I thought the charge time would be long. This morning in class my battery dipped down to 12% as the class was wrapping up. I got back home around between (9:50 and 10am) and started charging my note 2014 while it was powered off. In ~2.5 hours I'm around 55-60%. Personally I don't think this is too bad at all.
What have your experiences been like so far?
Update. I just unplugged it and I'm at 91%. This thing charges much faster than I thought. What were the conditions in which reviewers said it was 7+ hours?
Update: I'm also interested in how long the charge tends to last for you.
mine was ~2.25 hrs from 20% to 80% then ~1.5hrs for 80%100%. the fast charge cycle is pretty decent, it's that last 20% trickle that can feel like it's dragging on. bmw pro says 4:14 for a full 0-100% charge which seems to be in line with my results.
I put mine on the charger at 5% before going to bed. When I got up 5 hours later it was fully charged. Not sure when it reached full charge but definitely less than 5 hours.
From 5% to 100% in 4hours en 45 minutes.At 5% screen on time of 7 hours en 24 minutes!
madsquabbles said:
mine was ~2.25 hrs from 20% to 80% then ~1.5hrs for 80%100%. the fast charge cycle is pretty decent, it's that last 20% trickle that can feel like it's dragging on. bmw pro says 4:14 for a full 0-100% charge which seems to be in line with my results.
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This occurs with mine as well. It's that 80-100% that takes a while but when I charge it anywhere before that it's pretty fast. Probably helps with the long term battery life. Which I'm fine with.
I'm thinking that review got a bad battery. This happened with my first GN10.1 when it took forever to charge after using it the first weekend.
I swapped it out and the new one charged fairly quickly (considering). This new tablet seems to be just a little longer to charge but not 7 hours.
This has been about my experience too. I was really worried before because a lot of reviews said this tablet takes forever to charge to full. Glad to see that smart-charging mitigates this almost completely since an 80% charge easily gets me through a full day of moderate use.
Mine has been 4.5-5 hours, which is AWESOME!
People expect it to charge as fast as their phone need to realize the battery is much larger! I have had the same experience with a new, bad battery taking longer to charge as well though.
The 1st picture attached is my charge time for one night so far. Using the System Monitor app. Really digging that app. You can even have floating windows that stay on top as you run things.
Sent from my SM-P600 using xda app-developers app
my charge times are about 4 hours from 5% to 100 with screen on and energy saver, with it off, i go from 5% to 1005 in about 3 hours
As pleasant a surprise the charge time was I must admit that the charge tends to go pretty quickly. I'll post back with specifics when I get a chance to properly mark the times and usage.
Related
I recharged my Galaxy Tab 10.1 yesterday from a 15% remaining charge.
I powered it off and used the wall charger. It took almost 6 hours to charge to 100%!
Is this normal or is there something wrong with the battery?
Thanks!
Mine was slow at first too. But now seems to have gotten quicker.
luigig said:
I recharged my Galaxy Tab 10.1 yesterday from a 15% remaining charge.
I powered it off and used the wall charger. It took almost 6 hours to charge to 100%!
Is this normal or is there something wrong with the battery?
Thanks!
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What is the rating on the charger that comes with the unit?
The rating is 5V - 2A
Yep, noticed it took about 3 hrs to go 40% charging. Not sure why there is such a drastic difference from the Xoom which could charge from 10% to full in little over an hour with similar drain to GT.
Sent from my PC36100 using XDA Premium App
Ravynmagi said:
Mine was slow at first too. But now seems to have gotten quicker.
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Can you please quantify what quicker means?
We have a rather large battery in the device, while I agree 6 hours is abit much, it should be quicker at 2 amps.
On the other hand, I sit in on the charger at night before I go to bed. I am definately a heavy user as well, and the battery lasts me all day with atleast 30 to 40% left over by bed time (this includes a 1.5 hour commute each direction using Waze, the GPS, and wifi tethered to my phone, 2 gmail accounts polling every 15 min, web surfing throughout the day, and playing games during my morning and afternoon constitutions .. I know.. too much info)..
So I can live with a longer charge time, at least for now..
I charged my GT Tab completely before using it the first time. Then I drained it down to about 9%. I timed my first full charge from 9% to 100%, it took exactly 6 hours and 4 min. My Xoom charged in half the time. I am hoping it gets better like I have heard from different people.
dsEVOlve said:
Yep, noticed it took about 3 hrs to go 40% charging. Not sure why there is such a drastic difference from the Xoom which could charge from 10% to full in little over an hour with similar drain to GT.
Sent from my PC36100 using XDA Premium App
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i believe the xoom's charger is 16watts or more. i can't really remember, but it's got the highest rated charger b/t the xoom, tf, and gt10.1.
I think that's just wishful thinking on their part. How does a battery suddenly learn to charge itself faster. You make it sound like the battery is a muscle you can work out. The thing takes forever to charge but it also has excellent battery life. So as long as you don't find yourself in a hurry to travel without time to charge the battery should last you almost all day.
Sent from my PC36100 using XDA Premium App
I charged the device fully before use. Used it down to 10%, plugged it in and charged to full powered off. This took around 6 hours. The second time I charged it from around 14-15% It took about 4 hours. I have charged it twice more since from almost zero, and it's taking about two hours.
Remember the math:
7000 mAh battery
2000 mAh charger
That means from drain to full if the screen is off, about 3-4 hours. If you have the screen or device on and it's doing anything, it's using some of that incoming charge, so will increase to 4, 5, 6 or more hours to fully charge.
Gets even worse if using an aftermarket charger, say a 800 mah or 1000 mah charger like the iPhone or Kindle charger...can then take 10-14 hours to fully charge, hehe.
It's funny how people say it charges quicker after a while, when that's not logical, you just don't notice it as much going from 65% to 100% as you noticed when it went from 15% to 100% the first time, hehe
tycon said:
I charged the device fully before use. Used it down to 10%, plugged it in and charged to full powered off. This took around 6 hours. The second time I charged it from around 14-15% It took about 4 hours. I have charged it twice more since from almost zero, and it's taking about two hours.
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The xoom charges super fast, like from almost zero to full in around 2 hours. That's about all i miss right now
Sent from my PC36100 using XDA Premium App
jvs60 said:
The xoom charges super fast, like from almost zero to full in around 2 hours. That's about all i miss right now
Sent from my PC36100 using XDA Premium App
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Smaller battery=shorter charge, a 2 gallon gas tank is quick to charge too, hehe.... kidding.
But seriously, Samsung is bad with their charging. My Samsung Infuse and my Galaxy tab both take forever to charge.
tycon said:
I charged the device fully before use. Used it down to 10%, plugged it in and charged to full powered off. This took around 6 hours. The second time I charged it from around 14-15% It took about 4 hours. I have charged it twice more since from almost zero, and it's taking about two hours.
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Did I read it correctly that if recharged from almost 0 (e.g. <5%?), it takes only 2 hours to go to 100%? This seems counter intuitive.
luigig said:
Did I read it correctly that if recharged from almost 0 (e.g. <5%?), it takes only 2 hours to go to 100%? This seems counter intuitive.
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Click to collapse
I think someone has a bad battery
verusevo said:
I think that's just wishful thinking on their part. How does a battery suddenly learn to charge itself faster. You make it sound like the battery is a muscle you can work out. The thing takes forever to charge but it also has excellent battery life. So as long as you don't find yourself in a hurry to travel without time to charge the battery should last you almost all day.
Sent from my PC36100 using XDA Premium App
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Click to collapse
i think what happens is that as the battery calibration gets more accurate it finds where to quick charge and where to trickle in the appropriate levels.
I have had it plugged into the mains, running tunein radio through wifi and its gone from 85% to 86% in one hour.
If I charge from 10% with phone off it takes about 4 hours to fully charge
If I charge from 10% with my phone on running stuff, it actually never gets to fully charges by the time I finish work...at 6pm
Sorry to keep comparing to the dreaded FruitPhone, but that would charge whilst running wifi and tunein from 10% to 100% in about 2 hours.
I am beginning to think my SGS2 is faulty
i am fiding it takes about 3 hours to charge from empty . It does take a long time indeed but i guess it is what we have to do for a 1650mah battery
3 hours from empty with stock charger .
jje
it might well be a 1650 battery, but it starts to get unusable when it takes all day to charge then a few hours to loose it all.
This phone is the greatest but the battery life just completely destroys it, I am beginning to think I made the wrong choice
JJEgan said:
3 hours from empty with stock charger .
jje
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Is that while using it?
you are not supposed to use the phone when its charging its really bad for the battery it gets very warm during charging as it is...
virussnake said:
you are not supposed to use the phone when its charging its really bad for the battery it gets very warm during charging as it is...
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Aye... if I don't the bloomin thing would be dead by lunchtime, and I listen to music.
So I basically have to turn it off not use it so I can charge it, how crap is that, owned my iphone a year never had any problems with battery and I always used and charged in its dock.
The desire had slow charging too but snq- fixed this in his kernels maybe we can port his fix to our kernels
btw it's true li-ion batteries degrade quicky when the heat up (or completely charge or discharge)
From 30% it took me one hour and a half to fully charge..
I recommend to download battery mix as it takes very good statistic on the battery life and one can tell exactly how long it takes to charge and discharge
Sent from my GT-I9100 using XDA App
just for the record all Lion batteries in phones never fully discharge or recharge, as there balanced by a balancing chip.
when you get to the likes of 0% you actually have 20% charge, thats why you can power on the phone but it will immediately switch off again. like wise, charging you never reach 100%, it's more like 89%, again because of how Lion works.
if you fully discharged and fully recharged, well put it simply you'd have a lot of exploding phones, fire and chemical burns...
Interesting!
My phone charges in about 2,5 - 3 hours, so should be normal...
But charging with the usb cable connected to the pc it takes much longer.
Any of you experience the same thing?
greets!
THUDUK said:
I have had it plugged into the mains, running tunein radio through wifi and its gone from 85% to 86% in one hour.
If I charge from 10% with phone off it takes about 4 hours to fully charge
If I charge from 10% with my phone on running stuff, it actually never gets to fully charges by the time I finish work...at 6pm
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Click to collapse
Because:
a) That´s how Li-Ion-batteries are charged. To fully charge a Li-Ion-battery you need 3-4h.
b) The power-supply is pretty weak. It is just enough to charge the phone at decent speed, but it is not enough to charge it and intensely use it the same time. In this case much of the power is used by the phone and there is not enough left to do a proper charging. I use a 1,2A power-supply from my old Nokia, and while it won´t speed up charging itself, at least it slows down less when I´m using the phone while charging.
Sorry to keep comparing to the dreaded FruitPhone, but that would charge whilst running wifi and tunein from 10% to 100% in about 2 hours.
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Click to collapse
This is not possible. The mighty fruity-phone may tell you it is 100% charged, but certainly it isn´t
You can charge a Li-Ion-battery very fast from 0 to 70-85% you could reach this in 1h. But you have to charge the remaining 15-30% very slowly, otherwise the voltage would raise too much and destroy your battery.
The so called saturation-stage (the charging-stage until 100%) takes longer the faster you charged at the beginning. If you really charged until the saturation-stage in 1h, the saturation-stage will take 2-3h.
If you charge slower, so you reach saturation-stage after 2h, the saturation-stage will only take 1-2h anymore.
In the end it will always take 3-4h to fully charge a Li-Ion-cell, regardless how strong your power-supply is.
Another few notes:
Charging will get slower the fuller the battery already is.
Using the phone with low battery-percentage will lengthen the charging-time quite a bit, a stronger power-supply could help.
Getting the last 20% in a Li-Ion-cell will always be very slow, usage of the phone won´t influence this a lot, and a stronger power-supply can´t help.
It doesn´t matter much, how much charge is left in the battery, to fully charge it it will always take long, as you spend most of the time in the saturation-stage (the higher the left percentage is, the more time you spent in saturation-stage)
I am beginning to think my SGS2 is faulty
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It is not faulty, it is designed this way.
It took 3 hours 10 minutes to fully charge my dog and bone yesterday whilst off
Thanks for the explanation!
jonny68 said:
It took 3 hours 10 minutes to fully charge my dog and bone yesterday whilst off
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Your having a bubble bath ain't you mate
Your battery sounds faulty to me, taking over 4 hours and only charging 1 percent in an hour. Try the battery calibration app in the market, if it doesn't improve get it swapped mate
[email protected]
Sent from my Samsung Galactic Crusader S II
The wifi is the killer, try turning it off when charging your phone..
Sent from my GT-I9100 using XDA App
it takes so long to charge because samsung capped the charge current at 650 mA in the battery driver. but other phones like HTC allow charging at the full 1 amp. so that's why its a slow charge, and why its possible to drain the battery even while plugged in to the charger.
Now who wants to ask kernel developers to increase that to .850 or 1 amp and use that lol.
I believe lack of heatsink due to design is the culprit behind decision to cap it at .650.
Sent from my GT-I9100
3 hrs to fully charge, and as i use tunein radio a lot i can tell you on my device with the screen off, wifi on with tunein running, it still seems to take no more than 3 hours maybe 15 mins more at most
I am probably going to order a cheap eBay Li-Ion battery that's 1800mAH and likely has a charge cap closer to 1000mAH. I will know in a week when I finally get my phone and report back if that battery helps. I expect it to heat up while charging and am going to use an external charger.
Two replacement batteries and an external charger go for about $12 USD on eBay btw.
Is it just me, or does this bad boy take all day to charge? The transformer only outputs like 1.2amps. I've only gone from 45% to 77% in like 4 or 5 hours. It's sooo slow
Mine takes a really long time too, though I haven't measured it yet. I just plug it in at night when I go to sleep and it's done in the morning. The battery lasts me all day.
Is there a reason you need to charge it while you're awake? This thing lasts 5-8 hours easily; surely you aren't on it that much!
gravis86 said:
Mine takes a really long time too, though I haven't measured it yet. I just plug it in at night when I go to sleep and it's done in the morning. The battery lasts me all day.
Is there a reason you need to charge it while you're awake? This thing lasts 5-8 hours easily; surely you aren't on it that much!
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From experiment, it looks like taking one hour to charge 10%. So total time for full charge is about 10 hours. I used the nexus 7 charger and it took about 16 hours!
No problems charging here, I just charge overnight
Sent from my Nexus 10 using xda app-developers app
Mine also charges very slowly. Discharges when on charge if you're using it (depending on what you're doing of course).
Hello Experts,
I received a new nexus 4 and noticed that it takes around 3.5 to 4 hrs for complete charging from 5% to 100%.... is it normal? my other sony xperia seems to be charge in about 1..5 hr
since i am new to Nexus 4, not sure what is the avg charge time and should i call for RMA? Please let me know what is the avg time for charging.
thx
Ganu
Perfectly normal. You want a nice slow steady charge, especially in a sealed phone. The battery needs to last as long as possible. Fast charging batteries significantly reduces their lifespan. My old Nexus S takes the same amount of time to charge from 5%.. 3-4hrs or so give or take.. I still have the two year old original battery and it holds a charge just as well as it did the day I bought it. Meanwhile my 15 minute charge AA batteries I bought last year lose their charge in a week just sitting on the desk.
Mine is just about the same, but that's under use. If I don't touch the phone, it typically charges to 100% in about an hour.
And if it's through USB.. um.. more like 8 hours to fully charge.
Battery widget reborn (awesome app btw) says my phone usually charges in about 2.5 hours. This is on Qi though not sure about the regular wall charger.
2-2.5 hours for me on usb wall charger and Qi Orb.
midnightmach said:
Battery widget reborn (awesome app btw) says my phone usually charges in about 2.5 hours. This is on Qi though not sure about the regular wall charger.
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Click to collapse
I concur.
Sent by carrier pigeon
From 2 hr 45 min (from around 12-15% juice left), my charge time has reached to 3 hr 30 mins now (i.e. from 1% juice left)... 14% juice wouldn't make such a huge difference so don't really know why it increased..
filthykid said:
From 2 hr 45 min (from around 12-15% juice left), my charge time has reached to 3 hr 30 mins now (i.e. from 1% juice left)... 14% juice wouldn't make such a huge difference so don't really know why it increased..
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yes, this is one of the reasons i started this thread to understand what everyone is experiencing.... i called up the google customer support and they are ready to send in a RMA as it appears to be a higher side...
so let me know your thoughts guys...should 3.5 hrs charge time considered high and warrant a RMA? share your thoughts.
^ Hmmm.. I doubt if this would mean anything serious or worth RMA-ing. I can but I won't RMA my device because it's been exceptional so far. I am fairly happy with it and wouldn't want to get it replaced with a defected one.
Its perfectly normal especially from around 5% to 100%.. In my experience if you dont let it get below 20% it usually charges faster. I wouldnt RMA it especially if your phone is perfectly fine in other aspects.
I tried with a different charger yesterday and it took similar time. The charger has same voltage input levels.
You charge 3 hours, for only double the lifetime. How pathetic, actually. I didn't thought that the battery life would be that bad. I can hardly make trough 1 day, if I play some games, make some calls, and use a little bit of internet. On the last charge I got 4Hours of screen on time with 15% left.
Gosh, at least it's fun to use it. :/
Hi.
When i go to sleep after a normal day my battery is around 60%
Yesterday it was only 85% after a full day of usage.
I sleep around 4 - 5 hours at night. That is how long i charge my phone, its allways charging when i sleep.
But is it bad if my phone is charging for so long even if my battery was not complete empty ?
Racinghart91 said:
Hi.
When i go to sleep after a normal day my battery is around 60%
Yesterday it was only 85% after a full day of usage.
I sleep around 4 - 5 hours at night. That is how long i charge my phone, its allways charging when i sleep.
But is it bad if my phone is charging for so long even if my battery was not complete empty ?
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Click to collapse
wow. That's great battery. I also usually charge my phone overnight, but I have <10% when I charged it.
I think it will damage the battery somehow, but I can't confirm this, many people have better battery knowledge rather than me, so just wait them to answer it.
But I wanna give suggestions, if your full day use is just consume max 40% batt, just put it in flight mode or turn it off overnight, so you still have enough juice for the next day.
I think it's more battery friendly rather than charge it overnight while still have alot juice in it.
I think it's better to put it in ultra power saving mode instead so you won't miss any important calls or texts.
It is lithium, replaceable battery. Either enjoy it fully charged or buy spare battery and craddle/charger to replace dead one when needed. It only will last so long and you may need replacement in about 2 years anyway.
Sent from my SM-N910T using XDA Free mobile app
no its fine. if you want to increase charging time get a Qi charger which takes 5 hours to charge anyway.
Not much to worry about when the battery is user replaceable. You'll be fine, but even if you're not, you can get a brand new OEM battery for 30-35 USD.
No it isnt.. I have 3 years old galaxy s3 i have been always charging it overnight.. Still no issue.. Working good
ar216893 said:
wow. That's great battery. I also usually charge my phone overnight, but I have <10% when I charged it.
I think it will damage the battery somehow, but I can't confirm this, many people have better battery knowledge rather than me, so just wait them to answer it.
But I wanna give suggestions, if your full day use is just consume max 40% batt, just put it in flight mode or turn it off overnight, so you still have enough juice for the next day.
I think it's more battery friendly rather than charge it overnight while still have alot juice in it.
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thanks for the reply's guys.
well yes normal after a day at the office and then i play around at night and then it goes int he charger with 60 - 50 or 40% i really did not get lower then 40% yet.
Racinghart91 said:
thanks for the reply's guys.
well yes normal after a day at the office and then i play around at night and then it goes int he charger with 60 - 50 or 40% i really did not get lower then 40% yet.
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lol. that's really different..
Play a lil bit more and then charge it.
Or just charge it but don't use fast charge..
ar216893 said:
wow. That's great battery. I also usually charge my phone overnight, but I have <10% when I charged it.
I think it will damage the battery somehow, but I can't confirm this, many people have better battery knowledge rather than me, so just wait them to answer it.
But I wanna give suggestions, if your full day use is just consume max 40% batt, just put it in flight mode or turn it off overnight, so you still have enough juice for the next day.
I think it's more battery friendly rather than charge it overnight while still have alot juice in it.
Click to expand...
Click to collapse
ar216893 said:
lol. that's really different..
Play a lil bit more and then charge it.
Or just charge it but don't use fast charge..
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i dont use fast charge at al, i tried it out when i charged it for the first time but thats about it i can last my day with one battery and if i would i could do 2 days.
i love the note 4 haha