yashsingh1/xdaforums huggingface dataset:
[Nexus S Q&A, Help & Troubleshooting] ekerazha:
Ok, my point is clear enough and I'm not a patient teacher.
[Nexus S Q&A, Help & Troubleshooting] :
You typically need to have knowledge of something to be a teacher.
[Nexus S Q&A, Help & Troubleshooting] RogerPodacter:
As been said, all other camera phones are just digital zoom, which is literally the same thing as cropping the image yourself on the computer. Optical zoom is the only one that is real zoom, and we've only seen that on a phone one time, years ago, on the Nokia n93.

So your girl should understand that its not missing anything.

Of course I do realize sometimes you want to send a pic message of something zoomdd in, and you can't crop the pic on the phone beforehand, and obviously no computer around. That's the only time it could really be limitation.

Otherwise, just crop it on the computer.
[Nexus S Q&A, Help & Troubleshooting] B3arfruit:
If a zoom is what she want then a zoom is what she wants. MT4G my wife has it and its not a bad phone.
[Nexus S Q&A, Help & Troubleshooting] Smilez_c:
Well said I'll make sure I show her this
[Nexus S Q&A, Help & Troubleshooting] ekerazha:
Seemingly, digital zoom isn't always about resizing:

http://conversations.nokia.com/2010/07/12/nokia-n8-photography-all-the-faqs/#zoomlimit

On the Nokia N8 there's a trade-off between zoom and resolution, so with resolutions lower than the max sensor resolution, it uses the available sensor area to increase details while zooming, so no upscaling for 720p recordings until about 3x zooming. Nokia N8 camera and camera support is really good.
[Nexus S Q&A, Help & Troubleshooting] nxt:
So are there any camera apps that can "zoom"? (I put it in quotes ok, so no need to reply about cropping/downsizing/upsizing/supersizeme/happymeal).

360 Camera, FX Camera, both don't.
[Nexus S Q&A, Help & Troubleshooting] theimpaler747:
Not 100% sure if it does, have you tried vignette?
[Nexus S Q&A, Help & Troubleshooting] ll_l_x_l_ll:
with all respect, i think if your "gal" returning the phone because the cam doesnt have digital zoom, then she is not smart enough because she shouldnt have bought the phone i the first place.

anyone who is intresting in a camera in his phone should at least look for a phone with an actuall button to press when taking a shot. plus there are already higher and much better cams on other phones out there to even think of nexus S.

someone lock this please. its really very stupid.

" no zoom.. fone sux"

smh
[Nexus S Q&A, Help & Troubleshooting] ryan562:
Vignette indeed has a zoom
[Nexus S Q&A, Help & Troubleshooting] Rusty!:
Tell that to Sharp
[Galaxy Tab General] ianandamy:
I have a small gap on th bUtton side of my screen i can see the hardware for the sim reader and sd slot anyone else or do i need to exchange it.

Also i have root and all the fixings anyway to speed up the laggy ass browser.oclf is installed and revamped to other tables too.
[Galaxy Tab General] brilldoctor:
no i dont have a gap
[Touch Pro2, Tilt 2 Windows Mobile General] arizona_hillbilly:
i installed spb shell and vostradomus msm.

somewhere along the way,all my ringtones were erased.

can someone help me out with a pack of ringtones? i really only used the old phone ringtone. but used a cpl of the stock ones also.

thanks
[Epic 4G General] leatherneck6017:
Interesting post. Thanks!

Sent from my Emotionlessly Bonsai'd Epic 4g.
[Epic 4G General] emalia:
One question in regards to your post. I currently use the desk top cradle to plug in when I get home, will this mess with the battery too? It was made by Samsung I am confused as to why they would make something to use with your epic if it will hurt the battery.
[Epic 4G General] gwcarpenter:
Don't quite know if you're trying to "one-up" me on battery life, but this post is not misinformation, I am trying to explain in layman's terms on how a battery communicates with the phone. I don't need to cite my academic pedigree and be all "scientific" about saving battery life.

The point of this thread is an answer to all the threats I've seen on improving battery life and the countless posts I've seen on fully discharging a Lithium Ion Battery to "calibrate it"

The point I don't quite understand about your reply to this thread is that it just restates what I already pointed out only it's longer. Maybe if you have more words than me it makes you smarter...

but I stand corrected, I did mean a wipe of battery stats after a Rom Change and Only after a full power off charge, not intermittently.

but...

"one of the few things my post was accurate on" - Hmm, if it's an inaccurate post to you, just report it. - I assure you these are not claims and theories but pure fact.

I'm not here to get into a pissing contest about battery life, I'm just posting here to help people...
[Epic 4G General] gwcarpenter:
I would advise that as long as you are charging your Epic in the cradle while it is not powered on, then you'll be perfectly fine. Charging it while it is powered on will cause unnecessary heat.
[Epic 4G General] gwcarpenter:
And I finally accumulated enough posts to cite my sources:

http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries

I have to say that Laptop batteries are a lot different than cellphone batteries, the "do a full discharge after a few weeks" works great for a laptop battery but I would not do this with a cell phone battery. They just aren't the same internally. Laptop batteries are a bit more sophisticated.
[Epic 4G General] chronostorm:
actually, lithium ion batteries are best kept at about 50%, not 100
[Epic 4G General] akijikan:
This thread is simply a point of ignorance about what is being described when people talk about "calibrating a battery" on an android phone. The process is not actually about calibrating the battery. It actually calibrates how the software reads battery information. You do see better battery life after going through it, but nothing has changed about the battery.

If you've ever flashed a ROM and suddenly found the battery to significantly higher or lower percentage displayed in the software meter, or if you found the battery seems to drain more quickly than previous(it doesn't, the phone just shows higher than actual charge to start), those are symptoms of poorly or not-at-all calibrated situations. The "battery calibration" process is a fix for that.

And OP, I'd say your understanding is rudimentary at best. While its true that Li-ion batteries don't "have a memory" (no batteries "have a memory", the memory effect was a result of the chemical process used by some batteries), li-ion batteries do show better usable lifetimes when charged according to certain standards. Again, its a matter of how the chemical process works and what wear the battery's internals develop depending on it is used.
[Epic 4G General] gwcarpenter:
Once again, I'm not in here to get into a specifics and scientific pissing contest on how batteries work, I just put a guide on how to improve your battery longevity.

Not everyone in here is an electro-chemical engineer with a concentration in battery physics. Or whatever. So, stop ripping apart my post with your blabbering physics. Just because I have a low amount of posts makes me inferior to you?
[Epic 4G General] akijikan:
I'm sorry you sensed hostility in my post. But don't ignore what I'm saying about battery calibration.
[Epic 4G General] codest3r:
I think Aki is right, we aren't calibrating our battery, we are resetting battery stats the software keeps. The reason we recommend this is b/c when folks change ROM's some can get miserable battery life in practice until they reset the stats. An experienced dev can tell you why, but it is a common enough fact to warrant wiping battery stats when switching ROM's.

Sent from my Epic 4G on XDA App
[Epic 4G General] gwcarpenter:
It was a bit hostile... I enjoy a good debate and rational thought though, I understand what you're saying, I'm not trying to get into the specifics, but it seems a lot of users are doing this "process" too much, and personally I don't think you should do it at all. I think you should do a full recharge (powered off, not discharge) then wipe battery stats. Period. No need for a discharge to 0.
[Epic 4G General] tatoniss:
People, this guy is just trying to help. There is no need to be rude. We are all on this form trying help each other. This whole idea is hurt when someone posts something and gets attacked. There is no need to call someone ignorant if you don't agree
[Epic 4G General] gwcarpenter:
Personally, I've gotten the best battery life when I do what I just posted above. Which is a powered off charge to 100% then a battery stats wipe. Viola, no need to discharge all the way to 0 and back to 100. It just tears up your battery in my experience.
[Epic 4G General] gwcarpenter:
I appreciate the support. If you think I'm dead wrong let me know. But the intent is far more important that the means of which I describe how the battery communicates with the phone.

I just want Epic Users to get the best out of their Epic.
[Epic 4G General] jirafabo:
I think a lot of people think they are calibrating their battery, but in all actuallity it's the information in the phone about the battery that needs to be callibrated.
[Epic 4G General] plapczyn:
You have to understand that the battery percentage is calculated by the phone. If the phone has no way of knowing the actual battery percentage accept with an indication that the battery is full or an indication that the battery is dead, then logic serves that one would have to perform a complete cycle to get accurate statistics. Let's say you have an electric car that's 'fuel' gauge is based solely on an indicator from the battery when it is full and when it is empty. It was initially calibrated to go ~300 miles on a full charge. Now say you get a new engine that might use energy at a different rate than the previous engine (analogous to say a kernel update). You don't really know the percentage of the battery until you record how many miles you've driven before the battery becomes empty. For the statistics to be accurate you must record the statistics over the entire battery discharge cycle. If the only indicator the software has is full and empty, the only thing you can gather from the statistics without a full cycle is the amount of energy that wasn't a full cycle.

Another analogy would be being blindfolded and sipping water through a straw. If you are told that it is full when you start and you drink 25% of it and then we fill it up again. Now you drink the same amount, how much is left (keeping in mind you are still blindfolded.) You have no idea, because you haven't done a whole cycle. You have no idea if you just drank 25% or 50% or 75% because you have never finished it.

My point is, is that you can't record the full capacity of batteries without doing a full charge, discharge cycle.
[Epic 4G General] 1greek4u:
Above are some things you said, and below I'm going to copy and paste some stuff from the article.

Although lithium-ion is memory-free in terms of performance deterioration, batteries with fuel gauges exhibit what engineers refer to as "digital memory". Here is the reason: Short discharges with subsequent recharges do not provide the periodic calibration needed to synchronize the fuel gauge with the battery's state-of-charge. A deliberate full discharge and recharge every 30 charges corrects this problem. Letting the battery run down to the cut-off point in the equipment will do this. If ignored, the fuel gauge will become increasingly less accurate.

The worst condition is keeping a FULLY CHARGED battery at elevated temperatures

If possible, store the battery in a cool place at about a 40% state-of-charge.

Avoid keeping the battery at full charge and high temperature.

While the battery is kept fully charged, the inside temperature during operation rises to 45°C (113°F).

Batteries with fuel gauge (laptops) should be calibrated by applying a deliberate full discharge once every 30 charges. Running the pack down in the equipment does this. If ignored, the fuel gauge will become increasingly less accurate and in some cases cut off the device prematurely.
[Epic 4G General] mattallica76:
That is correct. Discharging to 0% does nothing. The most important thing is getting the battery as full as possible, and then reset the fuel gauge(wipe battery stats.) Personally, I use the external Samsung spare battery charger to charge the battery to full, then insert it in the phone, and boot into recovery and wipe batterystats.

What many don't understand is that wiping batterystats in CWM deletes the batterstats.bin file in data/system. So when you do a data wipe, you are wiping batterystats also. This is why it is important to have a full battery when flashing a new ROM. Something else to remember is that restoring data from a Nandroid backup will also restore an old batterystats.bin file, which is fine if the new ROM has a kernal that is the same or similar to the previous one, but it will negate any batterystats wipe you did before restoring data.
[Epic 4G General] milesukaoma2010:
Agreed
[Epic 4G General] edonnelly:
I think we need a separate Battery Calibration forum to organize all these threads into.
[Epic 4G General] mattallica76:
I think the number of Battery Calibration threads just goes to show how much confusion, ignorance, and misinformation there is on the subject.

Bottom line is that battery calibration can be avoided if everyone just makes sure they have a full battery when flashing anything that wipes data. Also make sure to have a full battery when flashing with odin. Other than that, unless you are flashing a kernel that has power management characteristics significantly different than the previous one, there should be no need to re-calibrate the battery stats.
[Epic 4G General] ddpacino:
Just in case anyone needs more information:

http://batteryuniversity.com/
[Epic 4G General] HeisRisen:
This is 100% true ... it is even mentioned in the source the OP cited.
[Epic 4G General] gwcarpenter:
So where am I wrong? I stated not to expose it to extra heat, unplug it when it reaches 100%

Take note this is not an article specifically for Cell Phones. Once again people nit-picking the article and my post expecting to prove something?

You're missing the point...
[Epic 4G General] gwcarpenter:
It seems like there are two schools of thought on this in the discussion:

Battery life is improved by discharging

Battery life is improved by not discharging (I am from this school)

I am glad I posted this topic, some great arguments here.

Question for the dischargers: Explain why I would need to fully discharge to 0% then Recharge to 100% after a kernal update or Rom Change? Wouldn't my battery life be better if I kept it around 50% and then fully charged it, wiped the battery stats, then installed the kernal or ROM for it to populate with new battery data? I'm not getting why the Android OS needs to calculate all the way to 0% battery usage stats.
[Epic 4G General] MaxPatlick:
bah, why do I have to unplug it at 100%? why can't it just stop charging..
[Epic 4G General] schnowdapowda:
Yeah I've always heard that completely discharging li-ion batteries was a mistake.. but I'm not an electro-chemical engineer or whatever. I'm also not getting the drinking water analogy..if were completely wiping battery stats how can it (android) know anything about the charge cycle you put it through before you wipe? Wouldn't it just know that its at its new full capacity and to count down from 100 till the battery tells the system its dead?
[Epic 4G General] Top Nurse:
Forget all the stuff not related to lithium batteries as it doesn't apply to Epic 4G phones.

Don't drain your battery to nothing as strange things are known to happen.

Feel free to charge your battery any time you want to.

IF you change roms then feel free to use a less than full battery.

After flashing your rom, power off and R&R the battery with a fully charged one.

Immediately go into clockwork and wipe the battery stats.

Enjoy life, drink your favorite beverage, and give yourself a big hand for being so cool...
[Epic 4G General] flawlessbmxr:
FINALLY SOMEONE ELSE IS WITH ME ON THIS. I have said this countless times and people still don't listen. Thank you George, you are my bff now.
[Epic 4G General] HeisRisen:
It's been explained in this thread. A cycle is a cycle. Whether drained to 50% twice or drained to 0% once. We do not claim that discharge improves battery health, we are claiming it is necessary to PROPERLY sync up device and battery. What we do claim is that it is total and complete nonsense that a battery discharged once a month is a less healthy battery thank one that never sees a complete discharge. By your logic if you never did a complete discharge your battery would last forever, that is ridiculous. Just because an LI battery's life is measured by cycles does not mean that you can increase the duration of the chemical processes by not going through a cycle. Battery use is batttery use, it's a chemical process. Plap explained the reasoning very well, if you can't get it from that, I don't know that you ever will.
[Epic 4G General] Poryhack:
Always amazes me how much people who claim to know what they're talking about on the internet can disagree.

In this corner, one expert says one thing, in the other corner another says the exact opposite...
[Epic 4G General] nicholishen:
I've wasted so much time trying to figure out this battery situation that if I had spent that time truly being productive, I could have used that extra income to purchase all the extra batteries I could ruin with... blah blah blah. Thanks for the clarification. My search is over. :)

http://www.amazon.com/Battery-Charg...AV56/ref=sr_1_1?ie=UTF8&qid=1293518433&sr=8-1
[Epic 4G General] gwcarpenter:
I am getting better battery life when I do it my way. No more 20% drops in 3 minutes of use. I've experimented with several ROMs. DI18s and mostly DK28s. Righ now I'm using a basic rooted DK28, mostly stock.

I have a standard Samsung battery and from 5am to 9pm, medium use of web, calling, texting and I'm at 25%. I power off and charge it to 100% turn it back on do a few things on it before I go to bed. And repeat.

I've worked with a lot of Linux kernals and in my experience with laptops, PDAs and cellphones that run a variant of linux with a lithium ion battery, that the "caibration" process is unneeded. Linux is smart enough to accurately manage and measure a theoretical "fuel gauge" for interpreting battery life to the user, so long as that user starts with a fully charged battery.

http://www.linuxjournal.com/article/6699

That's my side of the story, if you don't like it, break my argument. Until then I'll thoroughly enjoy my battery life, and not have to worry about destroying my battery.
[Epic 4G General] squshy 7:
How could you know you're getting better battery life your way when you never let it die? :p I think you just have a phobia of dead batteries. Mr engineer who doesn't want to get too "sciency" (tho I've never known an engineer who didn't want to get his science on)

:p :p :p.

this all in jest carpenter. I think you make valid points. But I also believe your hung up on protecting the battery when all we're concerned about is androids accurate relationship with miss li-ion. And to that point, the car analogy is a very good example. I don't think you can argue its not an effective way to calibrate how android reads the battery.

EDIT: oh and I don't know about other linux kernels, but android might not be that good on its reading, hence the batt stats. Plus, and I think this is important.

"So long as that user starts with a fully charged battery"

However, when flashing a new rom or kernel, even if you do it with a full batt, doesn't the phone prevent the batt from hitting a true 100%, as a safety buffer? So logically, even then the batt stats wouldn't be accurate, and you would still need a way of calibrating android.

Sent from my baked and emotionless SPH-D700
[Epic 4G General] HeisRisen:
You're an engineer? Wow. Also, when you say "worked" with several kernels are you insinuating you are a programmer? Linux kernels have no way of understanding the 0 state of an LI battery without the battery stating so, ANY programmer understands this and that is why 99% of the chefs on here recommend a complete discharge after a kernel change. Including plap who IS a coder and has compiled one of the best ROM's on here currently.
[Epic 4G General] DiGi760:
Can we please have this discussion without the jabs at each other? This is the problem with this forum. We look like a bunch of kids squabbling and getting nothing done. It would do this forum wonders if everyone took a few minutes to calm down and discuss these topics like mature adults.
[Epic 4G General] gwcarpenter:
I think everyone would rather get into a giant horse and pony pissing contest, throwing around their pedigrees and street cred. like it means anything.

The lithium ion battery was developed to do away with the need for discharging. This "calibration process" is absolutely pointless regarding this phone.
[Epic 4G General] xjman:
I would also like to point out that lithum batteries do no build a memory such as nicd batteries do. So it causes no harm to the battery to charge at any point.

True however is the OP's info.
[Epic 4G General] chaosfenix:
For someone who wanted to simply provide your info for the benefit of the community, you sure do get defensive and snarky whenever anyone disagrees with you.

And again, as has been stated many times in this thread:

Lithium Ion batteries do not need to be discharged as they have no memory! That is not what is being disagreed with (as clearly we all agree this to be the case!)

However, just because Li-Ion batteries have no need for discharging because the battery does not develop a memory does not mean they instantly impart knowledge about their every facet to whatever device you plug it in to.

If you would actually read posts that provide a different viewpoint (ie mine) instead of skimming over them when you see they provide an alternate view, you would realize that those with dissenting opinions have all been talking about the phone needing to be calibrated to the battery.

Not the physical battery needing calibration.

Not the physical battery needing calibration.

Not the physical battery needing calibration.

Just the phone, the device, the electronic memory in the circuitry getting the data it needs to accurately represent the batteries remaining charge on that little icon in the notification bar.

So yes you are correct, the battery does not need to be discharged for it to work properly. If you want your phone to be more accurate in its charge remaining estimation however, it needs the full and empty data points.
[Epic 4G General] Whosdaman:
Ok the flamming in this thread will also come to an end. The next post that is remotely flamming or trolling someone will be infracted/banned.
[Epic 4G General] gwcarpenter:
I get defensive and "snarky" when I am personally attacked on an open development forum. A simple hey OP or gwcarpenter, I don't agree with that because (insert idea). Not "your post is ignorant and wrought with misinformation" or "ANY programmer knows blah blah blah" or "I have more credibility than you because of X" Instead of providing a reply that actually helped the people who use this website.

I do not agree with the empty data point. Some of my posts refer to that, I guess the defensive ones. I find that as long as you start on a full fresh charge with clean battery stats , it should not matter.
[Epic 4G General] HeisRisen:
Can you give me a reasoning for how you "Find" that?

If a phone only knows where the 100% mark and the only other milestone in which the device communicates is 0% how does your phone know where 90% REALLY is? Just curious.