Related
I felt this would be necessary since there seems to be varied battery usage. Perhaps we could all post how long our battery lasts, how we use it and most importantly how we CHARGED it as soon as we took it out of the box.
Some people say we have to CONDITION the batteries. While others say CONDITIONING is not necessary with these types of batteries.
Perhaps the results of several users will help us figure out the best methods. Feel free to ask ?s.
search
http://forum.xda-developers.com/showthread.php?t=446131
g2tl said:
search
http://forum.xda-developers.com/showthread.php?t=446131
Click to expand...
Click to collapse
Try reading,
There posts are not detailed. That is how i want to start this thread out. Stop thread crapping.
So i just got my tilt and i am currently charging it, i will post as i use it.
Battery usage is sooo variable I doubt you'll ever get an apples-to-apples comparison.... but for what it's worth, here's my .02.
1) I fully charged my battery as-soon-as I got home from the store with the phone. I have since drained it as-far-as 5% remaining and fully charged it several times. (I realize that this probably doesn't do anything with a lithium battery, but it makes me feel better.)
2) Battery life is hugely dependent upon signal integrity and strength, both of which are marginal at my house. I get 3G most of the time, Edge some of the time, and nothing now and then.
3) In my week of ownership, it seems that both Wifi and GPS are BIG battery hogs. Even avoiding Wifi, my phone was down to 38% by 1:00 pm today with usage as follows - Charged overnight and taken off the charger at 6:45 am. About 25 minutes of browsing while on 3G. Email scans on one account every 5 minutes, but little traffic. A few text messages and about 35 minutes of GPS use with TomTom.
Bottom line, I thing there will be battery issues if you do much more than use the Fuze as a phone.
Hope this helps,
Richard
The sales guy turned the phone on for me and started setting it up right at the store. Walked half a block to my job and started charging the phone. It charged fully, however, I played around with it as it charged.
I use the data connection only when needed.
Here's a typical day:
Charged the phone over night. Woke in the middle of night, around, and unplugged it as it was fully charged. Woke up around 8am. Use the data connection to check e-mails, weather, and browsed for no longer than 10 mins.
By the time I left my house, which was about 8:40am, one line was down.
Used browsing and e-mailing again between 9:30-10:30.
Used AIM for about 15 mins after that.
By 1pm... my battery was half way drained!
That is the typical usage of the phone. Didn't really receive or make phone calls much... perhaps 2 or 3 calls for about 4 mins each.
I tried getting a new battery from the store but they don't have any yet. They had me call up AT&T and they don't have yet. Trying to get one from the manufacturer now.
This is the only thing that I don't like about this phone... the battery life!
I would use the 8125 with Wifi and lasted all day!
What is the difference between NiCad, NiMH and Lithium Ion batteries?
Nicad vs. NiMh
The main difference between the two is that NiMH battery (the newer technology of the two) offers higher energy density than NiCads. In other words, the capacity of a NiMH is approximately twice the capacity of its NiCad counterpart. What this means is for you is increased run-time from the battery with no additional bulk or weight. NiMH also offers another major advantage: NiCad batteries tend to suffer from what is called the "memory effect". NiMH batteries are less prone to develop this problem and thus require less maintenance and conditioning. NiMH batteries are also environmentally friendlier than NiCad batteries since they do not contain heavy metals (which present serious landfill problems). Note: Not all devices can accept both NiCad or NiMH batteries.
Lithium Ion
Lithium-Ion (Li-Ion) has become the new standard for portable power in consumer devices. Li-Ion batterys produce the same energy as NiMH battery but weighs approximately 20%-35% less. This is can make a noticeable difference in devices such as cellular phones, camcorders or notebook computers where the battery makes up a significant portion of the total weight. Another reason Li-Ion batteries have become so popular is that they do not suffer from the "memory effect" at all. They are also environmentally friendly because they don't contain toxic materials such as Cadmium or Mercury.
Just as a rule of thumb (so to speak) I would NOT recommend fully discharging your Lithium battery. If you look at the physics behind it, you can break down the threads that help hold the charge and cause the battery to deterorate more rapidly.
Lithium battery do not need to be fully discharged and based on my experience, if you do that you better buy a few spares. You can plug your phone/battery in to a charging source frequently and often if it's available.
My battery for my Fuze last me all day (6:30am-9:00pm) with heavy surfing and hour+ calls on 3G.
I fully charge and drain my battery (until it tells me to charge) for the first few charges (i'm on my third charge so far, and will continue into the 5th charge). like previously mentioned, it probably doesn't do much for Li battery, but makes me feel better.
So far I've been getting 2 days out of a single charge from the following activities:
- scan for email every 4hrs
- data connection set to turn off after 45 sec of inactivity
- browse on internet for close to an hour a day on 3G
- on phone for about 30min/day.
- music for varying lengths of time
I know I can get 3 days out of a single charge if I wanted to, but I usually drain it on purpose by playing music on speaker on second day.
I am definitely considering getting a spare battery + cradle charger, but I will probably wait until I visit Asia later this year. After all, HTC's home is in Taiwan and apparently accessories are cheaper there.
I tend to leave it on charge over night, then use it during the day (Browsing, comms etc..).
But then I charge it again halfway thru the day in case I run out of battery if I'm out late at night (more comms). Even if half left.
Then the cycle gets repeated..
Buy a spare battery or is this even more detrimental?
You have nothing to worry about as Li-Ion batteries (what the HD uses) do not suffer from the memory effect (which is what you're worried about). Top charging will have no negative affect on the battery. Whatever max battery loss that you might loose overtime is equivalent to if the battery was never used or used 100%-0% every time. Probably after a year or two you may want to get a new battery as the old will no longer hold quite as much charge as it did originally.
Interesting! i do the same thing Panos was worried about that.
not anymore
Paul.
I got my HD just before Christmas. Initially my battery life was very good lasting 2-3 days on one change.
For the past 3 months I put the phone on charge every night.
I've just had to buy a new battery; it now only holds charge for a few hours of continuous use and after an overnight charge only reaches about 80% capacity.
I know the boffins say Lithium Ion has no memory but my battery is trying to evolve and develop a memory
2-3days! u couldnt have been on the wap wap then?
or was u? mine lasts a day, thats going on wap for like 3 hours, calls, text.
Paul.
"but my battery is trying to evolve and develop a memory"
hehe
well maybe your batt was just ½ defect to begin with and then got worse and worse
So to confirm again, even if the HD reaches 50% battery life, i can recharge back to 100% with no problem?
Damn i've always heard it to be the other way round. I always hear about people complaining when they leave their nokia phones on charge overnight only to last less and less.
no matter what you do batteries get worse and worse
½defect poor ones sooner then good ones
thanks guys for response.
I've heard different methods but get confused with lith/li-onetc..
I've heard even with this type its best to run down completely once a while in order for it to "calibrate".
as long as its not too damaging I don't mind charging.
after all what's the point of such a kick-ass screen if I don't take advantage of it.. the whole day!
battery
ofcourse that ture HD battery is not that good as before previously it use to give 1.5 days. every day charge worries me aswell in first few months it use to give battery life equally even if its first 90-100% or 0-10% but now 20% battery is not realiable aswell.
panos123 said:
thanks guys for response.
I've heard different methods but get confused with lith/li-onetc..
I've heard even with this type its best to run down completely once a while in order for it to "calibrate".
Click to expand...
Click to collapse
That's Ni/Cd batteries you're thinking of.
Any lithium battery will hate you for running it down completely; you'll harm it and it won't "calibrate" because of it.
ive done the charging overnight method on pretty much all of my phones and have never noticed any dramatic change?i have been told you need to discharge the battery completely once in a while??
bonesy said:
i have been told you need to discharge the battery completely once in a while??
Click to expand...
Click to collapse
Didn't I answer this in the post before yours?
Don't completely drain a lithium battery.
A unique drawback of the Li-ion battery is that its service life is dependent upon aging (shelf life). From time of manufacturing, regardless of whether it was charged or the number of charge/discharge cycles, the battery will decline slowly and predictably in "capacity". This means an older battery will not last as long as a new battery due solely to its age, unlike other batteries. This is due to an increase in internal resistance, which affects its ability to deliver current, thus the problem is more pronounced in high-current applications than low. This drawback is not widely published. However, as this capacity decreases over time, the time required to charge it also decreases proportionally. Also, high charge levels and elevated temperatures hasten permanent capacity loss for Lithium ion batteries. This heat is caused by the traditional carbon anode, which has been replaced with good results by Lithium titanate. Lithium titanate has been experimentally shown to drastically reduce the degenerative effects associated with charging including expansion and other factors.
At a 100% charge level, a typical Li-ion battery that is full most of the time at 25 °C or 77 °F will irreversibly lose approximately 20% capacity per year. However, a battery in for example a poorly ventilated laptop may be subject to a prolonged exposure to much higher temperatures, which will significantly shorten its life. Different storage temperatures produce different loss results: 6% loss at 0 °C (32 °F), 20% at 25 °C (77 °F), and 35% at 40 °C (104 °F). When stored at 40%–60% charge level, the capacity loss is reduced to 2%, 4%, 15% at 0, 25 and 40 degrees Celsius respectively.
In essence, a battery stored at half capacity will last longer, but ofcourse you want to use it at full capacity. It's an inherent drawback.
Also, Li-ion batteries are not as durable as nickel metal hydride or nickel-cadmium designs, and can be extremely dangerous if mistreated. They may explode if overheated or if charged to an excessively high voltage. Furthermore, they may be irreversibly damaged if discharged below a certain voltage. To reduce these risks, li-ion batteries generally contain a small circuit that shuts down the battery when discharged below a certain threshold (typically 3 V) or charged above a certain limit (typically 4.2 V).
wow dude you are Gordon Freeman
Whoah! Thanks for that.
can you just clarify one more thing though?
I know the battery tells itself to stop charging once full but how about operating the device whilst charging?
It gets very hot so how bad is this in short term? Dangerously bad?
Holy Bear said:
Didn't I answer this in the post before yours?
Don't completely drain a lithium battery.
A unique drawback of the Li-ion battery is that its service life is dependent upon aging (shelf life). From time of manufacturing, regardless of whether it was charged or the number of charge/discharge cycles, the battery will decline slowly and predictably in "capacity". This means an older battery will not last as long as a new battery due solely to its age, unlike other batteries. This is due to an increase in internal resistance, which affects its ability to deliver current, thus the problem is more pronounced in high-current applications than low. This drawback is not widely published. However, as this capacity decreases over time, the time required to charge it also decreases proportionally. Also, high charge levels and elevated temperatures hasten permanent capacity loss for Lithium ion batteries. This heat is caused by the traditional carbon anode, which has been replaced with good results by Lithium titanate. Lithium titanate has been experimentally shown to drastically reduce the degenerative effects associated with charging including expansion and other factors.
At a 100% charge level, a typical Li-ion battery that is full most of the time at 25 °C or 77 °F will irreversibly lose approximately 20% capacity per year. However, a battery in for example a poorly ventilated laptop may be subject to a prolonged exposure to much higher temperatures, which will significantly shorten its life. Different storage temperatures produce different loss results: 6% loss at 0 °C (32 °F), 20% at 25 °C (77 °F), and 35% at 40 °C (104 °F). When stored at 40%–60% charge level, the capacity loss is reduced to 2%, 4%, 15% at 0, 25 and 40 degrees Celsius respectively.
In essence, a battery stored at half capacity will last longer, but ofcourse you want to use it at full capacity. It's an inherent drawback.
Also, Li-ion batteries are not as durable as nickel metal hydride or nickel-cadmium designs, and can be extremely dangerous if mistreated. They may explode if overheated or if charged to an excessively high voltage. Furthermore, they may be irreversibly damaged if discharged below a certain voltage. To reduce these risks, li-ion batteries generally contain a small circuit that shuts down the battery when discharged below a certain threshold (typically 3 V) or charged above a certain limit (typically 4.2 V).
Click to expand...
Click to collapse
Really nice info, thank you for that.
panos123 said:
Whoah! Thanks for that.
can you just clarify one more thing though?
I know the battery tells itself to stop charging once full but how about operating the device whilst charging?
It gets very hot so how bad is this in short term? Dangerously bad?
Click to expand...
Click to collapse
not really, i used to have Xperia, and you have to see how that one gets hot!
really HOT, specially Charging + WiFi or GPS!
but nothing happens.
plus high temps (if i remember correctly) something more than 60c so it's so far from there.
good cos I kinda like it.
Like one of hand warmer things you get from a camping store..
Id like to have another question?
Is it OK if I do this?
Sometimes I put my blackstone on charger. It charges up to eg. 80% but I need to go to lunch (I forgot to mentioon that I am at work). So I pull out the charger take the phone and after hour I return and put the phone back on charger...is this bad?
Thanks.
No, that should do no harm to your battery.
But think about the USB jack. Don't plug it in and out 100 times a day.
My old phone's USB jack lost its stability after the 2 years due to that excessive use.
I have another issue. Don't know if it has been discussed on another thread. The battery indicator on the Touch HD is not lineal at all. Once you're below 50% if drops quickly. 20% and 10% are almost inexistent, I get the alert of low battery a few minutes after seeing the battery at 30%.
I had a HTC TyTN II before and at least the battery indicator was more lineal. In the Touch HD I try to charge before it goes below 50%.
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.
Galaxy S3 Neo has a ridiculous stock 2100 mAh battery which offers a very poor duration. That's the reason I need an extended one. I have tried lots of extended batteries of different brands such as DSK, Anker, and one that I don't know its brand, I bought it from http://www.tucargadorsolar.com/. All of it have offered me a very poor duration. They are supposed to have twice the capacity of stock battery but here are the results that I got with all of them:
Original 2100 mAh battery, 100% charged, holds for 5:30 hours on continuous video playing until it reaches 5%.
Different extended batteries (4200 to 4400 mAh depending on the brand), 100% charged, hold for 6:45 hours on continuous video playing and in exactly the same conditions of the other test (screen brightness, bluetooth, wifi...).
I have repeated the test lots of times and always get the same results. If an extended battery of 4200 - 4400 mAh has a double capacity and original battery holds for 5:30 hours, why the extended one does not hold for the double, 11 hours?
I suppose that I have been testing batteries coming from not reliable brands.
I ordered a battery from Mugen Power 3 months ago, because it is supposed to be a reliable brand. But 3 months later still know nothing about the order I've made, and now they don't answer my e-mails.
What can I do? Is there another brand which is reliable enough to offer me a good duration?
I am really annoyed with this, I have lost very much money and time and all batteries I buy are in a very bad condition.
Well you could just money to buy another phone Anyway, if you're on stock, I can't say much, but using a custom kernel with governors etc, it would be really a great option as with the default battery, it last way more longer.
It's really strange, really. Have you calibrated the batteries right by reading the manuals? Are you sure about the capacities (Have you tested them with a multimeter)? Have in mind (if you haven't already known that) that I9300 batteries are exactly the same, because it's wide known and there are for sure reliable sources. A phone like Neo, is easily targeted with fake things. Last, you should buy from Amazon and read the reviews. Oh, did you try to contact with the companies?
Again, it's very strange....
S3 neo's battery functionality is a joke...
I try a lots of extended batterys baut only one is in right...Anker 7200mah(buy from amazon)
But s3 neo have a "bug"...completly charge of ectended batery is possible just if you replace battery after first charge to "100%" and put on charge again...aproximately after replace cell, phone was display the true charging %...
After 2x 3x replaces battery was true 100% charged...
Discharging is same way....after first 1-2% level replace the batt....it shows aprox. 70% after....
Replace "trick" is only one way to use extended batterys capacity.