lifespan in a battery in regular usage. The same page you've posted http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries shows a chart of charge cycles versus depth of discharge.
Table 2: Cycle life and depth of discharge
A partial discharge reduces stress and prolongs battery life. Elevated temperature and high currents also affect cycle life.
Charges - Depth of Discharge
500 - 100% DoD
1500 - 50% DoD
2500 - 25% DoD
4700 - 10% DoD
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As you can see a L-ion battery can be made to last nearly ten times longer by keeping the charge level up near max.
Quote from http://www.batterieswholesale.com/damaging_batteries.htm
The Li-Ion cell should never be allowed to drop below about 2.4V, or an internal chemical reaction will occur where one of the battery electrodes can oxidize (corrode) through a process which can not be reversed by recharging. If this occurs, battery capacity will be lost (and the cell may be completely destroyed)
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karan1203 if you reckon the information about deep discharge not accurate, can you provide the results of your own research that shows this?
Just let it die the first time, then charge when under 5%.
karan1203 said:
I have done my own research. That's why i don't think this is accurate.
If you have some proof please share.
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Your research must've been incredibly basic in that case. The 2nd result I get when Googling "lithium batteries" gives me the wikipedia page which has a small amount of into on it:
http://en.wikipedia.org/wiki/Lithium-ion_battery
Look at the "Safety requirements" section for a start.
Also Google "lithium batteries discharge" returns some useful links.
The manual states: "The battery reaches it's maximum capacity after a few full charging and discharging cycles."
So, does this mean you should fully charge and then fully discharge the battery a few times to get maximum battery life?
If so, should you do this the first few times only or every time after that as well?
IOW, after the few initial times, would you get the best battery life fully discharging or topping off? Does it matter?
I think what it may mean is that the device needs full charging cycles to learn how to read the battery status accurately (so it doesn't say 2% when a fifth of the battery life remains). Other than that, lithium ion batteries are usually happy with top-up charges and only need to be deep-cycled occasionally to keep the OS' battery meter in sync.
OK, thanks. I didn't even know it used a Lithium-Ion battery. Based on that info. I did a quick search and found this: http://www.blackberryfaq.com/index.php/Maximum_Battery_Life
Interesting.
Mithent said:
I think what it may mean is that the device needs full charging cycles to learn how to read the battery status accurately (so it doesn't say 2% when a fifth of the battery life remains). Other than that, lithium ion batteries are usually happy with top-up charges and only need to be deep-cycled occasionally to keep the OS' battery meter in sync.
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Agreed, that is an intelligent assessment.
Sent from my Transformer Prime TF201 using xda premium
So i was browsing the Nexus S forum and Google+ and found an interesting post by one of Android/Google engineers : https://plus.google.com/u/0/105051985738280261832/posts/FV3LVtdVxPT
Today's myth debunking:
"The battery indicator in the status/notification bar is a reflection of the batterystats.bin file in the data/system/ directory."
No, it does not.
This file is used to maintain, across reboots, low-level data about the kinds of operations the device and your apps are doing between battery changes. That is, it is solely used to compute the blame for battery usage shown in the "Battery Use" UI in settings.
That is, it has deeply significant things like "app X held a wake lock for 2 minutes" and "the screen was on at 60% brightness for 10 minutes."
It has no impact on the current battery level shown to you.
It has no impact on your battery life.
Deleting it is not going to do anything to make your more device more fantastic and wonderful... well, unless you have some deep hatred for seeing anything shown in the battery usage UI. And anyway, it is reset every time you unplug from power with a relatively full charge (thus why the battery usage UI data resets at that point), so this would be a much easier way to make it go away.
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The whole idea of erasing that file having any effect on battery life is pure superstition and wishful thinking. The battery usage UI describes what your device has been doing that has been consuming battery; it doesn't change how the device is using the battery.
You want to "refresh" your battery stats? Charge your phone. When you unplug it again, the device knows it's at full charge (because the battery firmware says so), so the stats tracking treats that as a known milestone for reporting purposes.
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interesting!
I never wipe my batterystatus.bin till now!
I also think it doesn't doing anything but never knew that reson thanks for sharing
Does this mean that calliberating your battery has NO effect? I've seen so many devs themselves recommending it. (ofcourse I might be understanding this whole thing wrong)
myozeus said:
Does this mean that calliberating your battery has NO effect? I've seen so many devs themselves recommending it. (ofcourse I might be understanding this whole thing wrong)
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well, franciscofranco, our kernel 'god', didn't wipe batterystats.bin in his life before. however i always flash things on a full charge just in case
well when you calibrate the battery you only del this file.
this is a one second task
on a macbookpro the calibartion of the battery takes a long time.
so I would not really call this calibration at all.
Thanks for the info...
It'll save time for the people like me ;-)
i never used that option ever
i have very good battery life xd
cekuhnen said:
well when you calibrate the battery you only del this file.
this is a one second task
on a macbookpro the calibartion of the battery takes a long time.
so I would not really call this calibration at all.
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A Laptop battery has many cells, and, once a while, they get different charges among them, that's why you have to fully discharge your laptop battery once a month, to get them all to the same amount of charge.
Since our phones have one cell in their batterys, I don't know if it's really necessary to calibrate them.
myozeus said:
Does this mean that calliberating your battery has NO effect? I've seen so many devs themselves recommending it. (ofcourse I might be understanding this whole thing wrong)
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no. caliberating does have good effects. but caliberating does not mean deleting the file. it means charging full n emptying it full n charging full again...
harshdoshi25 said:
no. caliberating does have good effects. but caliberating does not mean deleting the file. it means charging full n emptying it full n charging full again...
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Actually, lithium ion batteries do not need calibration. Period.
The elements its comprised of have no "cell memory" and the battery firmware is hardcoded with the knowledge of what a full charge should be. Anytime you drain your battery past normal thresholds, it just puts extra wear and tear on the cells and reduces its ability to hold a full charge. By intentionally draining the battery in one sitting, all you're doing is stressing the battery and causing the problem you're trying to correct.
Long story short: Don't calibrate; it just hurts your battery.
Now, if you had a NiMH or an older LiPoly battery, I'd say go right ahead and try to calibrate them if they aren't holding a charge. These types of batteries do have "cell memory" and can often forget what a full charge is.
This information is widely available; it's no secret and I'm not making it up. You can search for yourself or read up on it at Battery University.
Tonhos said:
A Laptop battery has many cells, and, once a while, they get different charges among them, that's why you have to fully discharge your laptop battery once a month, to get them all to the same amount of charge.
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Actually, capacity drops in multi-cell batteries are typically due to voltage drops in certain cells. Draining the battery won't bring them back; you're only going to hurt the capacity of the rest of the cells. The only solution is to replace the defective cells.
Placebo placebo placebo, like I have always said. And like "theanykey" said, do not let lithium ion battery go completely empty, it just reduces battery lifespan. Seriously.
calibrating a Lithium ION battery does have some effect. 9x out of 10 there is some type of protection circuit on the battery that monitors its maximum charge, lowest charge, and wear levels and static values set by the manufacture.
Often times there can be a false wear level (wherein the wear gets set too high, usually caused by disconnecting the battery from a charge at like 95% or running the battery down to below 10%) and the charging circuitry within the battery WONT charge above that level.... to circumvent that improper wear level... a full charge, then FULL drain, then full charge is needed to properly reset those values and gain you extra battery life as the battery gets charged more.
nd4spdbh said:
calibrating a Lithium ION battery does have some effect. 9x out of 10 there is some type of protection circuit on the battery that monitors its maximum charge, lowest charge, and wear levels and static values set by the manufacture.
Often times there can be a false wear level (wherein the wear gets set too high, usually caused by disconnecting the battery from a charge at like 95% or running the battery down to below 10%) and the charging circuitry within the battery WONT charge above that level.... to circumvent that improper wear level... a full charge, then FULL drain, then full charge is needed to properly reset those values and gain you extra battery life as the battery gets charged more.
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Wear level has nothing to do with usable capacity and is not accounted for during charging. It's an arbitrary number that exists solely so people will replace their batteries sooner than necessary. If I recall, its not uncommon for wear level to be calculated by charge cycles. So, by "calibrating", you may actually worsen the wear level.
Also, you do realize that lithium ion batteries never fully discharge, right? Once they do, they're dead.
If you want a technique that actually increases short-term capacity(at the expense of ruining the battery's longevity), look up bump charging.
This question seems a little (a lot) odd. because naturally we want our battery to get fully charged to get the most stamina out of it.
but i read a while ago that for Li-Io batteries the most efficient charge range are 10%-90% so basically that means the full charge -discharge cycles aren't good for the battery but harmful as it cause them to die faster..
anyway i considered this reading as a good theory until i bought a sony vaio laptop which had a battery preservation feature (it limits the maximal charge to 80% or 50% depending on the option) and for more that a year and a half my battery still performed well (less than 4% degradation) so i thought this was a real deal after all.
still the use cases for a laptop and smartphone are vastly different (the laptop can sit with 50% charge just fine since it will be on charge most of the time while the smartphone has to get the maximum amount of energy to last without a charger)
so is there (or can it be made) an app that can limit the charge (to 80% or 90%)
any help is really welcome
That sounds like an odd theory..
well it sure is
but i read it out a battery maker sheet
if i could find the link i will post it
here's a paper that's not the same as the one i read one year ago
but it hold essentially the same information
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
A partial discharge reduces stress and prolongs battery life
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If at all possible, avoid full discharges and charge the battery more often between uses. Partial discharge on Li-ion is fine; there is no memory and the battery does not need periodic full discharge cycles
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Lithium-ion suffers from stress when exposed to heat, so does keeping a cell at a high charge voltage
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==> this is the critical information for me: it means that it's not good to get the battery charge to 100% & more to keep at this level; that's why most phones prompt you to remove your charger after full charge
i hope this gets a little bit interesting for suspicious people..
This thread could be of interest: http://forum.xda-developers.com/showthread.php?t=1257497