Related
I was reading about Li-Po battery's, and I found out that these batteries might over-charge and go ka-boom.
Is this true? Does anyone have any knowledge with these batteries, and is this at all a Draw back for the N4?
Edit: Okay, so I was just scoping around and I think this source might be incorrect, but it seems like recharging these batteries have precautions, like certain time-limits. Maybe this is for removable batteries, but none the less these batteries seem more complicated than Li-Ion.
Here's a guide for charging Li-Po's that states overcharging is bad: http://www.ehow.com/how_6049668_method-charge-lithium-polymer-battery.html
Link to this?
Sent from my SGH-T999 using xda app-developers app
Aren't Li-poly batteries actually safer than Li-ion?
That's the Technology used on Mac Book Pros and the iPads ... They are supposed to have faster and longer charging cycles among other advantages like being lighter and have more accurate power readings... But i could be wrong so please correct me if I'm misinformed ?
---------- Post added at 12:33 AM ---------- Previous post was at 12:32 AM ----------
jacklebott said:
Aren't Li-poly batteries actually safer than Li-ion?
Click to expand...
Click to collapse
See that's what I tough too ?
Don't wanna start a war here but the battery on my new iPad it's fantastic ! Even on LTE I get like 2 days plus of heavy use..
LiPo or Lithium polymer batteries have a much higher power/weight/size ratio then typical Li-Ions, which makes them awesome for portable devices. The downside is that they are very temperamental as far as discharging and charging goes. Cells need to be leveled and managed independently when charging, punctures in the battery can cause it to catch fire, and have been known to create explosive fireballs when overcharged.
While it is true that over-charging a LiPo can make it catch fire, there will be controllers in place to prevent this from happening. These things are quite fussy. Even letting a LiPo drain below a certain percentage can be detrimental to the health and longevity of the battery, 20% of the battery's total capacity is often regarded as the minimum safe charge. It is also recommended to keep a 50-60% charge in a LiPo if storing it for long periods of time.
Fortunately, there will be a LiPo controller on the phone which will manage all of the dirty work for us. I imagine a ~20% charge on the LiPo will be regarded as 0% for the phone, as to not allow the battery's voltage to drop too low. Charging will be managed with independent cell leveling, and it will make sure the battery is not over-charged.
I really do not believe that, as a consumer we will have to worry about the battery or how its charging. We will just get to enjoy the awesome battery life associated with the LiPo.
Awesome thanks for clearifying it for me. You said that 20 percent might equal 0, so does that mean 2100mah will be cut short?
LiPo batteries are awesome. I still have my SE K750i and the battery life, despite over 4 years of use, is still amazing. I don't use it anymore but the battery still seems to keep most of a full charge unlike other cell phones (Siemens C65) which cant even maintain enough charge to power on after charging.
I don't think you would have to worry about the 2100mAh rating... I fiddled around with RC vehicles before and I ran one off of a parallell pack of Lipos, that should equal 10Ah which gave me about 1 hour and 45 minutes of "play time" with my truck(brushless outrunner motor and a mamba monster). It should be noted that after those 1 hour and 45 minutes the batteries still held up pretty well but the motor was glowing hot, never had any troubles with anything until I torched the motor because of the prolonged runtimes I was getting...
http://youtu.be/0Yg88tg71m4
Interestingly, if you go into device info (*#*#4636#*#*) and hit battery information, it lists the battery as using Li-Ion technology, can anyone else confirm this? If so, there may be more to this than just a LiPo battery.
We all know that the One (and many other modern cellphones) have a Lithium Ion battery. While these batteries have no traditional 'memory effect' the way NiMH did, it seems that different chemistries for the electrolyte would suggest different strategies for recharging.
For example, after looking at the Wikipedia entry for Lithium batteries, it would seem that we should be mindful about 'topping off' the battery, because charging deteriorates the lifespan, implying that running down the battery might be a more advisable practice than plugging in to fully charge every night.
Wondering if any of you experts out there can comment and discuss, given that we One users no longer have replacable cells.
Good question, I too would be very interested in hearing from some of the posters that are knowledgeable in this area.
Sent from my HTC EVO 3D X515m using xda premium
This is pretty well established knowledge right now. I'll list everything pertinent about lithium ion batteries and charging smartphones:
Edit: Note that I mention Lithium Ion in this post, but the HTC One uses Lithium Polymer. They are for all intents and purposes equal in terms of their usability, except for slightly less charge cycles
Edit 2: Hello Reddit! No idea this would have taken off. I'm "coolmatty" on reddit. This is an overall generalization, and there are plenty of resources that go into more detail. Places like Battery University are great sites to start.
1. Charging is what reduces the life of a lithium ion battery. Batteries are usually rated between 700-1000 charge cycles while keeping 90% of their capacity.
2. Charging 0-100% counts as one cycle. Charging 80-100% 5 times counts as one cycle.
3. Leaving your phone on the charger after it is charged has the potential to reduce battery life, although this is less of a problem with newer devices as they often disconnect the charging circuit until the battery drops below ~95%. Generally only an issue if you leave it on the charger for 24+ hours.
4. Lithium ion batteries do not require any conditioning.
5. Most lithium ion devices arrive with ~40-50% battery life remaining, because this is the optimal charge level to store a lithium battery for long periods (such as sitting on a store shelf for months).
6. Slower charging maintains the battery's overall lifetime capacity better than fast charging. This is likely why the HTC One does not have Qualcomm's Quick Charge enabled. It's debateable whether you'd notice the effects over the typical lifetime of a smartphone, however (2 years).
7. Not exactly related to lithium but just in general: smartphones (and tablets, etc) have charging circuits that only draw a certain amount of amps regardless of the number of amps the charger provides. Using a 3.1 amp (tablet-level) charger is not going to significantly increase the speed at which your phone charges. Most phones only use between 0.8 - 1.2 amps. Anything over that is overkill.
8. Storing a lithium ion battery at 0% is really bad for its lifetime capacity. Running it to 0% generally isn't recommended all the time, but a few instances won't hurt it.
9. Recharging from 0-100 doesn't make your battery run longer. It can, however, reset Android's battery level stats so that it can more accurately state the battery level.
10. Charging from ~95% to 100% takes a long time because it must do a trickle charge. Maxing out the battery like this can reduce overall lifetime capacity, but generally not enough to matter. You'll see this impact more often in larger applications of lithium batteries (like cars).
You have no idea how many people need this post (on some points, myself included). Thanks.
Vincent Law said:
2. Charging 0-100% counts as one cycle. Charging 80-100% 5 times counts as one cycle.
Click to expand...
Click to collapse
It does not seem to be that uniform, according to this:
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
From what I understood from the link above in Table 2, you can get the best longevity by charging from 50% (2nd row).
jasahu said:
It does not seem to be that uniform, according to this:
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
From what I understood from the link above in Table 2, you can get the best longevity by charging from 50% (2nd row).
Click to expand...
Click to collapse
But is it practical to charge it at 50% every time?
Doesn't the one infact have a Li-Po battery ? Would these points still apply ?
Nyxagamemnon said:
But is it practical to charge it at 50% every time?
Click to expand...
Click to collapse
What is a practical approach for me now, after reading this all, is to charge it every night.
This way
- I have better chances for not running out of battery during the day
- either it was at 75% (3rd row) or 50% (2nd row) I still have better longevity than charging from 0% most of the time.
Battery life will not degrade as long as you donot empty its charge for long time and donot use it while on charge... over heat on battery aged the battery...
Sent from my GT-I9082 using xda premium
Just wanted to add: li-ion and li-po batteries now-a-days have protection circuitry to prevent overcharge and over-discharge. Overcharge protection based on what is stated above, known as trickle charge. Over-discharge protection means that your phone will shut off when your battery is around 3v per cell, whereas you should refrain from force starting the phone. The only benefit you get from fully charging/discharging is battery calibration for cell mismatches. It is also good to know that partial charges are better than full charges when it comes to lithium ion (and lithium polymer) batteries.
The HTC one uses li-poly, not li-ion
Can read all about the advantages and disadvantages of each other here:
http://batteryuniversity.com/learn/article/is_lithium_ion_the_ideal_battery
li-poly
Advantages
Very low profile - batteries resembling the profile of a credit card are feasible.
Flexible form factor - manufacturers are not bound by standard cell formats. With high volume, any reasonable size can be produced economically.
Lightweight - gelled electrolytes enable simplified packaging by eliminating the metal shell.
Improved safety - more resistant to overcharge; less chance for electrolyte leakage.
Limitations
Lower energy density and decreased cycle count compared to lithium-ion.
Expensive to manufacture.
No standard sizes. Most cells are produced for high volume consumer markets.
Higher cost-to-energy ratio than lithium-ion
Click to expand...
Click to collapse
As far as I am concerned, li-poly is overall better for phones where you can't change the battery.
by the looks of that article it was done quite a while ago (for the tech. world) so the disadvantages might not be as much of a problem these days.....
jasahu said:
It does not seem to be that uniform, according to this:
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
From what I understood from the link above in Table 2, you can get the best longevity by charging from 50% (2nd row).
Click to expand...
Click to collapse
I was using a simplification. It would be better not to let it go to 0, but most charge cycles are rated on this. I do mention the impact of letting the battery go to 0%.
Miketoberfest said:
Doesn't the one infact have a Li-Po battery ? Would these points still apply ?
Click to expand...
Click to collapse
A flub on my part, you are correct. There are minor differences (the only one that matters to us is slightly shorter lifetime capacity) but otherwise it works the same.
Now that i see a battery 'expert', a quick question.
Back in the dack, if you bought anything with batteries, you would have to charge them for 24h, no matter how much charged they were. But if i were to buy a phone today (Lith-Ion), Do i still have to do that?
I think not, but i'm not quite sure. Lots of people (even smartphone sellers) still recommend charging it 24h, wich i think is bull.
Bartcore3 said:
Now that i see a battery 'expert', a quick question.
Back in the dack, if you bought anything with batteries, you would have to charge them for 24h, no matter how much charged they were. But if i were to buy a phone today (Lith-Ion), Do i still have to do that?
I think not, but i'm not quite sure. Lots of people (even smartphone sellers) still recommend charging it 24h, wich i think is bull.
Click to expand...
Click to collapse
I think that was only for the old Ni-MH batteries as they had to be bedded in as such. The newer ones dont need this
Vincent Law said:
This is pretty well established knowledge right now. I'll list everything pertinent about lithium ion batteries and charging smartphones:
1. Charging is what reduces the life of a lithium ion battery. Batteries are usually rated between 700-1000 charge cycles while keeping 90% of their capacity.
2. Charging 0-100% counts as one cycle. Charging 80-100% 5 times counts as one cycle.
3. Leaving your phone on the charger after it is charged has the potential to reduce battery life, although this is less of a problem with newer devices as they often disconnect the charging circuit until the battery drops below ~95%. Generally only an issue if you leave it on the charger for 24+ hours.
4. Lithium ion batteries do not require any conditioning.
5. Most lithium ion devices arrive with ~40-50% battery life remaining, because this is the optimal charge level to store a lithium battery for long periods (such as sitting on a store shelf for months).
6. Slower charging maintains the battery's overall lifetime capacity better than fast charging. This is likely why the HTC One does not have Qualcomm's Quick Charge enabled. It's debateable whether you'd notice the effects over the typical lifetime of a smartphone, however (2 years).
7. Not exactly related to lithium but just in general: smartphones (and tablets, etc) have charging circuits that only draw a certain amount of amps regardless of the number of amps the charger provides. Using a 3.1 amp (tablet-level) charger is not going to significantly increase the speed at which your phone charges. Most phones only use between 0.8 - 1.2 amps. Anything over that is overkill.
8. Storing a lithium ion battery at 0% is really bad for its lifetime capacity. Running it to 0% generally isn't recommended all the time, but a few instances won't hurt it.
9. Recharging from 0-100 doesn't make your battery run longer. It can, however, reset Android's battery level stats so that it can more accurately state the battery level.
10. Charging from ~95% to 100% takes a long time because it must do a trickle charge. Maxing out the battery like this can reduce overall lifetime capacity, but generally not enough to matter. You'll see this impact more often in larger applications of lithium batteries (like cars).
Click to expand...
Click to collapse
Thanks Vincent. Great post will certainly bear it all in mind when charging my phone.
Sent from my HTC EVO 3D X515m using xda premium
ragingredbull said:
Thanks Vincent. Great post will certainly bear it all in mind when charging my phone.
Sent from my HTC EVO 3D X515m using xda premium
Click to expand...
Click to collapse
I'm not sure everyone noticed one of the things he said. I know from my HD2 and Ruby that HTC phones will not continue charging after hitting 100%. The phone will indicate %100, but shortly after you disconnect the charger and start using the phone the indicated power level will drop to what it actually is - and it will be lower depending upon how long it has been sitting at "100%". Their phones have a protection circuit that kicks in. So if you really want 100% in the morning, power the phone down to charge it.
Bartcore3 said:
Now that i see a battery 'expert', a quick question.
Back in the dack, if you bought anything with batteries, you would have to charge them for 24h, no matter how much charged they were. But if i were to buy a phone today (Lith-Ion), Do i still have to do that?
I think not, but i'm not quite sure. Lots of people (even smartphone sellers) still recommend charging it 24h, wich i think is bull.
Click to expand...
Click to collapse
As I mentioned in my first post, Lithium batteries do not require conditioning. The purpose for this on old Ni-Cad batteries was to avoid the memory effect, which could result in a battery appearing to be dead long before it actually was. For instance, if you always charged it from 60%, after many instances of this, the Ni-Cad battery would suffer a voltage drop at that point, which most electronics can't handle (some can, however, and once past the short period of low voltage, they will recover and continue normally).
Charging for 24 hours is most certainly not relevant, as once the battery reaches 100%, charging has ceased anyway. There's no need to charge it to 100% anyway, other than to give you more time to play with your new toy
---------- Post added at 01:44 PM ---------- Previous post was at 01:41 PM ----------
stevedebi said:
I'm not sure everyone noticed one of the things he said. I know from my HD2 and Ruby that HTC phones will not continue charging after hitting 100%. The phone will indicate %100, but shortly after you disconnect the charger and start using the phone the indicated power level will drop to what it actually is - and it will be lower depending upon how long it has been sitting at "100%". Their phones have a protection circuit that kicks in. So if you really want 100% in the morning, power the phone down to charge it.
Click to expand...
Click to collapse
You'll see this in most devices nowadays. It's especially noticeable on laptops, which typically won't lie to you about the charge. It depends on the models, but I know Macbooks for instance will happily sit at 95% charge as "fully charged". This is by design and other than turning off the device, you shouldn't try to "top it off". Any other method (such as unplugging and plugging it back in) hurts the overall lifetime of the battery.
Vincent Law said:
...
You'll see this in most devices nowadays. It's especially noticeable on laptops, which typically won't lie to you about the charge. It depends on the models, but I know Macbooks for instance will happily sit at 95% charge as "fully charged". This is by design and other than turning off the device, you shouldn't try to "top it off". Any other method (such as unplugging and plugging it back in) hurts the overall lifetime of the battery.
Click to expand...
Click to collapse
Most of the modern laptops allow you to turn on or off the battery saving feature. For those who use the laptop while plugged in most of the time, it will stop charging at 80%. For those who will be using it off the plug, the option is there to get it to 100%.
I often see posts from people (in various forums) asking why their laptop will only charge to 80%...
stevedebi said:
Most of the modern laptops allow you to turn on or off the battery saving feature. For those who use the laptop while plugged in most of the time, it will stop charging at 80%. For those who will be using it off the plug, the option is there to get it to 100%.
I often see posts from people (in various forums) asking why their laptop will only charge to 80%...
Click to expand...
Click to collapse
I've never heard of this, and I don't recall seeing it on any Windows or Mac laptop I've used recently. Sounds like some proprietary crap one of the manufacturers came up with. Stopping the charge at 80% doesn't make much sense, since you'll still have the issue of constantly recharging the battery (as soon as it drops below 80%).
Edit: I will say that it is marginally better than keeping it at 100%, but that said, there's steps you can take on your own that are much better.
The ideal way to use a laptop that will be plugged in for most of its lifetime is to discharge it to about 45%, and then remove the battery entirely. At that point, the battery can maintain its capacity for months without major issue. Just make sure to recharge it once every 3 months or so, as the battery will discharge (slowly) even while unplugged, but at a far slower rate than it would be inside the laptop.
Vincent Law said:
I've never heard of this, and I don't recall seeing it on any Windows or Mac laptop I've used recently. Sounds like some proprietary crap one of the manufacturers came up with. Stopping the charge at 80% doesn't make much sense, since you'll still have the issue of constantly recharging the battery (as soon as it drops below 80%).
Edit: I will say that it is marginally better than keeping it at 100%, but that said, there's steps you can take on your own that are much better.
The ideal way to use a laptop that will be plugged in for most of its lifetime is to discharge it to about 45%, and then remove the battery entirely. At that point, the battery can maintain its capacity for months without major issue. Just make sure to recharge it once every 3 months or so, as the battery will discharge (slowly) even while unplugged, but at a far slower rate than it would be inside the laptop.
Click to expand...
Click to collapse
The latest research from the Auto manufacturers is that Li-Ion technology works longest if the battery level is between 50 and 80%.
My Toshiba U925 ultra portable uses the optional 80% max. If you use the laptop almost exclusively while plugged in, it will help provide battery longevity, or so I understand.
Many laptops won't work unless the battery is in place. It depends on how they built the power circuits.
Good day,
For the new battery owners and frequent questions of charging and prolonging/maintaining your battery.
Here are some information from other websites. Just for the sake of laziness and Google-ing :highfive:
I know most of you guys already knows this. Yes, I know. These are reminders that you should.
Please do not flame or criticize my thread. I am just here to help. Thank you!
1.) It's not necessary to charge over 12 hours when first used. When a device powered by batteries is purchased, sellers will usually tell us the batteries must first be charged 12 hours before using. Actually, this is unnecessary. Unlike common Ni-CD or Ni-MH batteries, most lithium ion batteries have been activated before leaving the factory. Due to its low self-discharge, it’s unnecessary to charge lithium ion battery for such a long time when new. Lithium ion batteries are ready for use after the charger indicates so, and it will reach its best capacity after 3 or 5 cycles
2.) Don’t use an inappropriate charger. Many people care greatly about their electronic gadgets, but often neglect the consequences of bad chargers on their lithium ion batteries. When choosing a charger, the original charger is the best choice. If that's unavailable, a high quality charger that has an over charge protection function, or a brand name charger will do. A low quality battery charger can lead to shorter run times, premature battery failure, or even cause a fire or explosion.
3.) Avoid touching metal contacts. All batteries' contacts need to be kept clean for best performance. Do not let battery contacts touch metal objects such as keys when carrying them around, it can cause a short circuit, damaging the battery or potentially resulting in a fire or an explosion.
4.) Avoid often use in high or low temperature environment. Lithium ion batteries have an optimal working and storage temperature. If they're continually used an extreme temperature environment, it will negatively affect the lithium ion battery’s use time and useful cycles.
5.) Avoid long time without use or recharge. If you don't need to use your personal electronic gadgets for a long time where the lithium ion battery might be to left unused for 3 months or more, partially recharge the lithium ion battery, then store the device (recharge the battery to around 30-70% of capacity, depending on storage time) to prevent battery damage. You may need to take the device out of storage and charge again after a few months.
6.) Avoid use lithium ion battery which is hot after being fully charged. Temperatures can be very high after the battery is freshly recharged. If you use it immediately, the electronic gadget’s internal temperature will rise, and can negatively affect the device's electronic components.
Click to expand...
Click to collapse
XDA Users' Recommendation:
@apallohadas
DO NOT turn off your phone to charge the battery. This is completely unnecessary as the protection is built into the battery, not the phone.
Click to expand...
Click to collapse
@adytum
Nice thread, and thank god you didn't mention anything about wiping battery stats
To prevent confusion, I suggest you remove the part about overcharging in case of lacking overcharge protection, since practically every phone has it, and thus prevent the type of semantic discussion that was going on here.
Click to expand...
Click to collapse
@m4xwellmurd3r
I wanted to add that I think the reason people think they need to charge the phone, then turn it off and charge it more and repeat comes from older android phones. The OG Evo was very bad with its battery stats and even if the phone was discharging it would continue to state 100% when it was plugged in. A bad cable caused my girlfriends phone to drain low enough that it couldnt be charged in the phone because the os never thought it was below 100%.
The old evo would shut off its charge circuit at 100% and kick it back on at 90%, but never show that it had discharged any. This resulted in massive percieved drain after unplugging the phone.
By charging it to 100 while on, unplugging and turning off, then charging back up while off, and repeating the process till the charging to charged indicator had a shortened delay, the battery would last longer because it calibrated not the battery, but androids internal battery states that indicated what its true 100% mark was.
But the systems ability to learn what voltages indicate 100% and 0% have become much better from what I can tell, and using that outdated method to force android to learn the min max points is now pointless.
The other issue was the old evo didnt trickle charge. From 100% it totally kicked the charge circuit off, and at 90% kicked it back on, while never reporting anything below 100% when the cable was plugged in.
Click to expand...
Click to collapse
Question:
If I am not going to use my battery for a long period of time, what should I do?
Answer:
Be sure the battery is above 40%
Put the battery in an air sealed zip locked bag and place it inside the refrigerator but not the freezer!
This will slow down the deterioration of the battery.
Click to expand...
Click to collapse
Credits to:
WikiHow
XDA-Developers
CandlePowerForums
Google
Applications To Give You Better Battery Life
Greenify
Greenify helps you identify and put the bad behaving apps into hibernation when you are not using them, to stop them from lagging your device and leeching the battery, in an unique way! They can do nothing without explicit launch by you or other apps, while still preserving full functionality when running in foreground, similar to iOS apps!
DisableService
Disable Service helps you to disable services running in the background such as "push service" ,"upload service" or "pull ad service" and so on.
Wakelock Detector
”Wakelock Detector” helps you to detect battery consuming applications in your Android device by checking wakelock usage history. Now you can find out which applications drain your battery in a simple way by using this app!
SystemCleanup
*best system / cache cleaner in market ;o) hold your system clean and free of bloatware. disable autostart / autorun of apps and services. Also tells what applications are safe to freeze with descriptions.
Applications suggested by @Memphis_
Autorun Manager
Autorun Manager (formerly Autorun Killer) is an ultimate tool that lets you disable all the autostarting apps you don't need. Unfortunately this app is misunderstood many times so please read help carefully and/or mail the developer if you have questions.
Autostarts
Keep control over your phone: See what applications do behind your back.
Shows you what apps run on phone startup, and what other events trigger in the background. Root users can disable unwanted autostarts and speed up their phone boot.
I would add:
DO NOT turn off your phone to charge the battery. This is completely unnecessary as the protection is built into the battery, not the phone.
apallohadas said:
I would add:
DO NOT turn off your phone to charge the battery. This is completely unnecessary as the protection is built into the battery, not the phone.
Click to expand...
Click to collapse
Thanks. Added to the OP.
Simone said:
Thanks. Added to the OP.
Click to expand...
Click to collapse
Define over charging
ksc6000 said:
Define over charging
Click to expand...
Click to collapse
Continuous charging of the battery after it reaches full charge.
Generally, overcharging will have a harmful influence on the performance of the battery which could lead to unsafe conditions.
It should therefore be avoided.
Simone said:
Continuous charging of the battery after it reaches full charge.
Generally, overcharging will have a harmful influence on the performance of the battery which could lead to unsafe conditions.
It should therefore be avoided.
Click to expand...
Click to collapse
Not to belittle the intent of the contribution and all, but you contradict yourself, and the majority of the info provided is completely inapplicable to the application.
It's dismaying to see battery technology reduced to superstitious ritual.
Sent from my GT-N7100 using Tapatalk 4 Beta
G.Reaper said:
Not to belittle the intent of the contribution and all, but you contradict yourself, and the majority of the info provided is completely inapplicable to the application.
It's dismaying to see battery technology reduced to superstitious ritual.
Sent from my GT-N7100 using Tapatalk 4 Beta
Click to expand...
Click to collapse
I'm actually trying to get out of the ritual.
G.Reaper said:
Not to belittle the intent of the contribution and all, but you contradict yourself, and the majority of the info provided is completely inapplicable to the application.
It's dismaying to see battery technology reduced to superstitious ritual.
Sent from my GT-N7100 using Tapatalk 4 Beta
Click to expand...
Click to collapse
Actually, the majority is pretty spot on and does much to get people away from the rituals of draining batteries unnecessarily and other practices meant for other battery technologies.
You could be helpful by constructively adding, you know.
apallohadas said:
Actually, the majority is pretty spot on and does much to get people away from the rituals of draining batteries unnecessarily and other practices meant for other battery technologies.
You could be helpful by constructively adding, you know.
Click to expand...
Click to collapse
Just because you asked so nicely.
Simone said:
2.) Don’t use an inappropriate charger. Many people care greatly about their electronic gadgets, but often neglect the consequences of bad chargers on their lithium ion batteries. When choosing a charger, the original charger is the best choice. If that's unavailable, a high quality charger that has an over charge protection function, or a brand name charger will do. A low quality battery charger can lead to shorter run times, premature battery failure, or even cause a fire or explosion.
3.) Avoid frequently over charging. Over charging with a low quality charger may let the battery's interior rise to a high temperature, which is bad for the lithium ion battery and charger. Thus, simply fully charging is good enough - overcharging will make your lithium battery into a little bomb if over charge protection function is missing.
Click to expand...
Click to collapse
and
Simone said:
Continuous charging of the battery after it reaches full charge.
Generally, overcharging will have a harmful influence on the performance of the battery which could lead to unsafe conditions.
It should therefore be avoided.
Click to expand...
Click to collapse
are at odds.
I'd be interested to see your source(s) for the charging behavior of the integrated circuitry once the battery is full and the negative impacts thereof. I'm not saying that overcharging a cell isn't bad. But the battery in your phone has ic, regulating the exposure to the cell. Meaning that given that self-discharge is a characteristic of Li ion batteries, overcharge doesn't seem to be a likely concern.
Additionally, if the protection ic is in the battery, why would you need a charger with built in charge protection? This is info from hobby cells, which are bare Li ion cells. You really think the usb wall wart samsung ships you is anything more than an ac to dc, step down voltage converter? I'm open to evidence to the contrary.
The danger in Li ion is typically in in over discharge, and in charging too quickly, resulting in a cycle of increasing uncontrolled internal resistance, potentially causing combustion. The charge rate should be protected by the battery's ic, and as the battery will say it's empty before breaching the threshold of damaging discharge, it just translates to "don't leave the thing alone in a drawer for a long time with no charge", which you effectively covered.
And what's not mentioned, is that no matter what you do, no matter the obsessive charging ritual you observe, current Li ion technologies will see a roughly 10% decrease in performance per year.
Don't worry about your battery and charge it as much as you want over charge it at night. Then buy a new one a year later after that one you will have a new phone. No worries.
Sent from my GT-N7105 using xda app-developers app
dazza7111 said:
Don't worry about your battery and charge it as much as you want over charge it at night. Then buy a new one a year later after that one you will have a new phone. No worries.
Sent from my GT-N7105 using xda app-developers app
Click to expand...
Click to collapse
Exactly!
G.Reaper said:
Just because you asked so nicely.
Click to expand...
Click to collapse
I ask because it's easier to be sarcastic on the internet than to be helpful.
I'd be interested to see your source(s) for the charging behavior of the integrated circuitry once the battery is full and the negative impacts thereof. I'm not saying that overcharging a cell isn't bad. But the battery in your phone has ic, regulating the exposure to the cell. Meaning that given that self-discharge is a characteristic of Li ion batteries, overcharge doesn't seem to be a likely concern.
Click to expand...
Click to collapse
Normally I would agree, but some of the overcharging advice I've seen here includes charging the phone to full, then shutting it off, and letting it charge for hours longer. All in an attempt to circumvent safeguards. Weird yes, ritualistic, sure, will Samsung get blamed if the battery melts? Definitely.
Pretty good article on Lithium based batteries:
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
The danger in Li ion is typically in in over discharge, and in charging too quickly, resulting in a cycle of increasing uncontrolled internal resistance, potentially causing combustion. The charge rate should be protected by the battery's ic, and as the battery will say it's empty before breaching the threshold of damaging discharge, it just translates to "don't leave the thing alone in a drawer for a long time with no charge", which you effectively covered.
And what's not mentioned, is that no matter what you do, no matter the obsessive charging ritual you observe, current Li ion technologies will see a roughly 10% decrease in performance per year.
Click to expand...
Click to collapse
And what you said fairly agrees with the article. (Depending on charging habits of course.)
apallohadas said:
Normally I would agree, but some of the overcharging advice I've seen here includes charging the phone to full, then shutting it off, and letting it charge for hours longer. All in an attempt to circumvent safeguards. Weird yes, ritualistic, sure, will Samsung get blamed if the battery melts? Definitely.
Click to expand...
Click to collapse
That won't really do anything. Logically, if the phone's off, there won't be a load on the battery, thus it's free to charge at the maximum rate as controlled by the ic. But, that doesn't mean it'll end up any different at 100% from charging with the phone on.
Again I reference the fact that the battery contains the control circuitry, not the phone.
G.Reaper said:
That won't really do anything. Logically, if the phone's off, there won't be a load on the battery, thus it's free to charge at the maximum rate as controlled by the ic. But, that doesn't mean it'll end up any different at 100% from charging with the phone on.
Again I reference the fact that the battery contains the control circuitry, not the phone.
Click to expand...
Click to collapse
I don't recall saying anything to the contrary.
apallohadas said:
I don't recall saying anything to the contrary.
Click to expand...
Click to collapse
You wrote "DO NOT turn off the phone while charging" - it doesn't matter whether you do or not.
Anyway, my point was just that points 2 and 3 are wrong given the application and should be omitted as they taint the rest of the information.
G.Reaper said:
You wrote "DO NOT turn off the phone while charging" - it doesn't matter whether you do or not.
Click to expand...
Click to collapse
I responded directly to your statement:
you said:
Again I reference the fact that the battery contains the control circuitry, not the phone.
Click to expand...
Click to collapse
At least attempt to not misquote me. It's like you argue just to argue even when in agreement.
If you don't like the thread, rate it 1 star and just keep on moving.
That simple.
G.Reaper said:
I'd be interested to see your source(s) for the charging behavior of the integrated circuitry once the battery is full and the negative impacts thereof. I'm not saying that overcharging a cell isn't bad. But the battery in your phone has ic, regulating the exposure to the cell. Meaning that given that self-discharge is a characteristic of Li ion batteries, overcharge doesn't seem to be a likely concern.
Additionally, if the protection ic is in the battery, why would you need a charger with built in charge protection? This is info from hobby cells, which are bare Li ion cells. You really think the usb wall wart samsung ships you is anything more than an ac to dc, step down voltage converter? I'm open to evidence to the contrary.
The danger in Li ion is typically in in over discharge, and in charging too quickly, resulting in a cycle of increasing uncontrolled internal resistance, potentially causing combustion. The charge rate should be protected by the battery's ic, and as the battery will say it's empty before breaching the threshold of damaging discharge, it just translates to "don't leave the thing alone in a drawer for a long time with no charge", which you effectively covered.
And what's not mentioned, is that no matter what you do, no matter the obsessive charging ritual you observe, current Li ion technologies will see a roughly 10% decrease in performance per year.
Click to expand...
Click to collapse
I second that. Android devices en mass use integrated chargers and protected batteries. In that case using cheap charger could possibly demage buildin charger rather than battery itself.
And almost all wall chargers for phone and tablets are simple power source. An modern one with ac-dc IC regulators but still act as ordinary power source.
Wysyłane z mojego GT-N7100 za pomocą Tapatalk 2
dazza7111 said:
Don't worry about your battery and charge it as much as you want over charge it at night. Then buy a new one a year later after that one you will have a new phone. No worries.
Sent from my GT-N7105 using xda app-developers app
Click to expand...
Click to collapse
I agree 100%.
Although most advices in the OP are correct I don't agree there is a thing like "overcharging" - there is a circuity to prevent charging when the battery is fully charged.
So avoid myths, just use your device, batteries are not that expensive
I have a lot of old cell phone batteries I had just purchased for my original Samsung galaxy just lying around would it be possible to maybe hook them all together somehow and make a large battery pack?
Sent from my SGH-T999 using Tapatalk 2
It would be possible. That's how those powerbanks works. But then it might be dangerous though
Sent from my GT-N7105 using xda app-developers app
Absolutely do not use unmatched batteries if constructing a battery pack, you are just asking for trouble - as in "fire" trouble.
They really need to all be at the same point in their life to work safely, which yours sound like they are not. Buy a battery pack, stay safe. (And yes, I build battery pack stuff, so I'm not against modding).
Cool thanks for the reply.
Sent from my SGH-T999 using Tapatalk 2
Imposible
mha93 said:
It would be possible. That's how those powerbanks works. But then it might be dangerous though
Sent from my GT-N7105 using xda app-developers app
Click to expand...
Click to collapse
No, it's crazy I believe what you're doing. The technology in the batteries of cell phones has changed little. Try looking for a larger storage battery that the manufacturer himself has designed. Greetings!
And please do not forget that the batteries must be disposed of in special places (organizations), for the sake of the environment. :angel:
sell/craigslist them and get a higher mAH battery.
Thank you guys. I think I will just look on Amazon instead lol I don't want to try anything dangerous
Sent from my SGH-T999 using Tapatalk 2
The powerbank using multiple Li-ion is technically possible, but not-recommended.
The reasoning behind this, not all batteries are electrically the same. Unless you can confirm that the batteries all came from the same batch and where all subjected to the same amount of wear, the electrical properties of each Li-ion battery with be different.
Some simplified electrical theory explaining why it's not a good idea (slightly wordy and technical in nature but understandable) ,
Current itself is the flow of electrons, with each electron having some electrical energy. When these electrons flow thru a circuit, they end up colliding with the internal molecular structure of the path. Overtime the molecular structure of the Li-ion battery alters to a point where it no longer behaves as a practical battery (this is why they only last around two years or so).
when the electrons collide with the molecular structures some of the energy the electron carry is given off as heat. The rate of which this is produced is an exponential function of the current: (Heat in units of Wattage)=(current)^(2)*(Resistance), or as a function of the energy per electron (voltage) times the number of electrons (current).
some more important equations
Voltage=Resistance*current
in a series circuit, the voltage must all equal to zero with current being the same across all the components: (internal voltage drop of the battery)+(voltage drop of the load)=0 (This is known as Kirchhoff Voltage Law).
From this overtime more energy is lost within the battery due to its increasing resistance, so for a device needing a minimum voltage, more current is needed to supply the same amount of energy at one point in time
Unless the current is regulated, the battery could be subjected to more heat causing a combustion hazard.
This is why batteries need current regulation (flow of electrons).
Hope this gives a rough idea why its best to consider consumer/professional UL listed products.
Joe (Electrical Engineering Student)
any new tech other than Li-Poly
Maybe rather....
Third party batteries (good ones) and power-batteries are nowadays good solution for longer battery life. Some batteries are slightly bigger to "pack" more mAh and get delivered with the covers which fit the bigger battery size.
Possible but better don't do it
I think it's possible but all of them should have the same voltage and capacity...
Then other technical problems might occur.
Not asking the obvious here.
I'm wondering if I can replace the battery a year or two down the line, assuming I have a respectable arsenal of tools. I know batteries wear out, and I'd like to keep this phone alive as long as I can.
Was wondering this as well. I watched a takedown vid and it appears like the battery is molded for formed into part of the rear framework or something. They didn't show it being removed. But you can get to it so someone will probably make a replacement I'm guessing.
Video I saw, battery looks like a bear to replace.
Can it be done? Yes. Is it worth it? The answer to that question depends on this IMO: Will you be able to buy a FRESH new/unused battery with performance and safety certification at least as good as the original, two years from now (one year after XT1575 production ends)?
Don't overlook the FRESH (chronological age) aspect. Li-Ion batteries start losing capacity the moment they are manufactured, typical estimates are about 70% of fresh capacity or less after 2 years and dropping further over time. Even if battery sits unused in new package on a shelf the whole time.
And don't overlook the performance and safety either. Aftermarket batteries are a dice roll on both counts.
Gotta get em from a reputable company. I've used Anker and have had no problems...
Sporttster said:
Gotta get em from a reputable company. I've used Anker and have had no problems...
Click to expand...
Click to collapse
Anker is a good company in my experience.
But: Can you confirm the date of manufacture of Li-Ion batteries they sell?
I have never been able to get a straight answer on the date of manufacture of aftermarket Li-Ion cellphone batteries from sellers or manufacturers, and even most OEM batteries do not provide this information to the end user (or it is coded in markings on the battery and the end user cannot get the secret decoder ring).
Since Li-Ion batteries have a chronological life limit of about 2-3 years, with capacity dropping below 70% typically by 2 years regardless of service or duty cycles, this is important information. And I believe that the reason you cannot get this freshness information is because replacement Li-Ion cellphone batteries are all stale.
I too have replaced cellphone batteries and "had no problems". But they were stale OEM or aftermarket batteries, and not as good as fresh new OEM. This is a dirty little secret of the aftermarket Li-Ion cellphone battery market.
2 year product life cycle. Rapidly diminishing returns after that. See the product life cycle, be the product life cycle.