I've been using my s2 for about a year and and the past few days I notice it's charging slowly now. It takes about 9hours to fully charge and I did have the device fully turned off. Why is it now charging so slow now? It used to take 4hours to fully charge. I'm using the ac adapter that is included with the tablet so it is a genuine.
I just got a Tab S2 and i noticed this too, I was like wow, this is charging slow. I just updated to the latest firmware.
occasionally mine does this too. I just unplug and replug and it gets to normal.
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Within the last few days I've notice that my phone is charging at unbelievable slow rate via the wall charge that was supplied. I usually get a full charge in maybe 1-2 hr depending on what percentage the battery is at. Once it is fully charge it hold the charge, but when it drains then it would take like 6 hrs to do a full charge. I've tried to soft reset it to see if the percentage goes up, but it stay the same. I turn off the phone to let it charge, but it still charge at a slow rate. I'm wondering is it time to purchase a new battery.
What do you think? And is there any other test I can do?
The slow charge could be one of a few things... One could be the battery as you suspect (and probally most likely).. Also, are you chargign the phone in a diffrent place? If the battery gets too warm from lack of circulation, it will not charge (or just charge much mroe slowly).. It also could be that your USB port is starting to go... IF you have a stand alogn abattery charger available for it (like one on a docking station) try to charge it on there and see if it still charges as slowly.. Another though could be if you are charging it in your car while using GPS or Wifi.. IF those are left on, they suck down the battery a lot faster and thus it uses the electricity as fast as it can pull it in.. I woudl suggest powering the phone down while charging.. that could also help...
i always charge it in the same spot since i got the phone. i dont have a dock charger. its weird last night i was at 49 and i turn off the phone completely and plug it in. woke up today the orange light indicating that it was charging still was on. turn on the phone and it was at 55 percent. WTF!!!!!!!!!!
I guess that touch pro 2 better come out soon.
itzstevo said:
i always charge it in the same spot since i got the phone. i dont have a dock charger. its weird last night i was at 49 and i turn off the phone completely and plug it in. woke up today the orange light indicating that it was charging still was on. turn on the phone and it was at 55 percent. WTF!!!!!!!!!!
I guess that touch pro 2 better come out soon.
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i have the same problem. Its either your USB port or the charger, so simply go buy a new charger and if it still does it the port is bad....if not, problem solved
or put it in your computer to charge, that avoids buying a new charger.
usb charging is always slower then wallplug charging as usb can only provide
5v * 0.5Amps == 2.5Watt
where
wall charger can provide as much watt
as the charger is made to
but of cause the pda will only draw as much
amps as it was made to support
I was under the impression the charging capabilities of this phone were insane? My note 4 is charging very slow even with the phone off. Ive toggled the Fast Charge on and off (battery page in settings) and regardless of what i chose its very slow. I think my Note 3 charged faster than this. Is something wrong with my charger or my phone? Should i echange it for another?
Exchange it. With the included charger mine charges in about an hour.
Hgaara said:
I was under the impression the charging capabilities of this phone were insane? My note 4 is charging very slow even with the phone off. Ive toggled the Fast Charge on and off (battery page in settings) and regardless of what i chose its very slow. I think my Note 3 charged faster than this. Is something wrong with my charger or my phone? Should i echange it for another?
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Click to collapse
The way fast charge works is with wall adapter and cable that came with phone and screen off. Another way is phone off. Takes a bit over an hour when phone dead
NOTE 4
Looks like I'll exhange it then, cause with the phone off, it took about an hour to go from 25% to 38%. Its strange cause my note 3 was usable while using GPS, and phone connected to car charger, not even a 2.1amp one and it would charge quickly. Note 4, actually went from 38% to 52% in about 3 and a half hours the same way
Mine is the opposite, charges fast and and drains fast. When I unplug it will go from 100% to 95% in 5 minutes with no use and screen off. I tried several battery app with no success to fix the problem.
Hgaara said:
Looks like I'll exhange it then, cause with the phone off, it took about an hour to go from 25% to 38%. Its strange cause my note 3 was usable while using GPS, and phone connected to car charger, not even a 2.1amp one and it would charge quickly. Note 4, actually went from 38% to 52% in about 3 and a half hours the same way
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Fast charge will only work screen off. If u using GPS then phone is awake and u get slow charge
Also make sure fast charge is clicked on.
NOTE 4
Did you take off the plastic stickers from the charger? Mine started fast charging after I did that. I think it was covering part of the connection somewhere.
I hope u connected to ac and not USB check battery in settings make sure it says charging ad and not charging usb
Yes mine says it is charging via AC. I havent removed the plastic from the charger, ill try it. The weird part is, last night i had 5 percent battery. At around 2:30 i turned off the phone and connected to the charger. I wake up around 9:30, a whole 7 hours later, and the phone only charged up to 89%. It takes 7 hours to not even charge full percent? Is that normal? Granted, if i turned off the phone or even had it on, my Note 3 charged within 2 hours or less even from dead. So i should just exhange the phone right?
Hgaara said:
Yes mine says it is charging via AC. I havent removed the plastic from the charger, ill try it. The weird part is, last night i had 5 percent battery. At around 2:30 i turned off the phone and connected to the charger. I wake up around 9:30, a whole 7 hours later, and the phone only charged up to 89%. It takes 7 hours to not even charge full percent? Is that normal? Granted, if i turned off the phone or even had it on, my Note 3 charged within 2 hours or less even from dead. So i should just exhange the phone right?
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Click to collapse
Bad phone
NOTE 4
Hey guys,
I haven't used my Galaxy Tab S2 in a while now. When I plugged it in it was at 0%. I used "a" (possibly not original that came with box) OEM 2.0A Samsung Charger + Note 5/Samsung Official Cable to charge my tablet. It has only gone up by 5% in the past 30 minutes.
Also when it was at 0% it said it'd take 7hr 12min to fully charge.
Is this normal when the tablet has not been used in a long time, or am I possibly looking at a bad charger/cable as the charger and cable charge my Note 5 just fine at the normal (non-fast charge) speed where it charges my phone fully in just over 1hr 30 min.
If someone could help me out to resolve this I'd be grateful.
Thanks! :laugh:
Don't think the charger and cable are faulty as they work on your mobile. Generally whenever I charge my Samsung galaxy tab s2 using a different charger it shows a notification if the charger plugged in is slow. If it didn't show this I don't see why it would take so long other than the charger your using has a lower output causing it to take a lot longer than usual to charge.
Every android device I have will sometimes not charge fast enough - it doesn't matter what charger I'm using. If I catch that the charge is slow I just unplug it and replug it a it'll be normal again. I think the "smart charge" goes crazy sometimes.
I had the same problem on the tab s2 8''. It was because the motherboard broke. They fixed it under warranty.
When I had this problem I couldn't attach any external device (usb, playstation controller) through USB. Try if you can
I don't have the original charger anymore to compare on my 9.7. I use anker potable batteries to be free of wall sockets. It isn't 2.0. In battery monitor widget, really good app, shows charge anywhere from 1200-1600mA 20% per hour while in use during charging. 5 hours total. I think with screen off I get 30%. I get 10 hours of screen on time zero loss with it off over night. Using 5.1
It could be the motherboard. I know with laptops charging starts to mess up a few weeks before it no longer works at. The connection between the USB and board weakens over time/use.
moustafasadek11 said:
Hey guys,
I haven't used my Galaxy Tab S2 in a while now. When I plugged it in it was at 0%. I used "a" (possibly not original that came with box) OEM 2.0A Samsung Charger + Note 5/Samsung Official Cable to charge my tablet. It has only gone up by 5% in the past 30 minutes.
Also when it was at 0% it said it'd take 7hr 12min to fully charge.
Is this normal when the tablet has not been used in a long time, or am I possibly looking at a bad charger/cable as the charger and cable charge my Note 5 just fine at the normal (non-fast charge) speed where it charges my phone fully in just over 1hr 30 min.
If someone could help me out to resolve this I'd be grateful.
Thanks! :laugh:
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Sounds normal. The big Lion batteries in these devices are just weird at time. Running one down to 0 is a good way to kill the battery permanently. Let it charge slowly and then keep it above 20-30% from now on. Should improve over time.
I think its a myth you shouldn't let the battery get low. As long as the battery itself says I'm at zero at the correct voltage then zero is perfectly fine. I'm not an expert here but at 5% battery I'm at 3.6v and will turn off in a few minutes after that. I think batteries are manufactured to safely go down to 3.2 before saying no more. Need to charge.
So I recently picked up a T813 to replaced my Nexus 7 (2013), I've had a few weeks now, and as with all my devices I slow charge it. This tablet generally took ~30 hours or so to charge at 0.35-0.45 amps, but I didn't think anything of it. This week I went on a trip and plugged it into a charger that can output anywhere from 0.8 to 1.8 amps depending on the port you are using (all the current ratings I'm listing are what I've measured, not what the devices are rated). My tablet said "Charging" at first, but then once it hit 75% all it would say is "Charging Slowly" no matter what. Now that's all it will say. Sometimes after a restart it will say "Charging" briefly, but then it goes back to "Charging slowly". The charger I was trying to use was an Anker product, so not a complete "no-name" charger.
I did some more checking and it appears my tablet has an upper charge limit of 1.5 amps using even the factory charger which is rated 2.0 amps. That same factory charger plugged into my Nexus 5X outputs 1.88 amps. Anything less than 1.5 amps, my tablet behaves as the rest of the devices. If I plug the tablet into a power source that current is limited to 0.5 amp, using the same cable, using an Honor 5X, and the Tab S2, both draw the ~0.5 amp.
Now the "Charging" and "Charging Slowly" messages were on Lineage, however since I have returned home, I and done all the subsequent testing, I have used Odin to return completely back to the factory Samsung software. Right now I have some videos playing to run the battery down, and am planning to trying to charge the battery all the way up using the factory charger to see how long it takes. If it also takes 30 hours, I'm going to assume it has to be a hardware problem?
Anyone else have any ideas?
My T813 arrived with Nougat on it. The only Odin firmware I could find that would successfully flash was a Marshmallow so I let videos play overnight (which did actually play overnight surprisingly!) to fully drain the battery. This morning I started charging the battery with the OEM charger, and from fully dead to 100% it took roughly 4.5 hours. So I would say this is normal from what I've read. I would say this rules out any hardware issue.
My next test will be to find a flashable Nougat OEM image as it doesn't want to update itself. Then see how it performs then. I'm starting to wonder if Samsung changed something in the firmware to make it charge slower on purpose just to prevent any "Note" like issues from happening? Finally then I'll have to also go back to Lineage, as I don't plan on using it at all with the stock software, as it's quite unbearable. There's a reason I only buy devices that Lineage is available for.
So after updating to Nougat, and letting it update, then fully draining the battery again, which again took overnight, it seems to charge even faster. This time from 0-100% taking just under 4 hours using the OEM charger, at roughly 3 hours 45 minutes.
I'll put Lineage back on it tonight, however this definitely calms my concern that I had a hardware issue. It's definitely fine. I'll see what kind of charge time I get with Lineage.
It charges with ~1600mah
I've had slow charging issue twice. I sent it in the first time and Samsung sent me a slow charger (not fast charger) to use. Worked fine for about 10 months. Once I update to Nougat, my charging became slow again.
Seems like many people have slow charging issues with this tablet. I have the Verizon tab s2 9.7
Extreemator said:
It charges with ~1600mah
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Yeah this is what I've noticed. This seems to be about the upper boundary. Despite being shipped with a 2 amp charger. I did reinstall Linage, and it charges fine with the OEM charger, so it's not a bug on their end, or a hardware problem for me. With LOS and the OEM charge it's still ~4 hours to charge with is what I would expect roughly based on my other tests, even though LOS still reports charging slowly.
I think my problem early with the 30+ hours of charge time was related to the hub I was charging with. I have been having issues where I would wake up and my phone wouldn't be charged at all. Most nights it would though, so I figured my cable was starting to go bad. Swapped the cable and same issue. Measured the current on the ports, and it was far below what it should be on a USB port, the charge ports were getting 0.18-0.2 amps, the regular ports were 0.2-0.3 amps (not sure why the regular ports were getting more). Then I noticed the power adapter was not plugged in all the way into the wall. After plugging it in all the way the current on those ports returned to normal. This honestly doesn't make any sense to me, so it maybe time to replace that hub. Either way, I know the problem is not the tablet, which calms my fears about it, since it was the new piece of hardware.
So I recently updated to the April Security patch on the 27th April and on the next day was on a trip and had my phone got wet for the first time (used it by the pool). I got it dried before charging on that same day and was able to fast charge as normal.
However, I noticed yesterday that when I plugged my phone and fast charge is enabled, it gets too warm. Too warm than normal and the percentage doesn't go up. It gets too hot that it's uncomfortable to touch so I decided to turn off fast charge and charge slow.
I am using the original charging brick and official Samsung usb cord. I also tried with my QuickCharge compatible powerbank and the same thing happens BUT if I am in a air conditioned room or anywhere cold enough, the phone fast charges and percentage does go up.
Anyone experiencing this as well after the update or is it because I have dipped the phone in water? I need your thoughts.
I have an Exynos Note 8 Duos