hi every body,
I just want to know if there is a program for my android based xperia play that can disable charging the battery during charging.... WHY? because I really using my phone for most of my activity such as downloading large size files like games and movies through wifi, so I dont want to shorten my battery life by leaving the phone charging but I want it to work directly from the charger.
and if this was'nt possible, do you think it is a good feature that can be included in future mobiles by putting small secondary battery for that purpose?
thank you and sorry for long "story" : )
sent from my xperia play.
It is not possible because it is not necessary. Lithium Ion batteries do not lose life by constantly charging. You can keep it on the charger 24/7 and your battery won't last any less than the next guy.
Thank you for your answer. I really read about this, but what about battery tempreture? is it increased during long time charging? because as I read, the over heating is the enemy of lithium battery.
what do you think?
Modern li-ion batteries actually have circuitry to prevent bad things happening during charging. Even if your phone indicates charging, the individual cells in the battery may or may not be charging to prevent overcharging.
Your battery should only heat up during the charging cycle when it is genuinely discharged.
"Your battery should only heat up during the charging cycle when it is genuinely discharged."[/QUOTE]
Yes, this is what I mean because at the time I charging my battery, I make a download by wifi, so it is disharging and this is the problem that let me to aske for disabling charging during charging. : )
Related
How do fastest discharge HD2? It is special softwar or trick to do it?
Why do you need to do this other than by leaving the phone on?
Sent from my HTC HD2 using XDA App
start pocketplayer and start listening to a radio stream. then start the camera and let it on. should be enough xD
or just boot android XD
Why? Because I had 2 batteries and is better first battery discharge to 0% before I started charge it.
D4rkSoRRoW said:
or just boot android XD
Click to expand...
Click to collapse
LOL
it's really not a good idea to completely discharge Lithium ION batteries.. it does tend to screw them up a bit..
I used to work on batteries for a living and deep discharges are not good news.. ESPECIALLY with Li cells
"Avoid frequent full discharges because this puts additional strain on the battery. Several partial discharges with frequent recharges are better for lithium-ion than one deep one. Recharging a partially charged lithium-ion does not cause harm because there is no memory. (In this respect, lithium-ion differs from nickel-based batteries.) Short battery life in a laptop is mainly cause by heat rather than charge / discharge patterns"
taken from http://www.batteryuniversity.com/parttwo-34.htm
nutmegy said:
it's really not a good idea to completely discharge Lithium ION batteries.. it does tend to screw them up a bit..
I used to work on batteries for a living and deep discharges are not good news.. ESPECIALLY with Li cells
"Avoid frequent full discharges because this puts additional strain on the battery. Several partial discharges with frequent recharges are better for lithium-ion than one deep one. Recharging a partially charged lithium-ion does not cause harm because there is no memory. (In this respect, lithium-ion differs from nickel-based batteries.) Short battery life in a laptop is mainly cause by heat rather than charge / discharge patterns"
taken from http://www.batteryuniversity.com/parttwo-34.htm
Click to expand...
Click to collapse
Thanks. Interesting. But on the other hand side some people recomend sometimes full discharges. I do not know what is true
what the f***
everybody said it would be the best to fully discharge and then fully load the battery
my experience is the same Oo but the new batteries doesnt have memory effects, thats true, and its not so bad to partial charge them yea.. but i thought it would be still better to full discharge - charge them Oo
D4rkSoRRoW said:
what the f***
everybody said it would be the best to fully discharge and then fully load the battery
my experience is the same Oo but the new batteries doesnt have memory effects, thats true, and its not so bad to partial charge them yea.. but i thought it would be still better to full discharge - charge them Oo
Click to expand...
Click to collapse
That's just my experience with Lithium Ion I personally dont fully discharge because i worked on some Li cells for a project i was working on and they never recovered properly... and in some cases caused major damage to the cells themselves... just voicing my opinion
the main reason to do an (almost) full discharge / charge cycle with Li+ batteries is to callibrate the battery monitor circuits.
As said above there is no need to discharge Li+ batteries to prevent battery memory, , it doesnt happen with these, only NiMH batteries.
If the battery gets to 0% whilst the phone is in use, it still has some charge in it, because the protection circuits kick in and power off the phone when there is still some charge in it, so dont worry about getting to completely flat whilst in use, however forcing it to discharge, for example trying to enter bootloader over and over, or shorting the power connectors, can potentially cause problems, because the protection circuits aren't working correctly at that time.
The same goes for overcharging, you should never use direct charging devices, because these dont always have overcharge prevention circuits. You should only ever charge it in your device, or in a compatible charger. (So no building your own using two bare wires! ! )
Hey,
Just thinking, anyone please correct me if I'm wrong, but as far as I know both the tablet and the dock have a Lithium-ion battery
From my knowledge, to keep lithium ion batteries in the best state you have to keep them between 20% and 80%, and not under/over charge them. The dock kinda seems to contradict this, because its constantly overcharging the tablet. This is extremely bad for the battery and greatly reduces the life span and capacity. Think of it as a laptop that you have in the socket 24/7, if you do this for half a year, the battery wont last for more then 30 mins. This, in a way, is resulting in the same problem.
Maybe this has been discussed before, but I couldn't find it, but isn't this a major design flaw? The dock should have some on/off charge switch.
It's not that simple. The Transformer, like every cell phone, laptop, and tablet using LiIon cells uses a charge controller chip that monitors charging current, pack voltage, pack temperature, discharge rate, and charge history to optimally control the power being fed to the battery from the charging input. The charge controller has a programmed hysteresis that keeps the battery from constantly charging (trickle charge) once it reaches its max capacity. Without a charge controller, the pack would eventually overheat and catch fire.
It is true that fully charged LiIon batteries will degrade in capacity over months to years. It's more damaging to the battery though to run it through a complete cycle (completely discharge). The best thing you can do for your battery without shelving the TF is to charge it every night to keep from unnecessarily running the battery down the next day.
In short, the Transformer can look after itself.
Also, this.
Thanks for your reply.
I might have used the wrong wording, I understand they have charge controllers to prevent the batteries from overcharging and exploding or catching fire. What I ment by overcharging was, charging it while the battery is already full, and undercharging - not charging it enough by letting it go into a deep discharge too often.
As stated in your link, "partial-discharge cycles can greatly increase cycle life, and charging to less than 100% capacity can increase battery life even further"
The dock keeps pushing it to 100%, and keeps it at 100% - reducing its battery life. Also, because you can not disable the dock charge, assuming you are constantly want to use the keyboard which I do, it will go into a deep discharge, also reducing the battery life of the dock. As often said, the best state for LiIon batteries is between 40% and 80%, this is hard to archive for both the dock and tablet due to it constant charging the tablet to full.
In order to preserve the best battery life, you must un-dock the tablet around 90% - and charge the dock whenever it reaches below 40% or so. Meeting both these requirements, while wanting to use the dock constantly seems like a burden. Not doing this, will rapidly decrease the capacity from my understanding.
Please correct me if I'm wrong though.
I don't see why people worry so much about this. It takes a few years for there to be any noticeable loss in battery life on lithium ion batteries, and even longer for it to become a significant burden.
It took me five years of daily usage of my old Toshiba laptop to wear down the battery to about half its original capacity, and it's still usable with only 2.5 hours of battery life. If we assume similar rules would apply to the Transformer, after 4-5 years you could still achieve a maximum of 8 hours on a single charge. If anything, by that time you'd be more concerned about how sluggish the device feels when compared to the newest tech, especially when browsing the web.
Is it better to charge them separately?
From what I heard, the dock charges the Tablet. So if I charged with the two connected, the dock would charge, and it would in turn charge the Tablet...sounds kind of inefficient to me, and maybe even bad?
I usually charge my TF101 tablet from it's dock and have done so since September, perfectly fine and no negative impact on the battery. Just don't make a habbit of burning the batteries too low, like 1% before you charge.
My dock does drain a little faster after having gone through a bunch of heavy discharges but that's why I usually charge before I get to like 3% .
Spidey01 said:
I usually charge my TF101 tablet from it's dock and have done so since September, perfectly fine and no negative impact on the battery. Just don't make a habbit of burning the batteries too low, like 1% before you charge.
My dock does drain a little faster after having gone through a bunch of heavy discharges but that's why I usually charge before I get to like 3% .
Click to expand...
Click to collapse
That's odd since it is recommended that you run the batteries down before charging them instead of putting it on the charger before it gets below 10%. Charging them without running the power down has a negative effect on the amount of charge it can hold.
That is not required anymore.The ideal charge level for these batteries is about 40%.
Charge cycles aren't a problem either so discharge is required once a month or even more.
These devices use LiPo and Co batteries.
For these, it is recommended NOT to fully let the battery discharge (unlike older batteries with memory effect).
It is however recommended to fully charge then fully discharge your battery ONCE when you first use it on order to calibrate the battery (ie: let the software learn what level means full and what level means empty)
Sent from my GT-I9100 using XDA App
eraursls1984 said:
That's odd since it is recommended that you run the batteries down before charging them instead of putting it on the charger before it gets below 10%. Charging them without running the power down has a negative effect on the amount of charge it can hold.
Click to expand...
Click to collapse
You can check the link in my Sig. there is some info on recent batteries and calibration.
Yup, running it till it shuts off is mainly to calibrate the battery gauge. Most Lion batteries have auto shutoffs built into them to prevent discharging past the point of no return (which is why ebay batteries are so cheap, usually they lack this and other features, like temp sensors to kill the device before it melts)
As to charging both devices, i dont see how charging each together would harm anything aside from running more power through the dock might eventually wear it out? Honestly i dont think you have anything to worry about XD
But I can see the dock being discharged to zero so often. So far it has happened 4 times without me even knowing it since its often connected to the tablet. I wish there was a way to use the dock and disable the charging to the tablet.
Its better to have a few full discharge n full charge cycle for any new battery operated product to maximize the new battery capacity after a few cycles it will reach its peak capacity.
iceman127 said:
Its better to have a few full discharge n full charge cycle for any new battery operated product to maximize the new battery capacity after a few cycles it will reach its peak capacity.
Click to expand...
Click to collapse
But I'm sure on many occasions just by the usage and nature of the dock that it will end up being drained to 0% quite often. I don't think my dock battery will survive too long -.-
I am seeing too many battery misconceptions. Let me clear them up.
STORAGE:
Lithium batteries like to sit around 50% for prolonged periods. If you need to power down your phone and store it, do it around 50-60%.
STATE OF CHAGE / BATTERY LEVEL
- It will NOT hurt to keep your phone on the charger. The charging circuitry cuts off power once the Cell hits 4.35 - 4.4v (If it did not, your battery would swell and heat up and then explode or catch on fire or both)
- It is MUCH more harmful to deplete the battery than it is to keep it full. Lithium batteries DO NOT like to go below a certain voltage depending on specific chemistry formulation.
For Example: Chevy Volt electric car Lithium battery is set to stay within 30% - 80%. They are limited to never exceed an SOC of 80% and never go below 30%. Source: https://en.wikipedia.org/wiki/Chevrolet_Volt
To expand on this. It is BETTER to keep the phone at 95% than it is to keep it at 5% for example. I personally would NOT want my battery falling low enough that it gives a low battery indication (usually around 15%). Usually I do not want it hitting 30%. That's a good rule imho.
CHARGE AND DISCHARGE CURRENT
Lithium batteries prefer to be charged slowly and discharged slowly. They do NOT like high charge and drain.
You guessed it. AVOID high charge scenarios such as Fast Charge. AVOID fast discharge scenarios such as gaming with high brightness etc.
TEMPRATURE
Lithium batteries do not like getting hot. They don't even like getting warm. Getting hot hurts it. Getting warm isn't as bad but it DOES degrade the total capacity over time.
Again, this is usually caused due to high charge or discharge scenarios.
It also ties in with Fast charge, wireless charge and especially wireless fast charge. Wireless charging is not efficient and energy as wasted as heat.
Personally I disable fast charge and do not use wireless charging. Good old USB Type C already charges quickly enough for me.
TLDR: Disable Fast Charge. Try to use USB Type C charging instead of wireless charging. Disable stuff you don't actually use. Try to keep power save on even if using it with very little power saving settings. Try to keep brightness at a reasonable level and not too high (This reduces AMOLED degradation too).
Remember: THE BATTERY IS NOT EASILY REPLACEABLE IN THE NOTE 7 !!!!!!!! Therefore the more you baby it, the longer it will hold it's charge and the lower the chance of the battery going bad.
My old Notes (Note 2 and Note 4) both still have VERY good original batteries because they were well taken of.
Good luck !
But I like fast charging and wireless charging lol
Ironic that when your phone is new, this is when the battery gets hot and used a lot. Perhaps with the water resistant phones we should update the firmware and restore the backup under water to keep the phone cool!
I will be sure to disregard just about everything in here. Guy is spreading false panic.
Actually "store mode" example: found in 7420 kernel source is 60-70% capacity. There are a lot of checks within source including battery swell etc. Don't fret about things, use your device. It's not as delicate as you may think. Who cares about the efficiency of wireless charging. Great if you've got it
90% won't keep beyond 2 years, just enjoy the thing !!
UN-recognized Developer of my SkyHigh Kernel v5.8.x powered SM-N920C
UpInTheAir said:
Actually "store mode" example: found in 7420 kernel source is 60-70% capacity. There are a lot of checks within source including battery swell etc. Don't fret about things, use your device. It's not as delicate as you may think. Who cares about the efficiency of wireless charging. Great if you've got it
90% won't keep beyond 2 years, just enjoy the thing !!
UN-recognized Developer of my SkyHigh Kernel v5.8.x powered SM-N920C
Click to expand...
Click to collapse
My device arrived at 59% charge, ties in with what you say about storage.
This is app is a must have and thought I'd share. Like everywhere I have read, they say battery should not be charged to 100%, it will hurt the battery somehow. This app "Battery Charge Limit" automatically (with root) stops charging the phone at whatever percent you want and starts charging back up at whatever percent you want. So you can always stop before it hits 100. It can be used without root but it only notifies you and you have to manually unplug the phone to stop charging. Better with root since its automatic.
https://play.google.com/store/apps/details?id=com.slash.batterychargelimit
Ndaoud360 said:
it will hurt the battery somehow.
Click to expand...
Click to collapse
Don't charge to 100%
Slow charge only
Don't quick charge
Don't use wireless charger because it heats up the battery
Lower brightness to 10% for best battery life
Disable wifi/lte/nfc/bluetooth for best battery life
...
Enjoy your $1000 phone!
peachpuff said:
Don't charge to 100%
Slow charge only
Don't quick charge
Don't use wireless charger because it heats up the battery
Lower brightness to 10% for best battery life
Disable wifi/lte/nfc/bluetooth for best battery life
...
Enjoy your $1000 phone!
Click to expand...
Click to collapse
Keep it turned off for a better batter longevity ??
Damn thos people are more preocupied of how to prevent the battery wear than actually enjoying this amazing phone
Well coming from an HTC device where after like what 6 months, my battery starts dying much quicker and hopefully this app and the nature of Samsung makes my phone battery last longer. Never owned a Samsung, so I don't know how the battery lasts over time.
This is a myth, modern phones already prevent damage from overcharging with the charge controller in the phone. Fast charging and slow charging also does not make a difference in battery longevity.
Just use your phone like a phone.
Yeah no
@nukeclears you need to bone up a bit more on battery chemistry before making statements like this. Overcharging is very different from charging to 80%. That's why Apple just implemented a charge limit in ios13 and Tesla strongly recommend charging to 80/90% max for daily use. Samsung just don't want to do this because they haven't felt enough pressure. I'll bet they implement it on the S11 and then for all phones by the end of the year.
Tab S4 has a setting to stop charging at 80%
You guys do need to go through all this? For what?
I have a Note 3 with battery since 2014 or 15, it still gives me the same power, sometimes it's better than it first was.
Charging fast/slow doesn't affect anything, I'm doing so for years.
I really don't think batteries die, if you felt it's weakening, just change OS, not the battery.
Samsung themselves, on the s10 series, suggest to charge from 30% to 80% everytime you need a charge.
In my daily usage, stopping charge to 90% is enough and I have all the juice i need till the next day.
If you are rooted, Battery Charge Limit app can be very useful to optimize the life of your battery (remember: battery is the first hardware component that ages your phone). On my 2015's Sony phone, they wanted me to pay 75 euros for battery replacement...
This thread is full of people who know nothing of batteries.
I bet your phone battery does "feel" the same after years when your os pushed that update that permanently limited your frequencys lmao.
peachpuff said:
Don't charge to 100%
Slow charge only
Don't quick charge
Don't use wireless charger because it heats up the battery
Lower brightness to 10% for best battery life
Disable wifi/lte/nfc/bluetooth for best battery life
...
Enjoy your $1000 phone!
Click to expand...
Click to collapse
Enjoy replacing it every year because phone batteries are becoming more commonly HARD GLUED into place. So go ahead, switch the whole phone out.