Possible battery fix! - EVO 4G General

Hey everyone, this is my first topic and I guess I had sort of a discovery that could help people out. Well a couple days ago I saw/learned on a thread that once our batteries reach 100% when charging..it shuts off. Now this is reasonable since almost everyone with an EVO experiences that 10-15% drop when taking it off the charger...well to get to the business, try doing this method I gave a shot.
1. charge your phone until the led light goes green
2. unplug it and let it drop to 97% (that's all I've tested it on, and use that all the time since I got good results with it.)
3. Plug the charger back in and let it charge to 99%, then take it out, and.your good to go.
I encourage everyone to give this a try and let me know what kind of results you get. I definitely see a change when, and when not using this method.

If you watch your phone and pull it off the charger when the light turns green then guess what....you're at 100%. It only drops 10% if you let it stay on green for a long time (because it actually stops charging until the voltage drops back down a bit).

Forgot to mention, its useful if its left charged over night. Good catch.

Welcome to the Forums.
This is has discussed ad nauseum

Bielinsk said:
Welcome to the Forums.
This is has discussed ad nauseum
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ditto.
10char

Related

Battery problem, try this.

Preparing...
With the phone in the on position.
Fully charge the battery with the phone on... (until the led turns green.)
Once the led turns green, unplug the charger until the led goes off.
After the led goes off, plug the charger back in. When the led turns green , power off the phone.
now.... with the phone fully powered off...
1. Unplug the charger.
2. Wait until led goes off.
3. Plug charger back in until the led turns green. When it turns green, unplug the charger again and go to step 1.
4. repeat steps 1 and 3, 10 times. This may take anywhere from 30 seconds to 30 mins per cycle. Typically only about 1 minute. though.
DO NOT DRAIN THE BATTERY. The goal is not to empty the battery and recharge like ni-cads (those have memory, these don't). These are lithiums, so we need to do the opposite...
And lets all sing the hokie pokie and shout
The cells were not charged evenly, so each cell holds different charges. So when you charge it, 1 cell may be 95% another 100 and 98 etc... so when you balance the cells, they function like they are suppose to.
this phone does not have a cell balancer built into it.
So charge, wait til its almost dead, charge again til full, then do the process w the phone off?
-------------------------------------
Sent via the XDA Tapatalk App
I'm sorry this guide doesn't really make much sense. the led won't be on if the phone is unplugged so how will I know if its on Orange or not? also is the phone on or off when I'm doing this?
Sent from my PC36100 using the XDA mobile application powered by Tapatalk
changed the instructions on top, i suck at writing.
I suppose this might explain why sometimes my phone plunges to about 90% almost immediately after taking it off the charger, but then battery decreases at a "normal" rate after that?
So were reconditioning our batteries...
I'm 99.9% sure the battery is single cell...it wouldn't make sense to have a dual cell 3.7v LiPo unless you wanted heavy discharge.
I don't see how this will make any charge other than the phone not topping the battery off...which in that case an external charger would do a much better job is so.
I tried this and my battery has been holding steady at 100% with the screen off for the last five minutes so something worked.
So is this a one time thing to re-condition the battery or will we have to do this more then once
Woah, voodoo magic here. Any proof of this working.....
SteelH said:
Woah, voodoo magic here. Any proof of this working.....
Click to expand...
Click to collapse
No proof yet. Take it or leave it.
It works for me. Test on your own. Seems pretty harmless to atleast try...
Ingesting.
I've heard of draining all the way and recharging a couple times but this is a new one lol..
tmidle8575 said:
I suppose this might explain why sometimes my phone plunges to about 90% almost immediately after taking it off the charger, but then battery decreases at a "normal" rate after that?
Click to expand...
Click to collapse
this always happens to me since getting the phone. will give this harmless voodoo a try
kthejoker20 said:
No proof yet. Take it or leave it.
It works for me. Test on your own. Seems pretty harmless to atleast try...
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Click to collapse
That's true, won't hurt anything. WTF I'll give it a try, maybe get proven wrong and learn something too..
I gave this a try and I must say that it is working. Before I did this, as soon as I would take my phone off the charger it would immediately drop to 96%. Now as david279 said, it will actually stay on 100% for awhile and have better standby time. Good find joker, I do see a difference.
How did you find out about the cells not being charged evenly?
WOW...this actually works. This should be posted on other forums so ppl know about it.
Akulamenuri said:
How did you find out about the cells not being charged evenly?
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I'm a battery nut... actually, i used lithiums in model RC airplanes all the time. Balancing is a must.
Maybe someone can build an app for this, to reboot cycle on and off the power?
Is that even possible?
Now if someone would like to shoot me a awsome working froyo 2.2 rom *** joke
kthejoker20 said:
I'm a battery nut... actually, i used lithiums in model RC airplanes all the time. Balancing is a must.
Maybe someone can build an app for this, to reboot cycle on and off the power?
Is that even possible?
Now if someone would like to shoot me a awsome working froyo 2.2 rom *** joke
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Click to collapse
can you post this over at the other android forums so ppl know?

Reviews

At last. Great review from Cnet:
http://reviews.cnet.com/smartphones/samsung-vibrant-t-mobile/4505-6452_7-34129373.html?tag=rvwBody
I bet they didn't train the battery since they said it dies fast
What do you mean by "train" the battery?
Tyrant171 said:
What do you mean by "train" the battery?
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Letting it die all the way then turn it on till it completely turns off and you can turn on again then charge it fully and you do it that for 3 times and your good
Gotcha...good to know. Thanks for the info!
iceshinobi said:
Letting it die all the way then turn it on till it completely turns off and you can turn on again then charge it fully and you do it that for 3 times and your good
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Click to collapse
so you turn on the phone for the very first time and use it on whatever battery power thats left. then use it to the point which it shuts down itself. now turn the phone back on again, and plug in the charger, keep using the phone but with the charger still plugged in. when the battery meter indicates "FULL". unplug the charger. and repeat these procedures 3 times.
Does this sound about right?
Ziostilon said:
so you turn on the phone for the very first time and use it on whatever battery power thats left. then use it to the point which it shuts down itself. now turn the phone back on again, and plug in the charger, keep using the phone but with the charger still plugged in. when the battery meter indicates "FULL". unplug the charger. and repeat these procedures 3 times.
Does this sound about right?
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Click to collapse
Yep but u repeat 2 times since u already started with the 1st one and then your battery will be maximized for some reason i still don't understand clearly
Li-ion batteries have a few quirks. They need a few full charge cycles to get the full range of the battery. Then for the best lifespan you should top off the battery every day. Every 30 or so top-offs (once per month) you should drain the battery completely then recharge. Depending on the quality you should get 3 years or 200-500 cycles. The batteries continue to slowly improve.
I don't see what the big deal is about the camera not having a flash. I have the HD2 right now and almost never use the flash and if I do half the time I retake the picture without the flash and it comes out better.
speoples20 said:
I don't see what the big deal is about the camera not having a flash. I have the HD2 right now and almost never use the flash and if I do half the time I retake the picture without the flash and it comes out better.
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Agreed. I don't think I've ever taken a photo with a cell phone flash that I was happy with.
I immediately thought the same thing (re: training the battery) when I saw this review. lol. You'd think that cnet would know these things, wouldn't they?!
Also clearly they didn't try to use the night mode vs a camera with a flash before whining that it has no flash.
Yea I hope more reviews come in the next 13 hours or atleast I go in my car to drive to T-Mobile tomorrow morning
Mobile Burn has a good video review here
youtube.com/watch?v=PFOwe_Jj3pI
Heres another one from Mobility Minded
youtube.com/watch?v=aXYLOI5i7Gw
speoples20 said:
I don't see what the big deal is about the camera not having a flash. I have the HD2 right now and almost never use the flash and if I do half the time I retake the picture without the flash and it comes out better.
Click to expand...
Click to collapse
It's a big deal for people like me that are out and about in the evening or even in rooms with not very many windows, in those cases it makes the camera almost useless because all you get is a blurry mess or a black screen
When you turn on Night Mode, the camera quality is actually really good in dark situations.

Charge for first use?

Hi.
I've seen lots of advice in several different ways about charging new tech when you get it.
So I thought I'd try a poll to see what the general consensus is.
1) Charge until light is green before turning it on the first time?
2) Turn on without precharge, but then run completely flat before charging
3) It's a Li-ion battery and it makes no difference
Thanks
SnakeManJayd said:
Hi.
I've seen lots of advice in several different ways about charging new tech when you get it.
So I thought I'd try a poll to see what the general consensus is.
1) Charge until light is green before turning it on the first time?
2) Turn on without precharge, but then run completely flat before charging
3) It's a Li-ion battery and it makes no difference
Thanks
Click to expand...
Click to collapse
Many people will tell you it doesnt matter but I know from experience that it does in fact make a difference. When I got my phone (mt4g) I starte using it right away without charging it, everything seemed fine I had an issue with the screen so I exchanged it and got a new one. This one I charged first for a few hours before even turning it on and it did make a difference. my battery seemed to be holding a charge for longer. When I got another battery I read they recommend charging it fully off for at least 8 hours then when you do power it on let it run down all the way. Do that for the first 5 charges and it will help your battery health in the long run.
Another example is my friend got two of the same phone one for him and one for his gf. He started using his as soon as he got out of the store, hers he charged for her because he didnt see her that night. He said the phones are pretty much set up identically, same software, same services running etc.. and he said her battery lasts noticeably longer than his
graffixnyc said:
Many people will tell you it doesnt matter but I know from experience that it does in fact make a difference.
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Thanks for the input. Ya, I have heard a lot of stories like yours.
And even if it doesn't always make a difference, it's only 8 hours, so it should be worth it just to make sure, but when you've been waiting since January for an android tablet and you finally get one in April, 8 hours is forever. ha ha
Thanks
Oh, I suppose another related question is how much is fully charged? Apparently modern devices have a current regulator or something in them that stops it from charging past 95% or something? Not sure on specifics, but from what I've read. You can't charge it passed when the green light comes on anyway?
Anyone know more on this?
SnakeManJayd said:
Oh, I suppose another related question is how much is fully charged? Apparently modern devices have a current regulator or something in them that stops it from charging past 95% or something? Not sure on specifics, but from what I've read. You can't charge it passed when the green light comes on anyway?
Anyone know more on this?
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Click to collapse
Many new batteries will charge to 90% or 95%, then display the light as "fully charged". They will continue to to charge to 100%, drain back down to 90%, and back and forth in order to not stick at full 100% (aka charging over night).
That being said I've heard a lot of talk about conditioning smartphone batteries etc. and for the most part I haven't seen a lot of evidence to prove that it is necessary. Lithium Ion batteries really don't need conditioning or anything as much as you'd think... that's really an old NiCad thing to do.
I did not charge mine when i first got it, the battery was already at 90% about and i simply used it for a day and a half and now i'm charging it for the first time. i regularly get new electronics devices and i never have better problems personally. battery tech has come up a ways in the last few years.
It's well known by now the Li-ion batteries do better with short, more frequent charges. It is not a good idea to run it down until dead. These batteries also do not have a "memory."
Placebo and old habits keep this myth around.
Sent from my Xoom
I got my Xoom wifi and plugged it in and turned it on. Couldn't wait any longer.
It's an awesome tablet and the battery lasts all day, with constant wifi and playing.
Thanks for the advice guys
MikeyMike01 said:
Placebo and old habits keep this myth around.
Sent from my Xoom
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Click to collapse
Well said. Alas, no matter what a sound scientific methods proves some people just won't listen...
I used it right out of the box and have no issued
Thanks for posting this - timely reminder to check up on the latest info on li-ion batteries (given I will be getting my xoom tomorrow).
Here is a summary on lithium ion:
http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
Appreciate if anyone finds other links that explain it even better but are also as reliable.
I thought of this thread. It's for N1 but if you have some spare time, tons of information in that thread...
http://forum.xda-developers.com/showthread.php?t=765609&highlight=battery+calibration

Training the battery?

Hi, I just got my phone today and the sales man was saying something about training the battery but I was joning on the phone so much I didn't actually hear him. So I think it's you completely drain it until it shuts down and then, do you charge it as it's off or can I turn it on and charge it? How many times do I repeat this? Is this all I need to do. Thanks people!
H2O37 said:
Hi, I just got my phone today and the sales man was saying something about training the battery but I was joning on the phone so much I didn't actually hear him. So I think it's you completely drain it until it shuts down and then, do you charge it as it's off or can I turn it on and charge it? How many times do I repeat this? Is this all I need to do. Thanks people!
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Why did you post this topic in multiple forms ? This has been answered in other forum
I am sure this is for galaxy s3
Sent from my GT-I5800 using xda app-developers app
I bought a new Battery some time ago the selling guy explained how to do it BEST:
It's all about the first 3 loads which are essential for the whole life of the battery!
load it until it's full in switched off state (only the first time) and wait until there's shown "100%" in the big Battery picture when you push home button (still in switched off state). Then it's at 4200mV
IMPORTANT: do not unpluguntil it's really full!!! (That's the most important, as the ions only are "pushed" straight in the "right direction" if you don't interrupt charging.)
boot the phone and let it drain to zero without plugging charger (or USB-cable)! Means until pone shuts down itself. Plug the charger then and boot the phone or not - doesn't matter
First 3 rounds from 4200 to 0 "mV" without any charging. Means until pone shuts down itself.
after three loads keep the accumulator between ~40 and ~90 % of load. That' best for a long life.
generally it doesn't matter if phone is on/off for charging and it does not matter how often you plug the charger. Of course I wouldn't do that every five minutes....
Sorry for my bad technical English...

How to get a full battery charge and improved life

For those who have bad battery life first charge your phone fully while on then turn phone off...plug the phone back into charger while it's off it will be a red light charge until green sometimes it takes another 20 mins .When done turn phone on and plug charger in again it will drop to 99% when 100 plug out now u have a fully calibrated battery..I am on the new firmware btw
HTC ONE rooted,S-Off,SuperCid
HTC ONE rooted,S-Off,SuperCid
What do you basr yourself on for this??
Sent from my GT-N8013 using xda app-developers app
gemini002 said:
For those who have bad battery life first charge your phone fully while on then turn phone off...plug the phone back into charger while it's off it will be a red light charge until green sometimes it takes another 20 mins .When done turn phone on and plug charger in again it will drop to 99% when 100 plug out now u have a fully calibrated battery..I am on the new firmware btw
HTC ONE rooted,S-Off,SuperCid
HTC ONE rooted,S-Off,SuperCid
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i call BS lol this has been around since the htc hero days
CheesyNutz said:
i call BS lol this has been around since the htc hero days
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Actually it's not b.s I noticed that around 80% my phone would drop down quickly to 70% and 30% would drop 3% instead of 1 so I did this method knowing that my battery was not fully charged.since I have done this no more quick drops...instead of saying b.s why not try it first then come to a conclusion smh
HTC ONE rooted,S-Off,SuperCid
I can vouch for this ...I am only trying to help those who gave bad battery drain...we do flash a lot on xda sometimes **** happens
HTC ONE rooted,S-Off,SuperCid
Instead of clowing u guys should try it..listen phone says fully charged for some but in reality it is not it will rapidly drop for example 90% but drops to 79% rapidly or drops 3% for no reason while screen is on is due to battery not fully calibrated/charged ..This happens from flashing roms sometimes this happens if you have battery issues try this method ..
HTC ONE rooted,S-Off,SuperCid
I used this method a couple of years ago on my DHD. It made a huge difference! i forgot all about this. I'll do it again later.
Thanks, I had a feeling the calibration was a little off since the phone shuts down at around 5%, let's see what happens.
Yeah, I do this on my galaxy note and sometinmes on my new one.
When 100,% through normal charging turn phone off and begin charge again. It will charge just that bit further.
One thing the note does better is thaat when off and charging you get a battery indicator on screen, not so with the one.
WhatsAUsername said:
I'm pretty sure the only way to get a full battery charge is to hold the phone upside down in your right hand, put your left hand on the back, and spin in 3 circles, counter clockwise. You must then quickly plug the charger (within 1 second), and spin the phone around the cable 3 times, in a clockwise direction this time. Only then can you ever hope to have a fully charged battery.
I can vouch for this. :good:
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Man that's total bull...... only 2 circles required
To be real for a minute if I may..... if you monitor the current draw by the phone when charging you will see that when the green led lights the phone is still pulling 60-70mA from the charger so it's still charging and can take a while longer for that draw to fall to 0mA. At this point it's fully charged.
Charging it as the OP suggests does actually allow this extra top up.
I actually think this does help with proper calibration a bit. Not sure why people are acting like children here.
Sent from my HTC One using Tapatalk 2
The topic of batteries makes people go crazy for some reason. I will toss in my own 2 cents, the thread title talks about improving battery "life". In this case we seem to be talking about "battery life per charge cycle" and people should just be aware seeking improvement in this area usually comes at the expense of a different kind of battery life, ie "battery life per phone".
I personally am one of those who is a little irritated by the non-replaceable battery on the One because I intend to keep the phone for many years. This applies to almost nobody else I realize, but for me this thread is a helpful summary of the exact steps I need to *avoid* if I want to get the longest lifetime (measured in years, not minutes) out of the battery.
NxNW said:
The topic of batteries makes people go crazy for some reason. I will toss in my own 2 cents, the thread title talks about improving battery "life". In this case we seem to be talking about "battery life per charge cycle" and people should just be aware seeking improvement in this area usually comes at the expense of a different kind of battery life, ie "battery life per phone".
I personally am one of those who is a little irritated by the non-replaceable battery on the One because I intend to keep the phone for many years. This applies to almost nobody else I realize, but for me this thread is a helpful summary of the exact steps I need to *avoid* if I want to get the longest lifetime (measured in years, not minutes) out of the battery.
Click to expand...
Click to collapse
What's wrong with turning the phone off every once in a while and letting it charge up fully?
NxNW said:
The topic of batteries makes people go crazy for some reason. I will toss in my own 2 cents, the thread title talks about improving battery "life". In this case we seem to be talking about "battery life per charge cycle" and people should just be aware seeking improvement in this area usually comes at the expense of a different kind of battery life, ie "battery life per phone".
I personally am one of those who is a little irritated by the non-replaceable battery on the One because I intend to keep the phone for many years. This applies to almost nobody else I realize, but for me this thread is a helpful summary of the exact steps I need to *avoid* if I want to get the longest lifetime (measured in years, not minutes) out of the battery.
Click to expand...
Click to collapse
I only needed to do it once...for regular charging I recommend charging while off then plug it out turn on and charge will drop to 99% when plugged in charge until light is green..or you can charge normal after this point your battery stats should be good
HTC ONE rooted,S-Off,SuperCid
Arcadia310 said:
What's wrong with turning the phone off every once in a while and letting it charge up fully?
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Click to collapse
gemini002 said:
I only needed to do it once...for regular charging I recommend charging while off then plug it out turn on and charge will drop to 99% when plugged in charge until light is green..or you can charge normal after this point your battery stats should be good
HTC ONE rooted,S-Off,SuperCid
Click to expand...
Click to collapse
actually i'm totally cool with doing this procedure every once in a while as a way to just what it says, get a few extra minutes of battery life. hell, if very precise runtime estimates are important to you and this helps calibrate that, great. i'm all for that too. i actually *have* tried something like this and my phone didnt die and i'm sure i got a little extra run time that day.
i just wouldn't do it *every* day.
one of the findings in another thread around here (something about battery "health") was the battery ages quicker at higher voltages such as those used towards the end of the charging cycle. if you are willing to constrain yourself to charging the phone to *less* than 80% capacity (ie the opposite of what this thread is about) you will double the useful life of the actual LiOn (or LiPolymer or whatever) material in the phone.
that is all. not trying to discourage anyone from *ever* doing this procedure, just explaining why i actually strive to do the opposite most of the time.
carry on.
Known fact... it is impractical to FULLY charge up a battery while is is in use (hence, being drained). Plain and simple physics at work here and I can vouch for this based on the many years I worked in the Navy charging, repairing, replacing, and rebuilding naval vessel batteries. Granted these are not huge deep cycle batteries but the charging principles are the same.
As as matter of fact, just did the method the OP was kind enough to suggest to us and it worked like a charm. Noticed a higher mv reading on my battery! Not much but I will take it. Who would have figured on that...
+Thanks to OP for bringing this up.
EDIT: For the record, I would normally reach 4310-4313mV... after this I am reaching +4335mV - Not much but I'll take it.
veritasxe said:
Thanks, I had a feeling the calibration was a little off since the phone shuts down at around 5%, let's see what happens.
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Click to collapse
That's only because fast boot is most probably enabled...
Kahbrohn said:
Known fact... it is impractical to FULLY charge up a battery while is is in use (hence, being drained). Plain and simple physics at work here and I can vouch for this based on the many years I worked in the Navy charging, repairing, replacing, and rebuilding naval vessel batteries. Granted these are not huge deep cycle batteries but the charging principles are the same.
As as matter of fact, just did the method the OP was kind enough to suggest to us and it worked like a charm. Noticed a higher mv reading on my battery! Not much but I will take it. Who would have figured on that...
+Thanks to OP for bringing this up.
EDIT: For the record, I would normally reach 4310-4313mV... after this I am reaching +4335mV - Not much but I'll take it.
Click to expand...
Click to collapse
Ahhhh vindication ...
HTC ONE rooted,S-Off,SuperCid
As fun as it is to mock, this most likely does work. HTC seem to be pretty bad at making battery algorithms, never found myself having to do this on the galaxy nexus or nexus 4. But my battery drops to 85 darn fast now and I'm pretty sure this will help. I remember this was helpful on the desire and desire HD too.
Sent from my HTC One using xda premium
A lot of people say this is merely a placebo effect, but I agree that it works very well for me with my device.
Humbly Sent from my HTC One running Stock+GE UI

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