Hi there,
I was wondering if there exists any tool to prolong the liftime of the battery.
In energy settings you can specify that the battery isn't charged when the device connected by USB.
Wouldn't it be good to have a tool running in the background that checks battery status from time to time?
It should turn off charging until the charge level drops below a configurable percentage (e.g. 20%). Then the battery gets recharged again until full.
Should prolong battery lifetime.
Only Question is, when connected to usb and battery charging is turned off, is the device still powered by the USB port or is the battery used.
So, have you heared of such a tool?
Nice love the idea saves havin to leave phone on charge over night screwwing battery hopefully some 1 will know/be smart enugh to creat 1
But actually, Lithium polymer and LiOH batteries in fact do best with more frequent charges. Deep cycling a Lithium battery will kill it far faster then many partial discharge/charge cycles (deep cycle it once too far, and it'll be toast anyway - hence the smart circuitry that shuts it down before it fully discharges). Similarly, not using a Li battery is not great for it either - they do best with regular use. So my practice is to always charge whenever it's convenient, regardless of the battery's charge state, and to leave my Tilt on 24/7. I've found over the years that my various Li batteries (cell phone, laptops, etc) retain greater charge capacity for longer that way, then either not using regularly or not charging them frequently.
And a Li battery has a finite lifespan anyway - just sitting unused at optimal conditions on a shelf, and it will be toast in about 4-7 years (typically) from internal self-oxidation. That's why when buying replacements, you always want factory new, not warehouse stored
I've always been thinking that Li-ion batteries wear with every charge cycle. Yes, deep cycle is deadly to battery life.
With Li-ion I've made a different experience: My laptop at home is usually operated without its battery. It's five years old and the battery is still in good shape / about 66% of its original capacity.
My laptop at work is three years old, battery is always installed, has got its second battery one year ago, because the first one was worn out.
Of course, this is not a sample quantity to be statistically relevant but a single experience.
Anyway, if you use the ernergys panel option not to charge the battery on USB connect and have the device connected to usb, the battery gets discharged if you have the Kaiser turned on, so the idea wouldn't work.
dont torture that battery!
http://forum.xda-developers.com/showthread.php?t=351610&highlight=batt
I've always said this simple statement about LiIon: Charge early and often.
Do you need to plug the phone in every time you get off a call? No. Do you need to worry about it dropping below 80%? No. Just charge as often as is convenient. Sitting at a desk for a hour working on something? Charge. Driving for more than 15m? Charge.
I think if you obsess too much you might wind up with USB connector problems from all the cycles on the connector itself, but intelligent use of the above statement should get you the most out of your battery.
(Figure I'll do a small cross-post here as I replied to the wrong topic a minute ago)
i charge each night
doing so more often would not have too much of an effect if you ask me
Related
Is charging our Kaisers from the PC ok? How much power does the USB provide to the Kaiser? Same as the standard adapter? I am asking this because I found no answer on the forum and I would prefer to load it directly from the PC every time rather than keep using the standard charger and putting it in the power outlet.
my advice for you to stop this option
because normaly we keep the phone connected to the pc for a long time and it makes the phone in charging mode all the time and iam sure that will make the battery dies fast
stop this option by disabling it from the battery options you can see it by clicking on the battery icon on the start bar
greetings
My phone has been plugged in to the USB at work all day, 5 days a week, for 5 months now. I can still get about 2 days out of the battery when I need to - for instance, after unplugging it each Friday at 5 I usually won't have to charge it until the same time on Sunday, the only time it generally does get plugged into the wall charger. I'm pretty sure my battery performance is still on a par with most people's - ie, not amazing, but quite livable with. It's certainly not showing any signs of harm from overcharging.
Boinng said:
My phone has been plugged in to the USB at work all day, 5 days a week, for 5 months now. I can still get about 2 days out of the battery when I need to - for instance, after unplugging it each Friday at 5 I usually won't have to charge it until the same time on Sunday, the only time it generally does get plugged into the wall charger. I'm pretty sure my battery performance is still on a par with most people's - ie, not amazing, but quite livable with. It's certainly not showing any signs of harm from overcharging.
Click to expand...
Click to collapse
Same here.. no problems. I don't even know where my charger is.
I charge mine from the PC all day too, and it stops charging when its at 100%. The bottom line is this: a USB port delivers a minimum of 500ma at 5v, the wall charger is probably very close if not more than that. The charging circuit in the phone does all the work of converting the 5dc into a charging voltage/current required by the battery, usually ramping up and down. Theres no difference other than maximum current between a USB port and ANY 5vdc adapter.
Wall wart gives 5V/1A. USB at 5V/500mA will not harm your battery. If you're using the standard battery, USB charging is appropriate to keep it topped up.
RMD
Isn't the constant charging of the batter bad for it?
I mean you charge it use it for a while then hook it up again and so on, isnt it better for the battery if you wait until it says that you have to recharge it?
According to my BatteryStatus, my wall charger gives me around +500-600mA (depending on programs running) and USB 2.0 charging from the front port on my computer gives about +100-300mA (depending on what's plugged into the computer and program usage).
Insaneboy said:
Isn't the constant charging of the batter bad for it?
I mean you charge it use it for a while then hook it up again and so on, isnt it better for the battery if you wait until it says that you have to recharge it?
Click to expand...
Click to collapse
That was a nicad battery issue lithium batteries do not have that issue.
-McMex
i think the point here is not if you charge it by usb or charger
for many people as they said it goes as well ok but it's an old advice used to be known that it's not good for your battery health to be on the charger all the time
also the same fact that it's always better to let the battery goes empty before you recharge it again some people have the sickness of recharging batteries when it's just gets 5 percent less , then they immaditaly start to recharge it again and this is a big mistake because in the long period the first levels of the battery start to die because they have never been used
mcmexican said:
That was a nicad battery issue lithium batteries do not have that issue.
-McMex
Click to expand...
Click to collapse
Didn't know that.
Thanks.
haam1978 said:
the same fact that it's always better to let the battery goes empty before you recharge it again some people have the sickness of recharging batteries when it's just gets 5 percent less , then they immaditaly start to recharge it again and this is a big mistake because in the long period the first levels of the battery start to die because they have never been used
Click to expand...
Click to collapse
Actually, its quite the opposite of what you say. If you let Lithium batteries discharge all the way, they will loose their capacity faster.
The following link will back up my claim:
http://batteryuniversity.com/parttwo-34.htm
Relevant quote: "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."
usb v wall charger
My kaiser
wall charger charges battery from flat (1%) in 1 hour
USB on PC takes 4 hours to go from 15 to 80%, only over night did it get to 100%.
I use wall charger everyday now.
axonn said:
Is charging our Kaisers from the PC ok? How much power does the USB provide to the Kaiser? Same as the standard adapter? I am asking this because I found no answer on the forum and I would prefer to load it directly from the PC every time rather than keep using the standard charger and putting it in the power outlet.
Click to expand...
Click to collapse
i use the pc option especially when i am traveling and only have my portable. When using my portable, i plug my phone in to get a charge... i like this option as it saves me from having to lug around another adaptor as well as being able to charge my phone just off the batteries of my portable at any time,,,, good option
posted twice --- as usual being a post hog
It's fine. It just takes longer to charge, especially if you're transferring a lot of data.
With the lithium ion chemistry, it is very detrimental to the battery if you let it run down to empty all the time. The batteries do not like this at all and will exhaust much quicker this way. If you were to store the batteries, you should store them at 40% in a cool place as that would only lose 2% of life per year I believe. At 100% storage, you can lost 20% a year of life. A little reading at that battery university website goes a long way
johnny13oi said:
With the lithium ion chemistry, it is very detrimental to the battery if you let it run down to empty all the time. The batteries do not like this at all and will exhaust much quicker this way. If you were to store the batteries, you should store them at 40% in a cool place as that would only lose 2% of life per year I believe. At 100% storage, you can lost 20% a year of life. A little reading at that battery university website goes a long way
Click to expand...
Click to collapse
So what happens when your battery that you leave stored at 100% loses 20% a year and a few years later it hits 40%?
Battery
haam1978: You are surely right for NiMh. But I don't know about Li-Ion. Time will tell. For now, I prefer to do it your way: discharge almost completely, BUT NOT TO 0%. Mostly to 5 - 10%. But the problem is that my stupid Windows doesn't report the life of the battery accurately ::- (. I got a Mugen 3000 Mah batt...
rotohammer & johnny13oi: Interesting website indeed. Unfortunately as I told haam, I can't get an accurate battery reading for this huge battery I got. Anyway, I'm still reviewing it ::- D.
rotohammer said:
Actually, its quite the opposite of what you say. If you let Lithium batteries discharge all the way, they will loose their capacity faster.
The following link will back up my claim:
http://batteryuniversity.com/parttwo-34.htm
Relevant quote: "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."
Click to expand...
Click to collapse
100% correct.
On a side note, my kaiser will get fully charged way faster when connected to the wall as opposed to USB. (always connected to a desktop with a real big UPS).
I just got a brand new SGS, and one question puzzles me. On the old phones, you would need to format the battery. Is this still needed ?
we have mixed opinions in this forum.
personally i don't really care which one is truth, because i cycle through 3 ~ 5 battery packs
and i use them all until they are dry (when the phone POP up and warns you 10% left)
Li-Ion battery does not suffer the same problem as the old nickel-metal hydride and nickel-cadmium (the old ones requires training)
http://en.wikipedia.org/wiki/Lithium-ion_battery
however there are members of this board that believes Li-Ion & Li-Po batteries still requires to be trained
The only truth behind either case, is that the more you leave the USB connected to the phone
the more your battery will get WASTED, that reduces the life cycle of your battery
it can easily be proven, if you leave a phone connected all the time to a power source, and you disconect it after a few months
the life of the battery gets shortened due it's contant charge & recharge cycles
that's why Android OS put a cap on battery full dectection, so that when the battery is fully charge, it WARNS you to disconect the phone, to prevent battery damage.
Android OS actually regulates the battery charge, by stooping further charges until it detects it's less than 99%, the only problem with this is that if your phone is dead (bricked) it will not charge the battery even if you leave it plugged as the OS is not running.
that's why using a wall charger to charge the phone is better
i'm using this kit here
http://forum.xda-developers.com/showthread.php?t=733705
Thanks for the detailed reply.
One more thing to add. A battery can be formed, not formated.
Got it. Thanks.
( meaning how many months before the battery loses storage capability, as opposed to "battery life" - how many hours until you run out of juice )
There are a lot of battery/charger threads, and some bright person actually looked up the TI charger circuit documentation, but I don't see anyone who has looked up what a li-ion battery needs to have a long lifetime.
So, I found information at:
http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
Interesting tidbits:
- Charging to 100% means that you can use the device longer the next day, but is not necessarily best for the battery itself. Frequent partial charges are just fine, and are actually better for the battery.
- It seems to be particularly important for Li-ion battery charging to be turned off when you get to 100%. The LED turning green in the NC cable shows that the system is taking care of this (so you can safely charge overnight without damaging the battery).
Connecting the NC to another system that does not stop applying current at 100% charged seems to definitely be a bad idea. So, don't use any system overnight, that the NC does not recognize as "charging".
This indicates that charging from a laptop USB may "work" but may be bad long-term for the battery. Here it depends on whether the TI charging circuit is sophisticated enough to adapt to the non-standard condition. Since the charging indicators do not indicate "charging" then the answer may be "no", and while you are getting the battery charged up, it may not be in the best way. (This seems to be an area for more research about the actual NC charging system.)
- The critical part is to not use a USB cable or other charging system that is not recognized by the NC, when the NC is close to 100% charge, to make sure that it doesn't overcharge the battery. As the article states:
Li-ion cannot absorb overcharge, and when fully charged the charge current must be cut off. A continuous trickle charge would cause plating of metallic lithium, and this could compromise safety. To minimize stress, keep the lithium-ion battery at the 4.20V/cell peak voltage as short a time as possible.
Click to expand...
Click to collapse
- So, in summary, I think that a different brand of charger is okay as long as the NC recognizes it as "charging", and one should avoid charging in situations where you are "fooling" the NC by charging the battery when the NC is not noticing.
I honestly had no clue about this lol, thanks!
This might save a lot of headaches with "bad batteries" in the long run.
Thanks for this! Very interesting.
Well said, ADude. I'm so used to having to go onto forums and set people straight on the "myth's" of battery charging, but you hit it right on. The most important thing to remember is that overcharging drains your battery life (but most modern tech has auto off, in which it goes into a low power mode that allows for a stable current to just keep it around 99%), there is no benefit to letting your nook (or any other device) die completely before charging again, as there is not benefit to charging fully (or not charging fully) in the long run.
Thanks again!
LiIon likes being charged early and often... Don't run it down to 20-30% every time, it'll only shorten the overall battery. If it's down to 40-50% at the end of the night, put it on the charger.
Mine lasts 3 or so days before it gets near 40%.
Greetings,
I just bought HTC one m7 from a friend. I have noticed that the battery is draining pretty fast and I am not doing any heavy usage. I installed GSam Battery app and I am constantly refreshing it without letting the screen sleep. Nothing else is running in the background. It shows 30%/hour drainage. Screen brightness is set to 50%. 3g network is connected and I have tethered the phone to laptop through wifi hotspot (just casual browsing im doing on my laptop).
Also the phone is charging pretty slow (compared to my previous lumia phone) which is annoying. If i connect the phone to laptop for USB charging, the battery goes down instead of charging.
Is there an issue with the battery, or is it just normal? Kindly enlighten me.
I will use the phone tomorrow with a 100% charging over night and can post the battery stat pictures if required.
Kind regards, Jasim
jasim.121 said:
Greetings,
I just bought HTC one m7 from a friend. I have noticed that the battery is draining pretty fast and I am not doing any heavy usage. I installed GSam Battery app and I am constantly refreshing it without letting the screen sleep. Nothing else is running in the background. It shows 30%/hour drainage. Screen brightness is set to 50%. 3g network is connected and I have tethered the phone to laptop through wifi hotspot (just casual browsing im doing on my laptop).
Also the phone is charging pretty slow (compared to my previous lumia phone) which is annoying. If i connect the phone to laptop for USB charging, the battery goes down instead of charging.
Is there an issue with the battery, or is it just normal? Kindly enlighten me.
I will use the phone tomorrow with a 100% charging over night and can post the battery stat pictures if required.
Kind regards, Jasim
Click to expand...
Click to collapse
Charging the phone using a usb port from a computer will always result with extremely slow charge or even discharge if the phone is consuming more power then what it receive from the usb port.
The USB 1.x and 2.0 specifications provide a 5 V supply on a single wire to power connected USB devices.
A unit load is defined as 100 mA in USB 2.0, and 150 mA in USB 3.0. A device may draw a maximum of 5 unit loads (500 mA) from a port in USB 2.0; 6 (900 mA) in USB 3.0.
Click to expand...
Click to collapse
Wall charger can deliver more current and will charge the phone much faster. As for the battery drainage, it might be some app draining or even the battery might need to be replaced.
Lithium batteries do lost capacity over time.
Lithium-ion battery packs are expensive, so if you want to make yours to last longer, here are some things to keep in mind:
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.
Lithium-ion batteries age. They only last two to three years, even if they are sitting on a shelf unused. So do not "avoid using" the battery with the thought that the battery pack will last five years. It won't. Also, if you are buying a new battery pack, you want to make sure it really is new. If it has been sitting on a shelf in the store for a year, it won't last very long. Manufacturing dates are important.
Avoid heat, which degrades the batteries.
Click to expand...
Click to collapse
While at work, I leave my phone plugged in and charged at all times.
I don't have exact temperatures but I've noticed that it is warm the whole time. Anyone else notice this?
blazinazn said:
While at work, I leave my phone plugged in and charged at all times.
I don't have exact temperatures but I've noticed that it is warm the whole time. Anyone else notice this?
Click to expand...
Click to collapse
Are you using the official charger?
Some aftermarket USB C cables can damage your phone or even fry it completely.
If you are using a standard charger, I'm more inclined to say your phone is getting warm because the battery has been charging. If you have hotspot on, that can warm your phone up quite alot too... Basically the more your phone is doing the hotter it can get (Bluetooth/wifi/hotspot etc)
FYI: charging to 80/90% will make your battery last alot longer too, if you plan on keeping it a few years. Charging to 100% is the fastest way to degrade your li-ion battery.
If you are rooted you can limit your charge to 90% but depends if you don't have access to a charger all day you might need that 100%.
Hope that helps.
Demolition49 said:
Are you using the official charger?
Some aftermarket USB C cables can damage your phone or even fry it completely.
If you are using a standard charger, I'm more inclined to say your phone is getting warm because the battery has been charging. If you have hotspot on, that can warm your phone up quite alot too... Basically the more your phone is doing the hotter it can get (Bluetooth/wifi/hotspot etc)
FYI: charging to 80/90% will make your battery last alot longer too, if you plan on keeping it a few years. Charging to 100% is the fastest way to degrade your li-ion battery.
If you are rooted you can limit your charge to 90% but depends if you don't have access to a charger all day you might need that 100%.
Hope that helps.
Click to expand...
Click to collapse
Yes, using the official charger. I also failed to mention that I have a case on my phone. Not sure if that is contributing to it.
Is it because charging to 100% counts as a full cycle? I will admit that I'm not up to snuff on battery tech and what the best way to preserve the battery long term. From my past understanding, if you take your battery all the way down and then charge it to 100%, then that was a full cycle. More cycles = degraded battery over time.
Not sure if this still holds true for li-ion batteries today.
Edit: My thought here is to leave it on the charger whenever I can, thus minimizing the cycles I put on the battery.
blazinazn said:
While at work, I leave my phone plugged in and charged at all times.
I don't have exact temperatures but I've noticed that it is warm the whole time. Anyone else notice this?
Click to expand...
Click to collapse
blazinazn said:
Yes, using the official charger. I also failed to mention that I have a case on my phone. Not sure if that is contributing to it.
Is it because charging to 100% counts as a full cycle? I will admit that I'm not up to snuff on battery tech and what the best way to preserve the battery long term. From my past understanding, if you take your battery all the way down and then charge it to 100%, then that was a full cycle. More cycles = degraded battery over time.
Not sure if this still holds true for li-ion batteries today.
Edit: My thought here is to leave it on the charger whenever I can, thus minimizing the cycles I put on the battery.
Click to expand...
Click to collapse
My suggestion is download accubattery, it will tell you your battery temperature and also it calculates the degredation and health of your battery. It will also explain how many cycles of wear you are adding to the phone.
Back in the old days with nickel cadimium batteries you needed to do the whole 0-100 thing, that was good for battery memory... But modern day lithium batteries actually are better being topped off and kept between 20-80% in an ideal world. So deep discharges and high % charges wear out your battery significantly faster... This is why electric cars often limit charge, by doing this they can extend the life of the battery cells quite dramatically.... but if you are upgrading yearly, don't worry about it.
Here is an article that will help you.
EDIT: try charging with and without the case and see if it gets hot, definitely cases can be an insulator. You can monitor temp in accubattery.
https://www.wired.co.uk/article/how-to-improve-battery-life-tips-myths-smartphones
The idea that there is a set number of charging cycles for a particular battery, and every time you charge the phone you use up one of those cycles regardless of how much it charges (ie a 10% charge and a 100% charge both use one charging cycle) isn't how modern cell phone batteries work.
As noted, it is best to not charge your phone to 100%, nor do you want to discharge your battery to 0%. It is best to charge it more frequently for a smaller amount of charge each time as well. So charging a phone 10% ten times is better for the better than charging the battery once for 100%.
Heat is also a huge problem with batteries and the hotter a battery gets, the shorter life expectancy it will have. So definitely look into the issue.
If rooted, there are a couple of Magisk modules that control charging. They usually will automatically pause charging if the battery gets too high of a temp. Once a preset time has passed, it will restore charging again. The idea being that the pause in charging will allow the battery temps to drop. You can also limit the battery max charge to another value other than 100% if you want. 80% max charge is suppose to be the sweet spot for battery longevity, but anything less than 100% is going to add life to your battery.
Just so you know the phone does not charge to 100% or allow you to discharge the battery completely. Your phone just shows that you are at 100% when charged as much as allowed and discharged as much as allowed when you reach 0% charge. The partial charge thing no longer has much of any effect since the phone is doing it for you already but the internet hasn't' caught up to that yet. These chargers do stop charging at full and your phone should not be warm if it's charged but unused. So... are you using while on the charger? That's not a great idea because it's going to kick it into charge over and over. The fellow above was correct about using proper cables, I'm not sure that's much of a problem anymore but there still may be some ringers on Amazon and elsewhere. You could also have something discharging the battery enough to get it to charge continuously or close enough to it to warm the phone up over time, a wake lock can do it for example. Those can keep the phone on charge enough to warm it up.
In general with charging it's going to be best to keep your charging and total cycles down because capacity loss during charging is a real issue due to physical deterioration and transfer of materials in the battery caused during the charge. You would be better served by allowing it to discharge at least somewhat and only charging as needed rather than keeping it plugged in. Since you're at work it should be fairly easy to plan your charging so that you'll be able to get through the day without the constant charge. Not saying wait until it dies and then charge, that would be inconvenient, just that you would get more life if you reduced your charge cycles.
No matter what your phone is getting warm something needs to be addressed if it's doing so when not used but plugged in. The charger should stop for long periods and the phone should be cool after the charge completes.