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Hi guys
I should be picking up my SGS2 today and I was just wondering what exactly I should be doing with the battery? I've read in a bunch of places that draining the battery fully and then recharging it fully gives better battery life, but I've also read this:
Lithium ion batteries do not respond well to full discharge, you will see reduced capacity and early failure if it happens too often. In any case it is not possible to overcharge the battery on a BlackBerry because the battery and phone have enough intelligence to control the charge (unless the battery is already defective).
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(this is from crackberry.com but you get the idea)
What's the best thing to do?
And on Android phones, when the battery indicator shows 20% or something, is that when the phone is going to die? Or will it die at 0%? Obviously at 20% it would be to protect the battery but maybe Android has been programmed to show 0% when the battery is actually at 20%.
Thanks,
Elliott
read manuals !!!!!! You can see this
Did not receive an owners manual with my phone. Anyway...phone is charging now so too late I guess...
Starholdest said:
Did not receive an owners manual with my phone. Anyway...phone is charging now so too late I guess...
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The manual is probably stored on the phone, at least my new Ascend II came with its stored on the phone, you have to goto the big menu (forgive me for not knowing the technical term for it) to find it however
i got my battery fully charged...then in the first day i discharged it till 10% at least that's what my phone was saying
i read too that the new li-ion batteryes do not need to be "formated" (fully discharged till the phone dies and then fully charged with the phone turned off) in android case i think that thing is not posible coz it needs at least 5% to pass the bootloader and then begin to charge
anyway in my manual it says that the battery will begin the normal state after 8 days of use, until then it may disschage quick
i have a motorola defy
Calibrate the battery. Charge the phone while its switched off for about 6 hours, and then use the phone untill the entire battery runs out and it switches off on its own. After this, the phone should be able to use the battery properly.
i just used my galaxy and made it empty, then charged it full.
nowadays i have runtimes from 3days (72 hours) and then its @ about 5%
there seems to be a lot of back-and-forth regarding whether or not draining a battery is healthy; i drain my iphone battery down to zero about once a month and the battery has been doing fine for two years . . . whether it would be doing just as well without the draining time is anyone's guess.
I have always been under the impression that lit-ion batteries do not need any kind of special care or break in. But since our phones estimate the charge, we should occasionally let the battery run out to reset the calibration in case it gets screwed up.
Sent from my DROIDX using Tapatalk
I don't think you need to worry about draining the battery till it's dead. My phone dies often and the battery is still kickin It's my understanding, that the purpose of draining the phone before you charge it is to calibrate what the OS says for charge remaining to the battery's actual charge.
Or something like that...
Hi all,
I have my sgs 2 since June and it's working pretty well apart from the battery drain which is very harmful in my daily life
I've recently flashed the Cognition 1.30 (last friday). Before that, my sgs was able to last the entire day before discharging with a moderate use (10-20 mn on games, few sms, 15 mn consulting mails, 1 hr on internet). Since i've flashed with the cognition Rom, the battery drain is really awesome!!!!!!
I fully charge the phone (switched off) then when i switch it on and the phone stays idle, after 1 hr or so, i've already lost almost 20%. When i'm on internet or playing games, the battery loss is approximatively of 1% per min.
I've made a full wipe and recalibrated my battery so normally it should at least last a day and thats not the case.
Could somebody help me or should i buy a new battery and test it ?
Because i relly like this rom and from others users, it has a good feedback concerning the battery use
Hello everybody,
to begin with i must say that my phone's battery used to take 2 to 3 hours max to charge from wall charger but now since i flashed the ROM and it has been acting so weird when charging. I have monitored the charging time and found that
after 1hr the battery goes to 50 %
after 3 hrs its up to 70%
after 5 hrs its up to 89%
then after being on charge for 6 hrs its fully charged !!!
p.s the battery lasts the normal time it used to.
so what's going wrong here?
your help is much appreciated!
You're using the same charger right? I believe aftermarket chargers are slower and suck!
KAwAtA said:
You're using the same charger right? I believe aftermarket chargers are slower and suck!
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Yes its the same original charger!!
The only suggestion I have now is to double check if it's really because of the rom?
Try using another rom for a day or so and see if it also takes you that long to recharge. Don't restore apps or anything yet either! (could be an app causing it, however that's unlikely) Mine only takes long to charge if I'm using too much stuff while charging it.
It is normal. Charge voltage is lowered when reaching 70% (or 80%, you can check it at battery stats) and then even lower when almost full until it is really 100%, not to harm the battery pack. Your previous cycles only semmed faster, the more you use your phone the better your battery stats will be.
If you wiped battery stats before, it could be another reason for strange figures.
Most importantly, if you want to have a good battery life on the long run, dont fully discharge/charge it.
Recently I've updated my Note through OTA to 4.1.2.
I've spot that after update the Note is just draining the battery.
I could read about 10 hours on it before, and now it is only about 6 !!!!!
I even do not mention gaming, which is draining the battery in 2.5-3h from 100% to about 5%. I could play approx. 5-6 hours before.
It's ridicules.
Did any of you spot the same thing?
I haven't installed any additional apps after update that may "help" to discharge the battery.
The values above are based on Screen usage time in Battery menu.
Any suggestions?
After the update, I'm facing recharging issues. The tab is taking twice the time of what it used too to recharge to 100%.
i haven't spot any issues with charging.
.
Same here.Used to get 10 hours of screen on time,now i am lucky if i get 8 hours!
Verstuurd van mijn GT-N7100 met Tapatalk
Same here...
Some tips :
Kill all apps, switch to offline/airplane, and power saving mode when charging..
Still not working?
Try reboot your device once or twice if necessary..
And your device will charge normally
Work on my gnote...
I hope it will work for you too
Correct me if i'm wrong
Im using juice defender with good results, I lost a pretty noticeable amount of battery time after 4.1.2, too.
Maybe a problem with the battery stats?
Try to drain the battery empty and full charge afterwards.
Gray44 said:
Maybe a problem with the battery stats?
Try to drain the battery empty and full charge afterwards.
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Click to collapse
It will damage the lithium battery when you drain it till empty
I think it is Wi-Fi that drains the battery !!!!
Usually I was leaving the tablet with wi-fi on all the time. After 4.1.2 update it takes approx 2% of battery per hour !!!!!!!!!! when you do not use the tablet but wi-fi is on, so after night in the drawer you had approx 10-15% drained.
When I turned the wi-fi off and left it overnight i haven't loose even a 1% during the night !!!!!
I have to try to work on it as usual but with wi-fi turned off, it will be difficult though as usually i play on-line or browsing the net
I think they f#^%*d something in 4.1.2 update with wi-fi energy consumption. hope they will repair it in next update.
.
zaydvath said:
It will damage the lithium battery when you drain it till empty
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I mean, just let the device turn off by itself, and after that, charge 100%.
kayteck1 said:
Recently I've updated my Note through OTA to 4.1.2.
I've spot that after update the Note is just draining the battery.
I could read about 10 hours on it before, and now it is only about 6 !!!!!
I even do not mention gaming, which is draining the battery in 2.5-3h from 100% to about 5%. I could play approx. 5-6 hours before.
It's ridicules.
Did any of you spot the same thing?
I haven't installed any additional apps after update that may "help" to discharge the battery.
The values above are based on Screen usage time in Battery menu.
Any suggestions?
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Click to collapse
Yeah, I had this problem after I updated too. It was also laggy. I did a factory erase and now it works better. I think it is still draining more than before, but not as bad as after I updated. I think a good rule of thumb is to wipe everything after an update and start all over. You could also try wiping and flashing the rom for a fresh install.
I suggest you to change your rom to germany stock 4.1.2...
It will solve your charging problem
Tested on my gnote
In the last 10 days or so, I have noticed that battery care isn't activated when I charge my phone overnight. I always check to make battery care is on and I leave my phone left on overnight too. 4 weeks previous to this issue, I hadn't been experiencing any such issues.
Any suggestions guys?
Sent from my F8331 using XDA-Developers mobile app
I had the same problem after previous weekend, it worked perfectly till Thursday but when I didn't charge it overnight from Friday till Sunday it stopped working and activated itself again yesterday.
Thought that it would learn that I charge the phone overnight only during work days and don't during weekends.
Still I think it's a great idea but it seems that it needs longer learning or some changes.
Wysłane z mojego F8331 przy użyciu Tapatalka
It's very stupid I think; they should've allowed the user to set the wake up time instead of "learning", it has never worked correctly for me, its always 1-2 hrs off which makes it kind of useless. I hope they can do it in a future update.
Still having no luck with battery care. Would a factory reset likely to resolve the issue?
Sent from my F8331 using XDA-Developers mobile app
They should allow to select the timewe want to charge it fully to 100% manually as well in the software update.
Or at least tie into system alarms!
Sent from my F8331 using Tapatalk
I find that if I do a short charge during the day, it disrupts the Battery Care functionality (overnight) and then has to re-learn with a few normal overnight charges.
This seems to nullify the benefit of Battery Care as my phone would now sit on the charger for long periods at 100% again while re-learning...exactly what Battery Care is suppose to prevent.
I might as well just do small charges during the day when convenient so I don't have to charge overnight and "ruin" my battery further while it re-learns. Frustrating.
I really hope they get this feature sorted out.
It helps me to plug the phone in, go to settings, switch battery care off then back on and it usually works. I still keep the setting on all the time. Also I typically restart my phone after plugging it in every night and closing backround running apps. It seems to minimize any bugs I have experienced.
So I generally plug in the phone, restart it, then flick battery care off then back on and I haven't had many problems. That would be my suggestion to try
I should add that I have a US version of the phone. I flashed UK firmware then performed a software repair via Xperia companion. The last software repair I performed was probably over a month ago
Also, lesPaulGuitar, are you plugging your phone in for a short charge during the day because without doing so you would not have enough charge to reach the end of the day? If not, i suggest avoiding uneccesary cycles on your battery. Every additional cycle you put on it. Wether charging from 50% to 100% or from 40% to 80%, an additional cycle will reduce over all cycle life. Especially if the cycles aren't complete (as in not charging fully before discharging again). While lithium ion doesn't develop a memory it does still have a limited cycle life
This **** is stupid and useless without user input. Why can't I choose the times? I know everything better. Not everybody has dedicated times for work or. School.
Verstuurd vanaf mijn F8331 met Tapatalk
Does the phone need to be left turned on during the night while charging for this to work? I have the phone coming and I was under the impression that this battery feature would work even with the phone turned off. Any clarification is appreciated.
Hershchel Clogs said:
It helps me to plug the phone in, go to settings, switch battery care off then back on and it usually works. I still keep the setting on all the time. Also I typically restart my phone after plugging it in every night and closing backround running apps. It seems to minimize any bugs I have experienced.
So I generally plug in the phone, restart it, then flick battery care off then back on and I haven't had many problems. That would be my suggestion to try
I should add that I have a US version of the phone. I flashed UK firmware then performed a software repair via Xperia companion. The last software repair I performed was probably over a month ago
Also, lesPaulGuitar, are you plugging your phone in for a short charge during the day because without doing so you would not have enough charge to reach the end of the day? If not, i suggest avoiding uneccesary cycles on your battery. Every additional cycle you put on it. Wether charging from 50% to 100% or from 40% to 80%, an additional cycle will reduce over all cycle life. Especially if the cycles aren't complete (as in not charging fully before discharging again). While lithium ion doesn't develop a memory it does still have a limited cycle life
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Click to collapse
I have also tried turning Battery Care on and off with no success unless it was already dialed in to begin with. In that event, it would then work. I'll try restarting the phone first next time it acts up...although I think I've done that too before.
Regarding small charges during the day, it is usually due to not starting the day with a full charge such as when ending the previous day with, say, 50% left or so. Or it could be due to the battery running out before the day is finished from heavy camera use, etc.
My understanding about L-ION batteries is that small charges that add up 100% in total (like five separate 20% charges) equal one charge cycle. So no harm doing small charges...
---------- Post added at 04:05 PM ---------- Previous post was at 04:02 PM ----------
jaseman said:
Does the phone need to be left turned on during the night while charging for this to work? I have the phone coming and I was under the impression that this battery feature would work even with the phone turned off. Any clarification is appreciated.
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I'm pretty sure that that phone needs to be on because it is a piece of software that needs to run which controls it.
That said, I've not tested it with the phone off.
Any time you reverse the charge current is one cycle. How far down you discharge is your depth of discharge. So even if you drain the phone from 80% to 70% and plug it in and only charge it back up to 80%, that's one cycle. What you are saying would be true if you don't discharge the battery at all, similar to what Sony does with their battery care. You can charge lithium in short bursts but if you discharge between those charges then you are cycling your battery. So no, short incomplete charges aren't absolutely detrimental to your battery but will be considered in regards to your overall cycle life. For every 70 millivolt (roughly 10%) drop in voltage during a cycle, your overall cycle life is cut in half. Meaning you'll get twice as many cycles if you only drain your phone to 60% instead of 50%. To take full advantage of the chemistry, it is best to fully charge before discharging. You could expect 2500-3000 cycles at 10% depth of discharge, but only 500-700 or so at 50% depth of discharge before capacity is 70% of what it's rated. This is information I got from Cadex Labratories and deal with on a daily basis at work.
Hershchel Clogs, does the Qnovo battery technology seem sound based your battery knowledge? Also, thanks for sharing.
Sent from my F8331 using XDA-Developers mobile app
Hershchel Clogs said:
Any time you reverse the charge current is one cycle. How far down you discharge is your depth of discharge. So even if you drain the phone from 80% to 70% and plug it in and only charge it back up to 80%, that's one cycle. What you are saying would be true if you don't discharge the battery at all, similar to what Sony does with their battery care. You can charge lithium in short bursts but if you discharge between those charges then you are cycling your battery. So no, short incomplete charges aren't absolutely detrimental to your battery but will be considered in regards to your overall cycle life. For every 70 millivolt (roughly 10%) drop in voltage during a cycle, your overall cycle life is cut in half. Meaning you'll get twice as many cycles if you only drain your phone to 60% instead of 50%. To take full advantage of the chemistry, it is best to fully charge before discharging. You could expect 2500-3000 cycles at 10% depth of discharge, but only 500-700 or so at 50% depth of discharge before capacity is 70% of what it's rated. This is information I got from Cadex Labratories and deal with on a daily basis at work.
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Click to collapse
Should I follow this suggestion? Or keep small cycle of charges by using accubattery suggestion to plug off when I reach 80%?
For two weeks my phone (Mate 8 L29) is discharging quickly. Initially I thought it should be because of some applications and so I uninstall the main applications running in the background like facebook.
But that did not change anything. Yesterday I formatted my phone and switched from a B180 Ephemeral rom to the stock B560 (Ephemeral B180 -> Stock B180 -> Stock B560).
The battery was behaving rather well until it reached about 60%, at which time the charge literally collapsed. The battery has gone from 60% to 27% in a few minutes. Around the 30% I saw him lose 1% every 15 seconds! So I plugged in the phone and the ascent of the load was as fast as the fall between 30 to 60%. After 60% the battery seemed to recharge at a more normal rate.
Do you think it is the battery that is physically dead and I need to replace it or can it come from a bug in the battery display?
The phone is less than a year old, but I could not use the warranty since I installed a rom.
On the screenshot you can see the battery go from 60% to 30% then go up to 60%, all in just about 30mins and without using a greedy application like a video game.
darian3 said:
For two weeks my phone (Mate 8 L29) is discharging quickly. Initially I thought it should be because of some applications and so I uninstall the main applications running in the background like facebook.
But that did not change anything. Yesterday I formatted my phone and switched from a B180 Ephemeral rom to the stock B560 (Ephemeral B180 -> Stock B180 -> Stock B560).
The battery was behaving rather well until it reached about 60%, at which time the charge literally collapsed. The battery has gone from 60% to 27% in a few minutes. Around the 30% I saw him lose 1% every 15 seconds! So I plugged in the phone and the ascent of the load was as fast as the fall between 30 to 60%. After 60% the battery seemed to recharge at a more normal rate.
Do you think it is the battery that is physically dead and I need to replace it or can it come from a bug in the battery display?
The phone is less than a year old, but I could not use the warranty since I installed a rom.
On the screenshot you can see the battery go from 60% to 30% then go up to 60%, all in just about 30mins and without using a greedy application like a video game.
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Click to collapse
you may need to replace your battery..
when exactly did it start.
Do you always charge up your phone A's soon as it starts discharging
Do you always plug in your phone while doing heavy gaming?
rhaspody said:
you may need to replace your battery..
when exactly did it start.
Do you always charge up your phone A's soon as it starts discharging
Do you always plug in your phone while doing heavy gaming?
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Click to collapse
It started about two weeks ago.
It happened several times to play with the phone connected. In general I expect it to be under 20% to recharge it, sometimes I charge it before if I know I have a long day without access to a power outlet.
I understand the questions very well, but it sounds quick. That a battery is so worn out in a little less than a year.
Im having the same issue and In going to replace the battery today, I'll tell you the results
Enviado desde mi HUAWEI NXT-AL10 mediante Tapatalk
janrck said:
Im having the same issue and In going to replace the battery today, I'll tell you the results
Enviado desde mi HUAWEI NXT-AL10 mediante Tapatalk
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Please do keep us posted in case this is a problem of Mate 8
Is it possible to make the message "your device has been unlocked" disappear ? That would allow me to try the guarantee.
I've change the battery and everything backs to normal. The battery life is huge again.
janrck said:
I've change the battery and everything backs to normal. The battery life is huge again.
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Where did you go to change the battery, was it an official change? Did you lose your warranty? How much was it?
Thanks
Also how have you guys been charging your phones? Overnight? Fast charging overnight? Or slow charging overnight?
I changed the battery myself with a youtube tutorial, very easy:
https://youtu.be/b7f8fdYz5ig
I was charging my phone overnight wit fast charging. I know fast charging overnight is useless, but the official charger only do fast charging, so no choice.
I want to change my battery myself, like janrk, but first, just out of curiosity, im going to try the sellers warranty. I try to join Huawei, they just didnt answer.
A lot of chinese website sell "Official Mate 8 battery", but im not sure they are really official. I find 7 to 9€ battery on chinese web site, 12€ on Amazon (chinese seller), 25 to 35€ with european seller. That's only for the battery, i you didnt want to change the battery yourself its between 49 to 80€.
My battery cost me 13€, and is identical to the original battery
Where do you buy it ?
I contacted the after-sales service of Huwaei. They told me that it was necessary to cut the wifi and the mobile data when the phone is in charge. And that in general it was necessary to cut the wifi and the mobile data when one does not have the use of it. I deduce that they have poorly designed these elements of the phones, and that they cause it to overheat. This should reduce the battery life.
I asked them if it was possible to have a warranty. It is possible, but for this i must accept to send the phone to them for several weeks. Since I do not wish to have no phone for several weeks I will order a battery. Their after-sales service is really useless: /
darian3 said:
Where do you buy it ?
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Here https://www.spainsellers.com
stupid thingy ...
almost same thing happend on me and i had to replace battery to solve it.
it took only 10 month to kill damn built-in battery.
i can't belive it. its just 10 month.
i never see like this.
most cheapest battery (made in china) was worked over 24 month.
I just change the battery, is actually that fixes the problem. Now I'm not sure that the battery is necessarily bad at the base. I wonder if the design of the phone does not cause an overheating of the phone that is damaging the battery prematurely.