Time until full "charge" time incorrect? - Samsung Galaxy Note 10 Questions & Answers

This is not a complaint or a problem requiring fixing, but some curiosity. Does anyone else's phone lie about how long till full? Last night it said 10 minutes till full at 96%. I looked away for maybe 2 minutes and it was 100% charged. I thought maybe the battery could need to be drained and recalibrated but no, it drained normally. Took like 5-10 minutes of facebook scrolling to go down maybe 1%. Used it down to 35% today at work listening to spotify and playing games on my breaks. This was probably 96%-35% over almost 10 hours, so I don't think I have a battery problem, it just does not display eta of the charge correctly?
The reasoning behind all this is I'm trying to practice good Li-Ion health and not charge it fully. I usually get it to around 95% and unplug it. I don't charge it all night, and give it a boost on the way into work in the car. Im using the PD 2.0 fast charger it came with at home, but a older Samsung fast charger in the car from the S8 era.

Trust the shown percentage and not the time remaining ?
/CK

Related

Slow charging

I have decided to move this post from the issues thread to a dedicated one to give it better visibility. If no one else is getting this problem then I will probably return the device.
I have the excellent "devstate" today plugin application installed which gives the battery charge level in 1% steps. When I say slow, it takes around 3 mins to increase by 1% which means it will take 4 hours for 80% charge (too long) when this is the case, the back doesn't heat up.
I have seen it charge much faster on one occasion i.e. around 1% a minute and the back was warming up (this is logical if more current is flowing) I was wondering the cause of the slow charge is that the device thinks it is connected to a pc and the charging current is limited. Also when you plug the cable sometimes the menu pops up asking whether you want to enter activesync/disk drive mode but doesn't on other occasions. There doesn't seem to be any pattern to it.
Another observation is that a soft reeboot occasionaly gives wildly varying battery levels for example before reboot the charge might be 100% and straight after the reboot 90%, or 83% before and 100% after. Interestingly before turning on the device for the first time I fully charged the battery, but up on boot up it was reporting 60%! (maybe it didn't charge at all when it was switched off and 60% was the initial amount of charge the battery came with) Have I got a duff battery or some issue with the device itself?
I seems like the battery charges fast up to 75% at around 1% a minute but then slows down to 1% every 3 to 4 minutes. Maybe this is the charging profile for this battery. Has anyone else noticed this?
Here are a couple of threads from the diamond section regarding the sort of issues I am experiencing but there doesn't seem to be a conclusive fix.
http://forum.xda-developers.com/showthread.php?t=406230&highlight=slow+charging
http://forum.xda-developers.com/showthread.php?t=401945&highlight=charging
Could people please answer the following questions to help me decide whether I have a faulty device/battery or some ROM issue which all of us have. I have the stock UK touch pro ROM 1.90.405.1 WWE.
1) If you fully charged the battery before powering on for the first time, what was you battery charge level immediately after power on?
2) Have you noticed fluctuating charging rates?
3) Soft reboot gives different battery charge levels.
Just a quick Q, which charger are you using? Can you just post the amp / volt data printed onto it for us?
I am using the one that came with the touch pro, model no TC P300, its output rating is 5V at 1A. Input rating 100-240V
I have also tried the mda vario III charger and I get similar results i.e. fast charge up to 75% then slow afterwards.
As i stated in the other tread with the "Raphael issues" i have the same problem.
When i use the shiny new charger with the "usb-mini usb" cable i takes 7-8 hours to completely charge the device. (output is 5V-1A)
However, when i use my good old Hermes charger, or any other 5V-1A charger, it goes to 100% in about 3 hours.
Mine charges up to 90% from 10% in less than 3 hours after which it stays @ 90% (According to the built in battery meter of the device) forever. Is it a faulty battery or its supposed to be like that?
WDawn said:
As i stated in the other tread with the "Raphael issues" i have the same problem.
When i use the shiny new charger with the "usb-mini usb" cable i takes 7-8 hours to completely charge the device. (output is 5V-1A)
However, when i use my good old Hermes charger, or any other 5V-1A charger, it goes to 100% in about 3 hours.
Click to expand...
Click to collapse
And do you get varying battery levels on soft reboot?
3 hours is probably what I would get i.e. "75% at 1% a minute = 75 mins" PLUS "25% at 1% every 4 mins = 100 mins" giving a total of 175 mins.
question is that is this behaviour normal for touch pro or only present on
some device/battery/chargers.
I also have another issue, this time regarding interference on speaker, see this thread:
http://forum.xda-developers.com/showthread.php?t=419761
If only my touch pro has these faults then I want to replace it asap, especially when having paid £500 for it.
billu said:
And do you get varying battery levels on soft reboot?
3 hours is probably what I would get i.e. "75% at 1% a minute = 75 mins" PLUS "25% at 1% every 4 mins = 100 mins" giving a total of 175 mins.
question is that is this behaviour normal for touch pro or only present on
some device/battery/chargers.
I also have another issue, this time regarding interference on speaker, see this thread:
http://forum.xda-developers.com/showthread.php?t=419761
If only my touch pro has these faults then I want to replace it asap, especially when having paid £500 for it.
Click to expand...
Click to collapse
Yes i do get varying levels on reboot, but i got that with my Hermes and Magician too. So i wouldn't worry about it. Usually when you softreset while it's charging you get a higher battery reading then you should have, but it wil drop after some time to it's real level.
WDawn said:
Yes i do get varying levels on reboot, but i got that with my Hermes and Magician too. So i wouldn't worry about it. Usually when you softreset while it's charging you get a higher battery reading then you should have, but it wil drop after some time to it's real level.
Click to expand...
Click to collapse
This happens when its not charging. I don't get this with the vario III. Maybe it is ROM dependant. The other concern was after having charged the device fully when switched off, it reported 60% on power up. I might let the battery drain to a low level then charge when switched off to see whether it charges at all. Some diamond owners were also reporting this.
Hmm, got the same thing tonight with my Hermes charger, has been charging for 6 hours and still not fully charged, now at about 80%. Very strange. Are there more people experiencing this?
billu said:
Another observation is that a soft reeboot occasionaly gives wildly varying battery levels for example before reboot the charge might be 100% and straight after the reboot 90%, or 83% before and 100% after. Interestingly before turning on the device for the first time I fully charged the battery, but up on boot up it was reporting 60%! (maybe it didn't charge at all when it was switched off and 60% was the initial amount of charge the battery came with) Have I got a duff battery or some issue with the device itself?
Click to expand...
Click to collapse
This didn't appear to happen to me on the first charge, but I turned it on immediately after putting the battery and SIM in place, and then I charged (I don't remember what the initial battery charge was). I've not noticed such wildly inaccurate readings after reboot either. I haven't specifically checked for inaccuracy in the battery meter, but I would (probably) have noticed such a big difference.
Have you tried to do a full discharge and charge cycle? This is necessary after around every 30th charge to recalibrate the gauge so that it is as accurate as possible. I know yours probably haven't gone through 30 charges yet, but it may be worth trying.
billu said:
I seems like the battery charges fast up to 75% at around 1% a minute but then slows down to 1% every 3 to 4 minutes. Maybe this is the charging profile for this battery. Has anyone else noticed this?
Click to expand...
Click to collapse
This is normal for lithium-ion batteries. The last 20% or so can take as long as the first 80% to charge.
Sources:
- Lithium-ion battery (Wikipedia)
- Charging lithium-ion batteries (batteryuniversity.com)
- Lithium-ion Batteries (Apple.com)
billu said:
I have the stock UK touch pro ROM 1.90.405.1 WWE.
Click to expand...
Click to collapse
Same as mine.
WDawn said:
Hmm, got the same thing tonight with my Hermes charger, has been charging for 6 hours and still not fully charged, now at about 80%. Very strange. Are there more people experiencing this?
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Click to collapse
When charging I usually leave mine overnight, so I think I've only charged it once during the day, and then I think this was through USB while connected to the PC so it may have been a bit longer than 'normal' (3-4 hours) for that reason. I'll keep an eye at it next time I do it during the day.
Six hours plus sounds far too long though, do you have a chance of trying the battery in another device, or another battery in your device?
Incarniac said:
Six hours plus sounds far too long though, do you have a chance of trying the battery in another device, or another battery in your device?
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Click to collapse
Nope, don't have a second Touch Pro around here, but this is really annoying, I need a fully charged battery in the morning. If this is hardware related i'd return it to get a replacement.
hmm, this is interesting.....so just to clarify we are seeing slower charging with the bundled adapter: which is essentially an AC to USB power transformer?? If the USB port on that (yes i know its power only) is capable of supplying only a standard ammount of juice then your battery may charge to 100% as slowly as from a pc or car charger..
..id like to perhaps see if i can meter the current and voltage coming from it but would need me to cobble together a breadboard with the relevent power points.
Is the hermes / kaiser charger charging it fully in less time?? (to clarify)
Incarniac said:
Have you tried to do a full discharge and charge cycle? This is necessary after around every 30th charge to recalibrate the gauge so that it is as accurate as possible. I know yours probably haven't gone through 30 charges yet, but it may be worth trying.
Click to expand...
Click to collapse
Yes I drained the battery till the phone switched off by itself but still have this problem. I suspect there is a problem either with the phone itself or the battery as supposed to a ROM issue. I thought all the clever charging circuit is in the battery these days and it's the battery which reports it's charge level to the device too. If this is true then probably the battery is faulty but I am not going to buy another one just to find out. I'll try to get a replacement for the touch pro tomorrow when the shops open.
billu said:
I thought all the clever charging circuit is in the battery these days and it's the battery which reports it's charge level to the device too.
Click to expand...
Click to collapse
It is, but even so the gauge (in the battery) needs recalibration once in a while, hence the full discharge/charge cycle every 30th charge or so (other than that it is recommended to charge li-ion batteries often, and not deplete them fully).
Your next port of call is probably to see if another battery makes a difference.
WDawn said:
Nope, don't have a second Touch Pro around here, but this is really annoying, I need a fully charged battery in the morning. If this is hardware related i'd return it to get a replacement.
Click to expand...
Click to collapse
Today I charged my phone from empty to full while connected to the PC, which took around 3 hours 30 minutes (phone not used except to check charge levels towards the end).
the charging cycle on mine has been a little erratic too.
I put it on charge at 9pm last night, at 6.30 this morning it was at 88%. 9 hours and not fully charged!!...still, 3 hours later and it's on 87%. so I think its more a case of requiring a few charge/discharge cycels to settle the guage down a bit.
This night it fully charged in 5 hours. While yesterday it wasn't completely charged in over 8 hours. There doesn't seem to be a pattern in this.
Yesterday it was showing 48% battery level at one time, a soft reset later 28%, another soft reset and it was 24%. Today I have sent it back for a replacement. Can those people affected by this issue please state where they bought it from, in order to figure out whether it might be a faulty batch. I bought mine from clove technology in the UK.
billu said:
Yesterday it was showing 48% battery level at one time, a soft reset later 28%, another soft reset and it was 24%. Today I have sent it back for a replacement. Can those people affected by this issue please state where they bought it from, in order to figure out whether it might be a faulty batch. I bought mine from clove technology in the UK.
Click to expand...
Click to collapse
Mine came from Expansys.be, please let us know your new unit has the same behaviour.
Will do if I get a replacement one, they have satisfy themselves that there is fault first. Will probably take around 3 days. I miss my touch pro already.....
Oh well back to the vario III for the time being, seems cumbersome already in comparison.
Hermes Charger
mrvanx said:
Is the hermes / kaiser charger charging it fully in less time?? (to clarify)
Click to expand...
Click to collapse
Whilst I don't have any exact figures to hand, my hermes charger took about 45 mins (Give or take a little.)
I've been using the standard Raphael charger today and charged from 50% and it's still going after 1 hour 20 mins and only at 90%
I know the final 80% takes a lot longer, but even so.....

battery charging with JF ADP 1.5

Is anyone else experiencing a problem with battery charging on JF's ADP 1.5 release?
I've got this issue where I plug my phone in to the wall charger at night and it's on a cheap lamp timer so that it doesn't start to charge until 1.25 hours before I leave for work to prevent overcharging. Since I updated to 1.5 it seems that when the phone is On and starts the wall charge it treats it like a trickle charge as if it were connected via USB to a computer. Only after I turn the phone off does it rapidly charge like it should via the wall charger. Its a little annoying since the first day after the 1.5 update I didn't notice it and went in to work with a half charged battery. Now I know to look out for it and go turn the phone off when I wake up and by the time I'm ready to leave for work it's fully charged.
Tim
Wait, so does G1 have overcharge protection or doesn't it??
I didn't think it was necessary to protect from overcharging either.
I don't see this problem with my JF1.5 though - I plug it in at night and it charges full for when I wake up the next morning.
Dimath said:
Wait, so does G1 have overcharge protection or doesn't it??
Click to expand...
Click to collapse
it should as that is very simple technology and is standard in many cheap devices now, so my guess is it would be in g1 or there would be a heck of alot more problems.........
on another note....ive noticed with JF 1.5 my battery icon gets a little stuck.....i thought it was an improvement of battery life until yesterday it stayed at 100% for like 5 hours but then dropped to 80% out of no where when i installed an app.......is anyone else having this issue??
I use battery graph from the market to see my battery charge over time. That's how I know that it "trickle" charges for me when connected to the wall charger until I turn the phone off.
BTW, when I turn the phone off then back on after waking up it does rapidly charge properly as well. Seems like it just needs a reboot for it to work right.
...and I'm sure that the G1 does have built-in overcharge protection, I just don't really trust it to do as good of a job as my cheap lamp timer does
Turn off your phone, remove you batter, put it back in, and turn your phone on. Everything should reset and be back to normal.
will try tonight.
no problem the power indicator or measurer is just more accurate in the 1.5 builds
i agree, used to fully charge in about an hour and a half, now its been takeing about 4 hours to hit 100% from about 1/2 charge...
ive noticed the same thing.
My phone charges fine with both my regular G1 battery and my Seidio Extended 2600mAh battery since my upgrade to JF ADP V1.50.
mine is on the trickle charge bug as well. phone stays cold throughout the 2 hours i've had it plugged in and its only at 68% charge. Brought it down to around 30% charge when I plugged it in to the wall.
My phone had the same problem when i updated to any of the 1.5 builds w/ radio. today, i drained the battery all the way until the phone died and took the battery out for about a min. Put it back in and started charging. My phone went back to charging normally up to 100% within ~2.5hrs. I've still yet to see how long this full battery will last until later today. Normally, i would get up to 2 days easy w/out charging on normal usage (a text or 5 min phone call here and there), 2G only, wifi disabled, bluetooth disabled. I'll let you guys know how it goes later.
This problem happens when the G1 is offline (airplane mode). When its online there is no problem with charging
mine has been acting weird since going to jf 1.5
last night i plugged it in at like 33% charged, and like 3 hours later it was at like 65%
i unplugged it, turned it off. turned it back on and when i plugged it in it was 100%.
before i charged it (when it was at 33%) i yanked the battery for a few seconds then put it back in then started to charge.
i'm going to do what JDMr2 did and let it die, yank the battery for a min then charge it and see how it goes.
It's always been charging more slowly on Cupcake than 1.x, BUT the battery lasts much, much longer.
well I took the battery out for a minute then put it back in. I left the phone on at night and plugged in the wall charger that's on my lamp timer before going to sleep. I woke up in the morning and looked at it in battery grapher and noticed that it rapidly charged from 30% until 60% then began to trickle charge the rest of the way up to 72% when I looked at the graph. I rebooted the phone, plugged it back in to the wall charger and it rapidly charged the rest of the way to 100%.
So, taking the battery out did not solve it. But interestingly I did discover that it rapidly charges until 60% then it switched into trickle charge mode. This is only after one observation however.
I've been having this problem as well but even prior to JF's version. I originally upgraded to the stock 1.5 from HTC (radio then firmware) and noticed the very slow charge times. I've tried pulling the battery and restarting but that hasnt changed anything. In the process now of completely draining the unit and then going to try again from there.
My G1 charges like normal.
JF1.5 ADP.
JF 1.5 nothing else fancy and I have noticed that charging has went from 45 mins or so to hours. Last night from amber it took 5 or so hours to go green. They definitely changed how the phone charges. Now my battery info says 73% and it has been moderately used for 7 hours. Looks like they went in a positive direction.

Hot after overnight charge (not wireless)

HI everyone, for the second day I noticed that after I left my N5 to charge overnight it was fairly hot after I took it off the charger. I have been leaving it to charge overnight for months and normally its not even warm since it trickle chargers after hitting 100%. My Nexus was charging right next to it and it was cool when I took that off the charger. It did fully charge and I checked if the phone was maybe not sleeping the entire night but that wasn't the case either. I checked with Current Widget and it was showing that even at 100% it was still taking around 200 mAh power. Usually it shows very minimal charge at 100%. Has this happened to anyone? I know I've read this happening with wireless chargers where it the phone wouldn't even charge, but in this case the phone was charged and it was just using the stock charger.
It also seems like I'm getting the Android OS bug after taking it off the charger. I suppose this might the cause of the entire thing. I'm just worried that it happened two days in a row.
The phone continues charging passed 100%. First it will still show 450mA eventually dropping to 200mA or so as you saw. Eventually true 100% is reached and the battery starts draining 0-10mA while the AC provides the rest.
Sent from my Nexus 5 using Tapatalk
bblzd said:
The phone continues charging passed 100%. First it will still show 450mA eventually dropping to 200mA or so as you saw. Eventually true 100% is reached and the battery starts draining 0-10mA while the AC provides the rest.
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
Thanks, that's what should happen. But it seemed the past two nights it never dropped to 0-10 mah. Which is why I think it was hot in the morning. I just charged it from about 70% to 100% and it did trickle charge this time, so hopefully the issue is solved now. Has this happened to anyone though?

New Xperia Z5 doesn't fully charge to 100%

I got a new Z5 yesterday and since then I've been playing around with it and I'm happy so far. Only issue is the battery level doesn't fully charge to 100 after an extended period of charging. Mostly it gets stuck at 97 or 98. I managed to make it reach 100 by turning it off and charging it while it was powered off. Is this normal? I've read that it's some sort of protection from overcharging. Really strange way to do it, though.
I charge mine overnight and it's always been on 100 in the morning
Are you using the supplied charger ?
Mine seems to take an age to go from 97% upwards... upto that point its as you expect, but like above i charge mine overnight and its always 100% in the morning...
wakers said:
Are you using the supplied charger ?
Mine seems to take an age to go from 97% upwards... upto that point its as you expect, but like above i charge mine overnight and its always 100% in the morning...
Click to expand...
Click to collapse
yeah I am. guess this is what I need to do. I was waiting for it to climb to 100 so that might have made the time seem longer
I think from my limited experience it does seem to take longer to charge that last 5%, last night it ran out after about 10min it was up to 12% this morning because it ran out last night i charged it up before i came to work and seemed to take an age to go from 97% to 100% talking 15min plus... edit just to add i didn't use the sony charger this morning i used a charging station we have in the kitchen so that might have something to do with it also...
wakers said:
I think from my limited experience it does seem to take longer to charge that last 5%, last night it ran out after about 10min it was up to 12% this morning because it ran out last night i charged it up before i came to work and seemed to take an age to go from 97% to 100% talking 15min plus... edit just to add i didn't use the sony charger this morning i used a charging station we have in the kitchen so that might have something to do with it also...
Click to expand...
Click to collapse
Yeah you are right the last 3-5% are long to charge
Tip. Never go down 15-20% it is better to keep your battery life
Sent from my E6653 using XDA Free mobile app

Question Poll: do you use the 85% charge limit?

Do you use the 85% charge limit?
i personally think that 85% is BS i have had god knows how many phone all charged to 100% every single night and ZERO! issue. and limiting this phone specially to 85 is a big cut in the hours you will get.
Not a chance. I'd hate this phone if it only charged to 85%.
I Use it all the time. 85% is enough Juice for one workday and i simple want the battery to last as long as possible. I have had bad experience with batteries dying after ~3 years.
The 85% Rule is no BS. You also have to keep an eye on minimal SOC and never go under 10% to avoid unnecessary battery degradation. With that your battery will perform according to the specs (~700 cycles until 80% SOH, modern smartphone batteries). Otherwise it will suffer and that reduces cycle life. This is simply the state of current lithium battery tech.
From my pov, a full day usage requires 100% of charge because some of them cannot charge the phone while they are outside the whole day.
I have wireless chargers almost everywhere, so when my phone is not being used it's normally sitting on a charger. That means that it very rarely uses much charge, so charging to 85% is fine by me. If I knew that I was going to be away from a charger for a protracted period, then I'd probably charge to 100% beforehand.
I can't get too excited about battery management. If I need to buy a new battery for my phone at some point in the future (it has never happened yet...) then that's what I'll do.
i use 85% because i have quick carger in my car and it charge all the time.
at home I have wireless charger and when i need i put it.
I tried it for a few weeks and instead of having 80% leaving work I was at 50%, not really worth it since I'll probably have a new phone in six months. It was too much of a headache stressing about battery life without the phone fully charging.
No, I charged to 100%.

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