For those unaware, there is an app (Battery Monitor Widget) that estimates your mAh based on the current sensor for any continuous charge over 50%, larger being better . It's a nice alternative to all the "what's your SOT / battery life" threads where everyone has different usage patterns, signal quality, brightness, etc. Though it's not the full story as variance in chips/screens can yield different power usage. Though you can also compare the % drain / hour in different situations.
https://play.google.com/store/apps/details?id=ccc71.bmw
Automatic mA retrieval seems to work fine (selects the S6/Note 4 method), and a recording interval of "Every minute while charging (accurate mAh calculation). After that, all you have to do is charge your phone when it gets low on battery and look at the calibration tab.
I've used it on other (used) phones and it seems to give somewhat realistic numbers, but never a new phone/battery. Anyone else's past experience with this is welcome. It's been quite helpful in buying 3rd party batteries and used phones as it's a real estimate.
Definitely important to have a baseline comparison with other identical devices so you can see what's normal and what's typical measurement error on each model.
It seems to work best if you don't use the phone at the same time, otherwise it underestimates. Overnight non-wireless charging works best. Basically, when you use the phone or charge wirelessly, more of that current goes to heat causing underestimates.
I'm only finding reasons for underestimating, so I'd still generally trust the highest couple calculations within the past month, unless the model just doesn't report current well.
FYI the phone actually pulls more current than a non-stock USB charger on load, so I had to let it charge to 2% after the phone turned off in order for it to survive boot-up.
My measurements after the first one are pretty consistent so far:
https://imgur.com/jOzHQQB
2943, 3400, 3421, 3356
I think this app doesn't work properly with latest samsung smartphones.
I had two S6 edge+ that should have a 3000mah battery and the calculated mah was allways between 2400-2950mah.
Otherwise this app worked properly with my S4 or note pro..
rotorocks said:
I think this app doesn't work properly with latest samsung smartphones.
I had two S6 edge+ that should have a 3000mah battery and the calculated mah was allways between 2400-2950mah.
Otherwise this app worked properly with my S4 or note pro..
Click to expand...
Click to collapse
There is one report that it's accurate for the S7 non edge
https://www.reddit.com/r/GalaxyS7/comments/4bmg3z/whats_your_battery_mah_calculation/
Did you use the phone during those 2400 estimates? Due to the variance it's probably best to believe the highest number, in which case your 2950 is quite accurate. I'll have to run mine again.
It's been quite helpful in buying 3rd party batteries and used phones as it's a real estimate.
I tried every setting with the s6 edge+ and allways charge the device from a minimum of 20-30% - 100%
This app was so inaccurate that i deinstalled it and since then i use only gsam battery monitor.
I don't need to know the exact battery capacity even if this app would calculate it right.
It makes me crazy because i allways thought my battery is faulty and it was one of some reasons for me to buy another s6 edge+ but there were the same results..
rotorocks said:
I tried every setting with the s6 edge+ and allways charge the device from a minimum of 20-30% - 100%
This app was so inaccurate that i deinstalled it and since then i use only gsam battery monitor.
I don't need to know the exact battery capacity even if this app would calculate it right.
It makes me crazy because i allways thought my battery is faulty and it was one of some reasons for me to buy another s6 edge+ but there were the same results..
Click to expand...
Click to collapse
Definitely important to have a baseline comparison with other identical devices so you can see what's normal, sucks that you had to buy another one to get that. That's basically the point of this thread, to get a baseline and understand what's normal, but also find out when you get a faulty one that deviates from everyone else's.
I wouldn't call it inaccurate, you said yourself it measured 2950 out of 3000 mAh, it's just you didn't know how easily it can understimate under load and other conditions. It's actually an invaluable tool when buying 3rd party batteries and used phones to get an independent capacity test.
Take a look at this thread, #267.
http://forum.xda-developers.com/showthread.php?p=64599255
I posted some screenshots from my battery calculation.
I know i never testet my S7 edge but there you can see what i mean with inaccurate.
Cheers
Martin
rotorocks said:
Take a look at this thread, #267.
http://forum.xda-developers.com/showthread.php?p=64599255
I posted some screenshots from my battery calculation.
I know i never testet my S7 edge but there you can see what i mean with inaccurate.
Cheers
Martin
Click to expand...
Click to collapse
If everyone in your model family gets the same variety of measurements you know you're fine. If everyone consistently gets a higher value, then you know you have a potentially weaker batter.
Not saying you do, but those measurements are what my wife's phone looks like who uses it all the time on the charger or has bad signal / high drain. When she doesn't, she gets a measurement close to the real capacity, that's why I said yours seems accurate as it has some measurements around 3000 mAh.
In addition, batteries loose capacity sitting on the shelf, so there's always the possibility of it coming with a lower than the full capacity
Ok, i never used it while charging but maybe it was because most of the time i charge wirelessly?
rotorocks said:
Ok, i never used it while charging but maybe it was because most of the time i charge wirelessly?
Click to expand...
Click to collapse
Ah yes good catch, that could be it. Also other things like the automatic updating of a bunch of apps, or some other strenuous synchronization. I was just reading this:
http://batteryuniversity.com/learn/article/what_is_the_c_rate
When discharging a battery with a battery analyzer capable of applying different C rates, a higher C rate will produce a lower capacity reading and vice versa. By discharging the 1Ah battery at the faster 2C-rate, or 2A, the battery should ideally deliver the full capacity in 30 minutes. The sum should be the same since the identical amount of energy is dispensed over a shorter time. In reality, internal losses turn some of the energy into heat and lower the resulting capacity to about 95 percent or less.
Click to expand...
Click to collapse
So basically, when you use the phone, more of that current goes to heat, and I think that's also true for wireless charging: both possibly underestimating the capacity.
Nevertheless, I'm only finding reasons for underestimating, so I'd still generally trust the highest couple calculations within the past month, or some models just doesn't report current well.
My measurements after the first one are pretty consistent so far:
https://imgur.com/jOzHQQB
2943, 3400, 3421, 3356
So I've stopped caring about careful mearuements, use it on the charger, do shallow charges, and it actually still seems to be very consistent on my S7 Edge (my previous phones has estimates with larger variances).
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Related
Hi,
I saw this
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=140013499121
and ordered one because it was really cheap. Well after that, I have been a bit worried as immediately afterwards, I read about faulty batteries which explode cell phones, etc
So I just wanted to know whether anyone had bought this battery off ebay and how it was working for them. It seems like an amazing deal, 1800mah over the stock 1200. But it also looks like a home made job so I was just wondering on the quality.
Is anyone using this or does anyone have any idea about it?
Any replies or information would be tremendously helpful.
Thank you.
I'm surprised if they can cram 1800mah into this small battery (at that price). But you never know...
I think worst case is that it won't quite be 18000mah. Faulty batteries often get far too hot before actually exploding and more often that not they would burn out rather than explode (in my limited experience).
I have 2 x 1500mah batteries that I bought in the UK (from Expansys @£19.99 each). Very happy with them.
Anyway let us know how you get on with them...
I have the above mentioned 1800 mah battery, and so far (two months) no problems with it. It does get hot just before it expires out of energy, but not so hot to explode (I think it was similar with the original battery)...
Not too thrilled about the performance though, although it does give more then the original.
Oh ok...well I have it in my hand right now and was just waiting for some reassurance before proceeding to let it charge overnight. I guess it shouldn't be a problem.
Thanks for the replies guys
krale: What kind of performance are you getting? I remember lurking and reading your previous posts on it...you said it goes "on and on and on" Has that changed now?
I'll be happy even if it gives me 10% more usage above the normal battery.
I really do appreciate such quick replies Thank you...I'll sleep a little better tonight, charging my phone...hehe
On the original charge, I did get amazing performance from this battery. However, as soon as the second charge, the battery was at about 35-40% above the original battery performance, which i guess is just below what should be expected, as the stated increase is 50%.
In any case, I would not go back to the original battery.
Cheers.
Thats excellent. Thank you so much for your reply
I installed it and my phone is charging right now. I have also noticed that it fits "just right" in my phone and I had a little creaking issue of the back cover with the original battery, which has been solved now (I have no clue how).
It's charging...I'm going to let it for another 10 hours then I think it should be ready for use
I think 1800mah is a tremendous improvement over the paltry 1200 which comes along with the device. It's quite surprising to see such few after market accessories for the prophet, considering its quite a popular device.
I'm getting 20-30% more time with the 1500mah battery, so it sounds about right that you get up to 40% with the 1800mah. I use mine for SatNav on a motorbike (among other things) it's great to have such a small unit with a good battery life. I had an M5000 (Universal) before!
Well after charging it last night, I've been using it normally today.
Usualy, by this time my phone is around 65% or something.
But its still at 83% so I am quite happy
Can you post pictures of it? On the ebay site they talk about removing "the front side plastic cover' ? So does it have a cover?
It looks the same as the normal battery, except it has 1800mah written on it instead. It's not made by Dynapack. I'll see if I can post some pictures of it.
Basically, the normal battery is encased in plastic. The white plastic is the cover and the battery is housed in it.
What these guys have done is remove the plastic of one side (the front) and put a thin sheet plastic cover instead. This gives them more room to put a higher capacity (and therefore, larger) battery inside. You see, a higher capacity battery will be larger than the original, that is why they need to remove the thick white plastic and put a thin sheet instead.
In looks and operation, it feels just like the normal battery. But you can see what they have done if you look closely.
I'll post pictures of it if you still want them.
I get it what you mean. I won't mind a picture anyways though but its no big deal. I have the 1500mHA battery now, and am considering this, (more is always better)....
Can anyone comment on the 1500's performance in comparision to this?
It is made by Dynapack, at least that's what mine says.
I'll need to get hold of a digi cam to get a pic...give me a few days
On the ebay listing, it states in the information:
** This is a replacement battery, this is not design and manufacture by Dynapack **
So while it says Dynapack on the front (mine does too), they have done the job themselves.
I am happy with the performance. It lasts me well on a busy day..
1800mAh High Capacity Batteries
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Above: Magician/Prophet/HP6515 1800mAh Battery
Above: Universal 3200mAh Battery
Above: Wizard 2400mAh Battery
I'm dealing with all these PDA batteries. They are definitely safe to use. I've been using them all this while.
hey pheonix how's the 1800 battery working out for you? I've heard of and experienced 3rd party batteries that worked fine for a while then started losing it's capacity hold, and started lasting less and less on normal usage.
Hi..
As of now, the battery is holding up even better. Earlier, it started off well but lately, I have noticed a major improvement in battery life even when I have played a lot of games/made calls during the day.
I regularly seem to be at a healthy 70-75% rather than the 50-55% it would have resulted in with similar activity on the old battery.
have you ever tried running it down, as in 5% or completely drained, cause my experience with these batteries was, it would jumps from 30% remaining to 0% in a few minutes, so everything seems normal until around 30%.
Nope I haven't tried running it down.
Tomorrow, being a Sunday, is a good day for me to try that.
Let's see...I won't charge it tonight and check how it behaves tomorrow, when it should hopefully run out...
Well it didn't exhibit any sort of behaviour like that.
It went down quite gracefully and slowly. After 48 hours of standby, lots of calls, messaging, gaming and wifi, it was left at 24% before I finally decided to charge it at night for the next day.
I think its excellent.
I already have the 1500mAh battery, but decided to buy this 1800mAh battery from reading this article, but unfortunately my results have not been so good.
I'm wondering if anyone has noticed this problem, (and from some of the stories maybe you have?)
My battery seems to fluctuate about 20% +/-. For example, after a full charge and listening to MP3s on the train for 30 minutes the battery would show 82% on the 1200mAh, 86% on the 1500mAh, but the 1800mAh would show anything from 96% to 65%. If I leave it on still, (not charging) typically the battery will start going UP about 1-2% but if I reset, it usually would go to the higher number like 96%, but sometimes go lower, like 50%
One time, while it was on for a 10 minute period it when from 82% to 56% to 73% this was on a 2 minute time out, and me just turning it back on….
Initially I thought maybe it was a dud but a friend of mine also bought one, (using it in a Prophet, I have a Jam) and is getting the same result, though his does not swing as often, he usually will get about a 20% variation, but usually a reset will calm it down. Unfortunately for me the reset trick doesn’t seem to be working anymore…
Anyone else getting results like this? Anything I should try? I’ve been thinking of hard-resetting and running clean to see if the problem is consistent, but that’s a real hassle if other people are seeing similar results. I’m overclocking, anyone else?
Strangely the 1500 is very reliable and consistent.
Yes, according to this guy.
http://forum.androidcentral.com/galaxy-tab/44768-bettery-life-results.html
Anyone feel the same way?
its better than i expected, but i doubt its better than sammys tests
Same here it seem way better than I expected but I haven't tested the battery life thoroughly yet but indeed it is very good.
Tomorrow I will be flying back home. I'll be in the air for about 6 hours. I have 2 movies to watch, plus I'll be playing games and will listen to music. I am planning not to charge my tab until I get home. Let's see how it goes. I will update.
Being that my battery use is ~80% display, i should probably consider turning down the brightness. Still, I have been playing with it here and there throught the day (about 7 hours away from the charger now) and the battery level is still 75%
Somebody needs to find a way to mod the autobrightness to have a few options...I like the feature, but it is just a bit too dim for me.
beestee said:
Being that my battery use is ~80% display, i should probably consider turning down the brightness. Still, I have been playing with it here and there throught the day (about 7 hours away from the charger now) and the battery level is still 75%
Somebody needs to find a way to mod the autobrightness to have a few options...I like the feature, but it is just a bit too dim for me.
Click to expand...
Click to collapse
My tab lost 10% battery for one hour medium usage (display on, 30% brightness, reading mainly). Dose it mean I have a battery issue here?
raymentchen said:
My tab lost 10% battery for one hour medium usage (display on, 30% brightness, reading mainly). Dose it mean I have a battery issue here?
Click to expand...
Click to collapse
no. it just depends on what your doing. Wifi signal strength, Cell radio strength. the position of the moon and sun, etc.
BTW, battery life does not decrease linearly. so the numbers in that post are ridiculous.
the discharge curve will look something similar to this in most cases
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(red line, also note phones cut off the extreme ends of the scale with regards to voltage to promote cell life)
it takes a few days for the battery (more specifically the charging circuitry) to get into a 'groove' when it comes to properly charging the battery and displaying the correct percentage.
if you want to know more about the Batteries in our phones and Tablets look at RCcar and RC plane sites. they use the same batteries as phones do so pretty much everything you learn there will apply here (except our phones don't draw 20+amps! )
http://www.fmadirect.com/lipo_handbook/fma_lipo_handbook_section2.htm
Mine can easily last and day and a half, very impressed with the battery
crazy talk said:
no. it just depends on what your doing. Wifi signal strength, Cell radio strength. the position of the moon and sun, etc.
BTW, battery life does not decrease linearly. so the numbers in that post are ridiculous.
the discharge curve will look something similar to this in most cases
(red line, also note phones cut off the extreme ends of the scale with regards to voltage to promote cell life)
it takes a few days for the battery (more specifically the charging circuitry) to get into a 'groove' when it comes to properly charging the battery and displaying the correct percentage.
if you want to know more about the Batteries in our phones and Tablets look at RCcar and RC plane sites. they use the same batteries as phones do so pretty much everything you learn there will apply here (except our phones don't draw 20+amps! )
http://www.fmadirect.com/lipo_handbook/fma_lipo_handbook_section2.htm
Click to expand...
Click to collapse
Well, I understand you saying here. But 10% (90% to 80%) per hour for reading ebook only is far away from having a good battery at 4000mah. I will give it a few more days to check.
calin75 said:
Tomorrow I will be flying back home. I'll be in the air for about 6 hours. I have 2 movies to watch, plus I'll be playing games and will listen to music. I am planning not to charge my tab until I get home. Let's see how it goes. I will update.
Click to expand...
Click to collapse
Well? How did that go?
Sent from my GT-P1000 using XDA App
raymentchen said:
Well, I understand you saying here. But 10% (90% to 80%) per hour for reading ebook only is far away from having a good battery at 4000mah. I will give it a few more days to check.
Click to expand...
Click to collapse
That's 10 hours at that usage, give or take, and right around what I'm seeing, 10% per hour of actual usage as an ebook, about 2-5% per hour if it's just sitting there connected, and about 15-20%/hour with heavy surfing or game playing.
I expect if I'm careful and keep the connectivity to a bare minimum, I can stretch 12 hours out of it when travelling.
Oh, and everyone...let the battery run down to zero at least once, preferably twice. We're talking total discharge to the point the phone turns itself off, then charge to 100%. This doesn't hurt or help the battery, but it does help make the actual battery monitoring more accurate.
honestly im not too impressed with the battery. i think the standby time sucks too. the iPad doesnt do a lot of things right, but the one thing it seems to do is to last for days. i realize the battery is close to twice as big but i was just use to that. i mean sure i dont use my ipad anymore, but it seems to last forever. anway, when i first got my tab, i managed to drain it in less than 6 hours. that was right out of the box (so it proly wasnt full all the way, but close to it). i was mad when that happened. that was with the brightness on auto and everything turned off except wifi. i could be just expecting too much. i thought conditioning the battery would be good for it. so i let it die all the way and recharged it to full. today, i wouldnt say i used the tablet like i usually would (i am a HEAVY user) and its been less than 12 hours and its already at 21%. this time it was running on 3G and brightness on low (not all the way, but about 30% or so). i dont even set the brightness to the highest cuz its too bright, auto seems to work the best. maybe im just being a tough critic. i mean my nexus only lasts like 5 hours now a days cuz i just use it too much. but im so use to just picking up another battery and moving along.
been having a good battery life after draining the battery to 3% twice then charging it to full again and now it almost last me 2 days better than my old nexus one using it primarily for comic book reading and bluetooth stereo music almost 6hrs. per day and a little gaming of angry birds and a little video and youtube + browsing calling and texting really don't like games too much
@croak
i've read a forum sometime ago that it's bad to drain li-ion to 0% so i think its better to drain it to near zero before charging again as i've read it may damage the cells if you drain it to 0%
how often should we condition the battery? (let it drain near 0 and charge up)
geogetski666 said:
@croak
i've read a forum sometime ago that it's bad to drain li-ion to 0% so i think its better to drain it to near zero before charging again as i've read it may damage the cells if you drain it to 0%
Click to expand...
Click to collapse
Doesn't hurt a lithium ion battery much at all, it's just another charge cycle.
But if you don't go down to the point that the device shuts off at least once, your battery meter can and often will be off by a good bit. There's never any confirmation. When yours was reading 3%, it might have actually been 8%, or it may have been 1% or less, but until you zero it out, you'll never know, and neither will the device. It'll still know when it's at 100%, but any reading below that can be inaccurate.
And keep in mind, this is NOT zero charge, it is not completely drained (the device does the auto-shutdown specifically to AVOID a complete drain).
ayman07 said:
how often should we condition the battery? (let it drain near 0 and charge up)
Click to expand...
Click to collapse
Lithium Ion batteries don't need to be conditioned. But if you want to calibrate the battery meter, you'll need to do it at least once.
Using my Tab as a 3rd device, with my 1st being a HTC Evo and my 2nd being a Motorola i890, i am very impressed with the battery. Even treating my 1st and 2nd devices as red-headed step children and my Tab being in my hands more then them, my battery is yet to go below 50% in a day, the week i have had it. Even with checking 7 different email accounts every 5 min. Also, my Tab is on Wifi a majority of the day, which i would think puts more of a drain on the battery.
i was a little worried when i found out that the battery was not accessable to be able to swap it out at some point of the day. I have (6) batteries for my Evo, 2 red and 4 blacks. Before my tab, if my evo didnt touch a charger during the day, i would use atleast 4 of those batteries during the day. Yea, the size difference between the Evo and Tab battery is different, so i figured i wouldnt need 5 more Tab batteries, but atleast 1 or 2 extra.
My only complaint with regards to Power/Charging is the length of the USB Charge/Data cable. It is super short. i bought a 6ft extention @ Staples for about $5!
The fresh Tab battery is only spoiling us and will get worse as time goes by. I have been looking for other options in the mean time. Here are a few options i found:
ZAGGsparq 4000 mAh $90 @ fommy
Mophie - Juice Pack Powerstation 3600 mAh $99 @ BestBuy
ClearMax External Battery Pack 5000 mAh $39 @ eBay (questionable)
eGear UB-181 1800 mAh $19 @ eBay
eGear S220 (3-way charge: Solar,ac&usb) 2200 mAh $39 @ eBay
Yoobao YB-602 Power Bank (White or Black) 4800mAh $49 @ eBay
Personally, i think i am going with the Yoobao or Mophie or ZAGG.
***EDIT***
the ZAGGsparq is 6000 mAh, NOT 4000 like i stated above...
Yoobao has only 800 mA of output, too few !
Sent from my GT-P1000 using XDA App
The ZAGG has 2 x 1000 mAh. i wonder what the output is @ 1? I doubt very much that it is 1 x 2000 mAh...
Im impress with the batterry , way much better than my Ipad that I just sold ...
This app called 'screen filter' is causing extremely battery drain through 'android os' even when i shutted it down when i finished.
Afret few hours the battery down to 1%. I afraid that i will have to buy a new battery. Why the phone dose not shut down when it gose below to 10%?
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I've been using Screen Filter a lot for probably more than a year on different devices, including the Note. My Android OS is currently at 4 %. I'm not so sure this app is causing your drain.
The phone shuts itself off some time after reaching 1 % battery level.
I use screen filter daily and do not experience your issue. Check your other apps and be careful what you say about apps unless you are very sure.
Sent from my GT-N7000 using XDA
Ekofasc said:
I've been using Screen Filter a lot for probably more than a year on different devices, including the Note. My Android OS is currently at 4 %. I'm not so sure this app is causing your drain.
The phone shuts itself off some time after reaching 1 % battery level.
Click to expand...
Click to collapse
i'm pretty sure this is the reason for the battery drain. it's the second time it happened to me, last time i didn't knew what cause that.
after short search i found that thread:
http://forum.xda-developers.com/showthread.php?t=1016593
so im not the only one
1% for battery is too risky for ruin it, should be at least 7%
I have been using screen filter app for so long..haven't noticed extream battery drain..will try to remove the app and monitor my battery drain..
Sent from my GT-N7000 using Tapatalk
Yeah, you should check what's draining your battery and stop scaring unsuspecting users. Screen filter isn't your problem. It works perfectly. Open Bbs and check for partial and kernel wakelocks to discover what's causing your issues.
Sent from my GT-N7000 using Tapatalk
Why the ??? should you keep your battery @ 7% and now buy a new one ?
Instead of believing everything you hear and read, go to school and learn physics
My note often runs at 1% and my battery still holds charge like new.
Just don't let it empty without recharging for a longer period.
shirhh said:
This app called 'screen filter' is causing extremely battery drain through 'android os' even when i shutted it down when i finished.
Afret few............
Click to expand...
Click to collapse
Dude.. Basics of Li Ion Battery charging - to avoid memory effects in battery it is always advisable to let it runout to 1% & then recharge it to 100%.
This charging cycle ensures that your battery is performing at its peak.
Too many rechrages at intermediate levels like 30%, 50% etc reduces battery charge holding capacity.
So nothing is wrong with your battery...JUst recahrge it & enjoy.
There is nothing wrong with screen filter app. Have used it on multiple devices including note.
Sent from my GT-N7000 using xda premium
clive48 said:
Dude.. Basics of Li Ion Battery charging - to avoid memory effects in battery it is always advisable to let it runout to 1% & then recharge it to 100%.
This charging cycle ensures that your battery is performing at its peak.
Too many rechrages at intermediate levels like 30%, 50% etc reduces battery charge holding capacity.
So nothing is wrong with your battery...JUst recahrge it & enjoy.
Click to expand...
Click to collapse
This is wrong information. The memory effect only occurs when not discharging the battery fully during the first five cycles. Current batteries do not have even this behavior anymore.
The effect you are noticing is just the battery calibration software in your phone isn't that precise anymore if you only discharge your phone to ~30%. It then tends towards loosing "battery percents" more quickly. It will remain powered on at 1% for a long time.
Li ion don't suffer memory effect, nor decharge/recharge cycle times.
They just have a limited lifetime from date of Manufacturing.
And as I said, don't leave them discharged for a longer period of time,
they don't like that
Diewi said:
This is wrong information. The memory effect only occurs when not discharging the battery fully during the first five cycles. Current batteries do not have even this behavior anymore.
The effect you are noticing is just the battery calibration software in your phone isn't that precise anymore if you only discharge your phone to ~30%. It then tends towards loosing "battery percents" more quickly. It will remain powered on at 1% for a long time.
Click to expand...
Click to collapse
You're right, memory effect existed on NiMH batteries, Li-On's are not affected, in fact it's supposedly better for their life to avoid deep discharges:
Prolonging battery pack life wiki)
- Avoid deep discharge and instead charge more often between uses, the smaller the depth of discharge, the longer the battery will last.
- Avoid storing the battery in full discharged state. As the battery will self-discharge over time, its voltage will gradually lower, and when it is depleted below the low-voltage threshold (2.4 to 2.9 V/cell, depending on chemistry) it cannot be charged anymore because the protection circuit (a type of electronic fuse) disables it.
- Lithium-ion batteries should be kept cool; they may be stored in a refrigerator.
- The rate of degradation of Lithium-ion batteries is strongly temperature-dependent; they degrade much faster if stored or used at higher temperatures.
Also do not think that 1% reading on the display = deep discharge.
I actually had draining issues with my note, but after reseting the note fixed it. I had screen filter installed prior to the reset. Never installed it back like a couple other apps. . So cant really confirm what was causing this issue. The phone was always awake and did spent like 30% while i was sleeping...
Sent from my GT-N7000 using XDA
Moral of the story... Do some research before blaming a program that your not even 100% sure is your issue... Oh and I use it and have had no problems with screen filter...
Sent from my GT-N7000 using Tapatalk
Have been using screen filter on my tab and note for over a year. NO battery drain.
I was knew to Android with the Note, and initially took the battery stats at face value. Over time I've noticed nearly all my problems are somewhat masked by logcat.
There is a slight delay when displaying the batt usage details and nearly all the time the 'app' that is reported as using all my battery life is the last thing that logged data to logcat (and is briefly displayed as logcat before displaying some other app name). In my case it is nearly always AVG that is reported as a battery hog. Further investigation with a log viewer normally yields a different culprit so look carefully at what is using your juice - it probably isn't Screen Filter!
This thread will be for battery discussion related to the One X. At this point we're only speculating, but it will also be a great place to post battery test results from reviews, your own battery life results, and general discussion about improving battery life.
I started this thread because I'm interested in the One X, but assuming that with 80% the battery capacity of my OnePlus One (2,525 vs. 3,100mAh), the OnePlus X will probably have ~20% less battery performance. It will help that the One X has an AMOLED screen vs. LED, so dark pixels are not illuminated, and it's screen is smaller, thus saving some energy. Maybe we'll get 85% of the OnePlus One's battery performance
Just to start a little speculation before the reviews begin rolling in, there are two flagship devices from 2013/2014 that are somewhat comparable (~5" screen, 2,x00mAh battery, SnapDragon 80x SoC):
Google Nexus 5 w/2,300 mAh battery
Samsung Galaxy S5 w/2,800 mAh battery
HTC One M8 w/2,600 mAh battery
Just picking one review site's battery test results (it doesn't matter which one--almost none of them reflect actual user experience accurately), the S5 gets 7h 38 min, One M8 7h 12 min and the Nexus 5 4h 50 min. That's a huge range, but I think it's reasonable to expect the One X to average them since it's battery size is closer to the One NexusM8 and Nexus 5, but it has an AMOLED screen like the S5--so around 6 hrs 30min by Phone Arena's test regiment. The OnePlus One did 8hr 5min by Phone Arena's regiment, so ~80% of that would be 6hr 24min for the One X.
If my speculation is reasonable (iffy at best ), then the One X should have some pretty decent battery life for a 5" device.
Enough speculation for now. Waiting for the reviews to start coming in.
It has AMOLED display, 5" instead of 5.5" screen, a slightly underclocked version of the CPU used in OnePlus One, and when it gets Android 6.0 there are tons of battery related optimizations, I don't think there is reason to be worried...
Also with underclocking CPU and GPU with combination of undervolting will give you a great battery life. Amoled display won't illuminate dark pixels and that's also a big plus over here. With OPO i get around 8h of SOT it 2 days of moderate usage.. messaging, music and that's it mostly. OneX will be same as OPO i think. Smaller screen, new android, kernel modifyfing and you'll be able to get aroung 7-8h of SOT I'm sure
This is the same SoC Qualcomm MSM8974AB that has been used by htc with M8 and Sony in it's Xperia Z2 with 2600 and 3200 mAh battery respectively. as I'm currently suffering low battery backup with Galaxy S6, I'm bit skeptical whether to go with one X or not. If one X manage to reach minimum 4 hrs. SOT I will buy this phone as I already received the invitation.
kachrukamble said:
If one X manage to reach minimum 4 hrs. SOT I will buy this phone as I already received the invitation.
Click to expand...
Click to collapse
SOT is extremely variable depending upon personal usage habits. I don't know how you could possibly find out if you would get 4 hrs with your usage habits before having the device. Maybe find somebody with an X and identical usage habits to you?
Incidentally, the Phone Arena battery test is done with the screen on, and they're getting 6-7 hrs out of similar devices.
We measure battery life by running a custom web-script, designed to replicate the power consumption of typical real-life usage. All devices that go through the test have their displays set at 200-nit brightness.
Click to expand...
Click to collapse
I'm afraid it won't be enough
I live in Rome, so I'll have the chance to buy a OP X the next 11th November event but the battery is the only thing that is stopping me at the moment. I come from a ridiculous Galaxy Nexus battery life and I'd love to have a real long battery life finally. I was interested in the ZUK Z1 for this reason but I'm kind of used to the AMOLED technology and I don't want to go bigger than 5.2" for the display. Please guys post anything you know about the battery life even if iI'm afraid it will be just average and nothing special. 2500ish battery is not enough nowadays.
MroStudios said:
I live in Rome, so I'll have the chance to buy a OP X the next 11th November event but the battery is the only thing that is stopping me at the moment. I come from a ridiculous Galaxy Nexus battery life and I'd love to have a real long battery life finally. I was interested in the ZUK Z1 for this reason but I'm kind of used to the AMOLED technology and I don't want to go bigger than 5.2" for the display. Please guys post anything you know about the battery life even if iI'm afraid it will be just average and nothing special. 2500ish battery is not enough nowadays.
Click to expand...
Click to collapse
I have nexus 4 and its sot is from 3:40 to 4+h. It has 2100mah battery.
It is enough for me to last a day.
Just hope that custom roms will be available.
That will let me to adjust some settings.
Just had a conversation with the chat team, here is the conversation.
19.54.41 GMT - Client said : I am also a bit concerned abou thr battery on the oneplus x, it seems a bit small. Are there any official numbers on how long the device csn hold charge. Screen on time, etc.
19.57.04 GMT - Operator said : The device has 2,525 mAh LiPo battery. Pretty much it'll be good for one day. It is normal for smartphones that has LiPo battery. Overall, it'll just depend on the usage of the device, so to lessen the battery usage, one of the best way is to reduce the brightness of the device and to force close all apps that are running.
Click to expand...
Click to collapse
I know its vague but i'm now pretty sure it'll get me through a day... Also because i'm a light user
I got this phone for almost a week and it has 4h sot of heavy usage. From 7am to 11pm. It's good but not amazing. This is enough for me at least
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By heavy usage i mean always either 4g or wi-Fi. A lot of chrome and spotify
PoloB49 said:
I got this phone for almost a week and it has 4h sot of heavy usage. From 7am to 11pm. It's good but not amazing. This is enough for me at least
By heavy usage i mean always either 4g or wi-Fi. A lot of chrome and spotify
Click to expand...
Click to collapse
Omg you have facebook messenger also. Do you have facebook app also?
If you do this battery life will be amazing for me since im a minimalist.
Fatsodonkey said:
Omg you have facebook messenger also. Do you have facebook app also?
If you do this battery life will be amazing for me since im a minimalist.
Click to expand...
Click to collapse
Nope i don't have the facebook app but i got acdisplay and fleksy which does use the battery. And yes i often use messenger, i think you can have a great time on battery with a light use of the phone
PoloB49 said:
Nope i don't have the facebook app but i got acdisplay and fleksy which does use the battery. And yes i often use messenger, i think you can have a great time on battery with a light use of the phone
Click to expand...
Click to collapse
Yeah. I will wait for proper kernel then uv, uc and make gaming profile shortcuts with tasker then i will get battery and performance when i need it.
If manufactures would be smart they would make profiles available in the statusbar. Just simple battery saving, normal and performance tabs.
Also wishing that the alert slider can be customized. Just realized that it woulf be awesome if the alert slider could handle performance profile.
More than 8 hours 1080p video playback
Hi all,
the german online mag Golem.de states in his review:
- more than 8 hours continuous 1080p video playback with 1 battery charge (for comparison: ZUK Z1 made 9 hours with 4100mAh in same test)
- gets easily over 1 day usage
First day use!
Am i the only one getting such a bad battery life?? Or should i wait to test it again after a few more days??
vinay235 said:
Am i the only one getting such a bad battery life?? Or should i wait to test it again after a few more days??
Click to expand...
Click to collapse
First day use and you're complaining?
Dsteppa said:
First day use and you're complaining?
Click to expand...
Click to collapse
lol yea ur right..will update after a few days then..
vinay235 said:
Am i the only one getting such a bad battery life?? Or should i wait to test it again after a few more days??
Click to expand...
Click to collapse
Try sleeping in a little later. Getting up before 5AM is probably what's killing your battery
interested in getting the device but would like to see the performance of the phone in real life ... battery life would also tell its capabilities
According to this test, the battery life is not bad. But I don't know this site, and i'm not sure it could be trust.
edit : I can't post link. Search for "fonearena oneplus-x-battery-life-test" and you will find it.
I just learned that some laptops include a utility that offers to limit battery charging capacity to within 0–80% in order to slow the attenuation of the battery lifespan.
is this possible on Nexus 6P?
afdals said:
I just learned that some laptops include a utility that offers to limit battery charging capacity to within 0–80% in order to slow the attenuation of the battery lifespan.
is this possible on Nexus 6P?
Click to expand...
Click to collapse
I think you should read here - http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
afdals said:
I just learned that some laptops include a utility that offers to limit battery charging capacity to within 0–80% in order to slow the attenuation of the battery lifespan.
is this possible on Nexus 6P?
Click to expand...
Click to collapse
The charge rate is stepped down after 80 and to a crawl after 90% to prevent the battery from heating up. I think it's the heat that damages the battery and the charge rate regulation probably minimizes the problem.
hutzdani said:
I think you should read here - http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Click to expand...
Click to collapse
Quoting from that document:
Most Li-ions charge to 4.20V/cell and every reduction in peak charge voltage of 0.10V/cell is said to double cycle life. For example, a lithium-ion cell charged to 4.20V/cell typically delivers 300–500 cycles. If charged to only 4.10V/cell, the life can be prolonged to 600–1,000 cycles; 4.00V/cell should deliver 1,200–2,000 and 3.90V/cell 2,400–4,000 cycles.
Click to expand...
Click to collapse
My Nexus 6P charges the cell to 4.40V! If the above can be extrapolated, that would mean that it would have lost 30% capacity after only 100 cycles!
What afdals (and yours truly) would like is a simple mechanism to stop the charging at e.g. 4.10V. That would result in a total capacity loss of about 10%, but an increase in life-span of a factor 8!
I think the question in the OP is well worth asking.
Can software stop the charging, or is it handled by hardware?
Amazing how this is all claimed, yet my nexus 5 has been charged every single day, from empty to full, since its release day... And I still get the EXACT same battery life as I did in the beginning.
Soulfly3 said:
Amazing how this is all claimed, yet my nexus 5 has been charged every single day, from empty to full, since its release day... And I still get the EXACT same battery life as I did in the beginning.
Click to expand...
Click to collapse
Maybe you were just lucky. I saw the capacity of my Nexus 5 battery decrease markedly (although I must admit that I never measured the capacity properly.)
If you read the Battery University article(s) you will find that there is quite a lot of disparity between units.
Consider yourself one of the lucky winners in the lottery that is modern manufacturing!
---------- Post added at 05:22 PM ---------- Previous post was at 05:16 PM ----------
This is probably the most relevant graph from the document:
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But it's not entirely clear what battery chemistry we're talking about here. Is it a standard LiCoO₂ (Lithium Cobalt) battery? Huawei talk about some kind of carbon anode, which allows the battery to charge faster.
Does anyone have any information about this?
So to protect battery life, you want to effectively turn your 6P from having a 3430mAh battery to a 2744mAh battery and have 20% less battery life. Yup, seems legit.
geoff5093 said:
So to protect battery life, you want to effectively turn your 6P from having a 3430mAh battery to a 2744mAh battery and have 20% less battery life. Yup, seems legit.
Click to expand...
Click to collapse
Lol
geoff5093 said:
So to protect battery life, you want to effectively turn your 6P from having a 3430mAh battery to a 2744mAh battery and have 20% less battery life. Yup, seems legit.
Click to expand...
Click to collapse
Or just charge as normal like everyone else in the world, previous phone i have owned still hold their charge fine.
Always user the right turbo/fast charger supplied or use a slow charger 1A if you must get some charge or use a USB port, there is very likley built in protection on your official charger and or computer USB ports that takes into account over voltage or other strange goings on.
its highly likley the phones charging circuit allows the devices to charge to a set level and then trickle charges the rest the same goes fro the other end of the scale a Lithium iron batter does not like to be 100% discharged and causes issues over time and effects the life of the cells.
one would assume the 0% is the point where the charging circuit says OI stop drawing current from the battery im too low.
Typical batterys for such devices have a built in temprature sensor allowing the device to stop charging if the cells temp is above the prescribed limits, the charger that came with your device will have the right charge protection for the handset so you should always try and use the one that came with your device !
most batteries have under/over charge built in from any rereputable manufacture
so in all likleyhood if you where to not use the correct charger the battery would overheat and the temp proble would say im too hot and stop charging there and then untill your inside the limits again, hence leaving your phone on charge all week wont do any percevable damage and all those articles are ball****.
you could always have the protection fail or deliberatly manually charge using the + and - terminals on a lipo charger set to the incorrect values and watch it swell from escaping gasses and eventually catch fire / explode.
geoff5093 said:
So to protect battery life, you want to effectively turn your 6P from having a 3430mAh battery to a 2744mAh battery and have 20% less battery life. Yup, seems legit.
Click to expand...
Click to collapse
YES!
That's exactly what I want!
Instead of being able to draw 200 cycles of 3430mAh, I'd like to be able to draw 800 cycles of 2744mAh. It's a trade-off, but one that I'm willing to make.
I'm tired of buying a new phone (or battery) every year, and I'd like this one to last two years at least.
Popup-ch said:
YES!
That's exactly what I want!
Instead of being able to draw 200 cycles of 3430mAh, I'd like to be able to draw 800 cycles of 2744mAh. It's a trade-off, but one that I'm willing to make.
I'm tired of buying a new phone (or battery) every year, and I'd like this one to last two years at least.
Click to expand...
Click to collapse
Who said you'd only get 200 cycles? How many years do you plan to keep your 6P?
Sent from my Nexus 6P using Tapatalk
geoff5093 said:
Who said you'd only get 200 cycles? How many years do you plan to keep your 6P?
Click to expand...
Click to collapse
Look at Figure 5 in the document referred to above. At 4.35V the capacity is reduced to 50% after 200 cycles. And my Nexu6 6P tends to charge to 4.40V!
(I think 'Battery University' is a reliable source. I don't know much about lithium batteries, but what they say about other battery chemistries rhymes with my understanding thereof.)
Maybe the batteries in the 6P are a slightly different chemistry, but I have been unable to find any specifics about the battery, so I think we can assume that it's a fairly standard LiCoO₂ battery. Huawei talk about a special carbon anode that allows them to charge faster, but I don't think that has any intrinsic relevance to the aging problems.
I kept my Nexus 5 for two years, and would have kept it longer if the battery had lasted longer. It seems to me as if mobile phones are reaching a feature plateau, and I would like to keep my 6P for three years.
Popup-ch said:
Look at Figure 5 in the document referred to above. At 4.35V the capacity is reduced to 50% after 200 cycles. And my Nexu6 6P tends to charge to 4.40V!
(I think 'Battery University' is a reliable source. I don't know much about lithium batteries, but what they say about other battery chemistries rhymes with my understanding thereof.)
Maybe the batteries in the 6P are a slightly different chemistry, but I have been unable to find any specifics about the battery, so I think we can assume that it's a fairly standard LiCoO₂ battery. Huawei talk about a special carbon anode that allows them to charge faster, but I don't think that has any intrinsic relevance to the aging problems.
I kept my Nexus 5 for two years, and would have kept it longer if the battery had lasted longer. It seems to me as if mobile phones are reaching a feature plateau, and I would like to keep my 6P for three years.
Click to expand...
Click to collapse
Looking at the graph I see the battery at 74-84% after 250 cycles, not sure where you see 50% after 200.
Sent from my Nexus 6P using Tapatalk
geoff5093 said:
Looking at the graph I see the battery at 74-84% after 250 cycles, not sure where you see 50% after 200.
Click to expand...
Click to collapse
Maybe we're not looking at the same graph. The one I'm looking at has a green line corresponding to 4.35V, which shows a reduction in capacity from 1050mAh to about 450mAh after approximately 190 cycles.
Popup-ch said:
Maybe we're not looking at the same graph. The one I'm looking at has a green line corresponding to 4.35V, which shows a reduction in capacity from 1050mAh to about 450mAh after approximately 190 cycles.
Click to expand...
Click to collapse
I know this is very good information, but that data is from 2002, I would expect a lot has changed in 14 years in the rechargeable battery space since then.
2002 data set ????
oooo lawd :lol:
geoff5093 said:
I know this is very good information, but that data is from 2002, I would expect a lot has changed in 14 years in the rechargeable battery space since then.
Click to expand...
Click to collapse
Maybe. I'm always interested in better information. The page itself has been constantly updated (last update was last week).
I assume that they would have updated the charts if the underlying data had changed, but battery chemistry is not something that changes every day, even though the way it's used can change relatively quickly.
If you have access to better information - please contribute!
afdals said:
I just learned that some laptops include a utility that offers to limit battery charging capacity to within 0–80% in order to slow the attenuation of the battery lifespan.
is this possible on Nexus 6P?
Click to expand...
Click to collapse
I'd look into the Elemental X Kernel - I haven't used the 6P version, but on the Nexus 5 and 7, Flar implemented a 'battery saver,' which stops the phone from charging at about 93%.
teh roxxorz said:
I'd look into the Elemental X Kernel - I haven't used the 6P version, but on the Nexus 5 and 7, Flar implemented a 'battery saver,' which stops the phone from charging at about 93%.
Click to expand...
Click to collapse
Thank you!
That means that there is an option (at least on N5/7) for software to influence the charging. I was worried that it would be done entirely by hardware.
There is hope!
Popup-ch said:
Thank you!
That means that there is an option (at least on N5/7) for software to influence the charging. I was worried that it would be done entirely by hardware.
There is hope!
Click to expand...
Click to collapse
I'd say it would be in the 6P as well - there'd be no reason for flar2 to remove the feature; the kernel is in the original dev section, if you wish to look at it.