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[Q] 3 Hours of Charging = 30% Battery

I'm unsure what's wrong!!!
My phone has been fine, until it died today. I practice a 1 charge a day rule and I let my battery drain completely before I even think about putting it back on the charger.
Today, my phone died a littler earlier than expected, but that's okay because I was using my iPhone for most of the day. I got home at about 11PM and put my phone on the charger at 11:15PM. Here it is, 2:25AM and my phone only has 30% charge.
I've never noticed it charging this slowly before because I typically put it on the charger before I go to sleep and take it off when I wake up. This doesn't seem normal from ANY phone that I've ever used or troubleshooted in my life.
Why so slow? Is everyone's phone just as slow or should I be concerned?
Edit: I am using the charger that came with my phone in the same wall outlet that I've used since I got the phone. Nothing else is plugged into that outlet, either.

It would seem sensible to try a different charger and power outlet.
Sent from my Nexus 4 using xda premium

Your should be at 100% in that 3 hours. Try using a tablet wall charger.

With my phone, sometimes it charges in a flash, and sometimes it's charging for hours, idk why they do this.

drpepe said:
It would seem sensible to try a different charger and power outlet.
Sent from my Nexus 4 using xda premium
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I don't have another charger. All I own is Apple products, unfortunately.
I've done other other outlets throughout the house before posting, but I wouldn't see why the one I'm using is compromised in the slightest. It's charged the phone fine since I've gotten it.

dralways said:
Your should be at 100% in that 3 hours. Try using a tablet wall charger.
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The only Tablet I have is my iPad. I was thinking about just using the A/C adapter, but I was worried that that might mess something up with my luck. LOL.

You can't use the iPhone\iPad chargers as most of them don't comply with the USB charging standard (It will only charge at 500ma, the limit of USB charging).
You said it died quicker than usual as well? Sure nothing is running that drains the battery? Check the battery usage in settings after leaving it unplugged a while and see if you see anything that's using a ridiculous amount of battery.

I've had the same problem. Sometimes I plug mine into a wall charger and it reads Charging (USB) which may be your problem. Other times it reads Charging (AC).
Sent from my Nexus 4 using xda app-developers app

xrsxj said:
You can't use the iPhone\iPad chargers as most of them don't comply with the USB charging standard (It will only charge at 500ma, the limit of USB charging).
You said it died quicker than usual as well? Sure nothing is running that drains the battery? Check the battery usage in settings after leaving it unplugged a while and see if you see anything that's using a ridiculous amount of battery.
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It's been off of the charger for about an an hour and a half and nothing out of the norm is draining the battery. Screen on time is at 40%, but that's because I was reading all of my sports news and stuff from my device.
Interesting thing to note: I'm at 79% on my Nexus 4 after about an hour and a half unplugged and doing regular browsing. I'm at 98% on my 4s with doing just about the same things as I've done on my Nexus 4, and even watching a YouTube video on my 4s. I've also had a great deal of voice calls and texts this morning to my iPhone. They were neck and neck when I first got my N4 on December 10th. Now, it's dying faster. The only difference is that I've installed Spotify on my Nexus 4 since then... Which isn't running.

Chinese281 said:
I've had the same problem. Sometimes I plug mine into a wall charger and it reads Charging (USB) which may be your problem. Other times it reads Charging (AC).
Sent from my Nexus 4 using xda app-developers app
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It was reading USB last night! I thought that was normal, lmao... Thinking it meant "there is a USB cable charging it and not wireless charging."
Hm... The plot thickens, I guess.

Yeah it sometimes reads USB but if you unplug then plug it back in, it will change to AC. Not sure how to fix it but that's your problem right there.
Question: are you stock, rooted stock, or different ROM?
Sent from my Nexus 4 using xda app-developers app

Slow charge???

At what mA should the Nexus 4 be charging?
With current widget, and the same charger, my phone charges at 200mA, my wife's at 600-700mA. This is using the USB wall charger from LG
I switch to a wall charger and mine goes to 400mA.
My phone charges so slow
Sent from my Nexus 7

It's normal. Mine charges slow as well.

pnut22r said:
At what mA should the Nexus 4 be charging?
With current widget, and the same charger, my phone charges at 200mA, my wife's at 600-700mA. This is using the USB wall charger from LG
I switch to a wall charger and mine goes to 400mA.
My phone charges so slow
Sent from my Nexus 7
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With no background apps running, my Nexus 4 charges around 800mA until it reaches about 80%, when it starts to ramp down until battery is fully charged.

Thanks. It seems so weird that my wife and I have the same phone, same setup , and hers seems to charge twice as fast.
Mine is always 200mA and hers is 400mA, or when mine is 400mA, hers is ~700mA
I'm going back to complete unrooted stock. See what happens.
The only difference is my phone is newer than hers. Her phone was out of the original batch, mine is very recent. For example, hers is original, mine had the nipples at the bottom to prop it up for the speaker.
Sent from my Nexus 4 using Tapatalk 2

Went back to complete stock.
Wife's = 800mA
Mine = 400mA
Crazy
Sent from my Nexus 4 using Tapatalk 2

Stock charger sucks, sometimes charge goes as USB and not AC. I have to re-plug

normal. that's good things. almost all old android device charge very quick. sometimes 30mins for 86/100 battery
but the temerature is getting high either. so if you charge slow ,that 's a good things

calanizzle said:
Stock charger sucks, sometimes charge goes as USB and not AC. I have to re-plug
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It's true, stock charger generate a lot of issue imho. I swap to my old HTC desire charger and all fine now
Inviato dal mio Nexus 4 con Tapatalk 2

try charging your phone when your battery is like ~10% or so.

Wireless fast charging very slow to none... anyone?

Mine is very very slow, sometimes only added 1% after an hour of fast charging.
Though when i turn off fast charging on the phone, it charges normally (faster than when fast charging is switched on).
I'm using the Samsung original fast charger (the new tilted model) by the way.
Anyone experiencing the same problem? looks like a firmware issue?

Most times you have to reposition the phone until it says that it's actually fast wireless charging. Kinda Irritating. Also make sure the fast wireless option is turned on in the settings.
Sent from my SM-G935T using Tapatalk

No such problems here. Drop it on the fast charger as it lands and away it goes in fast charger mode. Are you sure you have it enabled in settings......
Sent from my SM-G935F using Tapatalk

angusc said:
No such problems here. Drop it on the fast charger as it lands and away it goes in fast charger mode. Are you sure you have it enabled in settings......
Sent from my SM-G935F using Tapatalk
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What charger are you using? Are you verifying each time that it's actually fast charging?
Sent from my SM-G935T using Tapatalk

I use a Samsung fast wireless charger. Now I also remember that if you don't have the Samsung one then go to your local store where they do have one and land your phone on it. I read that the fast charging wireless feature only starts working after you use a genuine Samsung fast wireless charger, but remains functional thereafter.
Yes it says fast charging and I can tell by the short time from empty to full charge (usually around 1.5 hours) approximately.
Sent from my SM-G935F using Tapatalk

yes as mentioned i'm using the original samsung wireless fast charger, the latest model which it's at an angle so there won't be the problem of misplacement. and yes again fast charging is turned on, cables, adapter are all original stuff that came with the phone.......

hpl912 said:
yes as mentioned i'm using the original samsung wireless fast charger, the latest model which it's at an angle so there won't be the problem of misplacement. and yes again fast charging is turned on, cables, adapter are all original stuff that came with the phone.......
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Subscribe to this one.
S7 Edge (Exynos), using Samsung tilted wireless charger with phone original adapter / cable. Phone it's saying fast wireless charging, but is only fully charging in about 4.5 - 5 hours (starting from 10% or lower).
Tests from 45% took same, about 2.5-3 hours.
Charging by cable: about 1.5 to 2 hours. Also saying fast charging.
Samsung is waiting for me with phone and charger to test them in their shop.
Will keep you updated.

agreed, have noticed that it occasionally shows normal charging rate when in fact attached to a quick charge source... reboot/replug always seems to fix but I've learned to check each time I plug it in so that I don't come back in an hour to find it's barely moved

gaurika said:
Subscribe to this one.
S7 Edge (Exynos), using Samsung tilted wireless charger with phone original adapter / cable. Phone it's saying fast wireless charging, but is only fully charging in about 4.5 - 5 hours (starting from 10% or lower).
Tests from 45% took same, about 2.5-3 hours.
Charging by cable: about 1.5 to 2 hours. Also saying fast charging.
Samsung is waiting for me with phone and charger to test them in their shop.
Will keep you updated.
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Fast charging by cable, normally takes ~100mins from 0-100% on S7 Edge. However, my S7E has the same problem as yours with mine charging at average 25% per hour with and without the wireless fast charge option checked.

How do I test Quick Charge 3.0?

I just got myself a new V20 yesterday. I tried charging it with my own Quick Charge 3.0 wall charger but I'm not too sure about the charge time.
So I'm going to try again. But before I begin, I need some advice.
How do I check if it's really charging with Quick Charge 3.0? Also, the phone now is currently about 66%, how much more do I have to drain before I commence?
Sent from my LG-H990 using Tapatalk

As much as you want. Thing to remember...QC is variable rate, the more charged you are the less fast it is. Also, official posted charge times from OEMs refer to a phone powered off typically.

Right. Powered off. Good point.
And I supposed using an app like "Ampere" is not going to work because of QC3.0's variable voltage and amps, am I correct?
Sent from my LG-H990 using Tapatalk

Okay. Just did a little test.
Started at 5pm with 25% battery left and using my own QC3 wall charger.
Ended at 5.50pm with 91%.
That's pretty fast! And the best part, the battery stays cool despite Quick Charge.
I'm going to try charging from 0% tonight.
Edit - Oh and my phone was turned off while charging.
Sent from my LG-H990 using Tapatalk

BozQ said:
Okay. Just did a little test.
Started at 5pm with 25% battery left and using my own QC3 wall charger.
Ended at 5.50pm with 91%.
That's pretty fast! And the best part, the battery stays cool despite Quick Charge.
I'm going to try charging from 0% tonight.
Edit - Oh and my phone was turned off while charging.
Sent from my LG-H990 using Tapatalk
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Just an FYI, it's not good to drain your battery to zero. It'll shorten it's life. Keeping it between 40-80% is optimal from what I've read.
Sent from my SM-T810 using Tapatalk

Ampere app on Play Store, check it's charge current values specially when screen is off. I think it should be like between 2400 mA to 3200 mA. When screen is on , the charge current values decreases. Also with the app, you can compare the current values of QC 2.0 versus QC 3.0. Cable should't be faulty.

Pick_A_Name said:
Just an FYI, it's not good to drain your battery to zero. It'll shorten it's life. Keeping it between 40-80% is optimal from what I've read.
Sent from my SM-T810 using Tapatalk
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Thanks for your advice. I am aware of this. But I want to experiment just this one time. So it shouldn't hurt too much.
And the results are good! 30 minutes and it reaches 51%. 60 minutes with 89%. 70 minutes 95%. And 83 minutes to hit 100%.
Very pleased with the results.
Ali Mirza said:
Ampere app on Play Store, check it's charge current values specially when screen is off. I think it should be like between 2400 mA to 3200 mA. When screen is on , the charge current values decreases. Also with the app, you can compare the current values of QC 2.0 versus QC 3.0. Cable should't be faulty.
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Ampere might not be the best way to measure current values because of the way Quick Charge 3.0 charges with variable voltage.
The few times I measured all fall below 1000mAh.
Sent from my LG-H990 using Tapatalk

Will the Samsung charger for the note 7 quick charge the v20?
Sent from my LG-H918 using XDA-Developers mobile app

jjr3211 said:
Will the Samsung charger for the note 7 quick charge the v20?
Sent from my LG-H918 using XDA-Developers mobile app
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Yes it does. I have been using it.

Great thank you
Sent from my LG-H918 using XDA-Developers mobile app

Just not as fast because Samsung uses quick charge 2 and LG has version 3.
Sent from my SM-T810 using Tapatalk

So the LG charger is not Version 3?

Drey070 said:
So the LG charger is not Version 3?
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Doh.

Hey fellas, not to take over the subject matter but feel like you all know batteries well. What if a 1am charger is used overnight for charging. Going with the idea that a slower charge charges the battery better and maintains a better charge all day, or is that not the case. Also is any harm done with charging with a slower charger. Thanks

I never use quick charge at work or at home, slow charging will prolong the battery life. I always start to charge at about 8-15% where possible, and disconnect the charger around 90-95%, this is the proper way to prolong litium battery.
The only time I use QC is when i'm traveling.
---------- Post added at 03:01 PM ---------- Previous post was at 02:58 PM ----------
Beandip-Javier said:
Hey fellas, not to take over the subject matter but feel like you all know batteries well. What if a 1am charger is used overnight for charging. Going with the idea that a slower charge charges the battery better and maintains a better charge all day, or is that not the case. Also is any harm done with charging with a slower charger. Thanks
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I use my old samsung 2A charger, all my QC are still in the box, about 5 of them.:victory:

Thank you @kms108 , I use 1am charger for my overnight charging at home overnight. I tend to also stay away from fast charge but wasn't sure if I was doing more harm then good. I do have a quick charge at work that I use for about 10 min before I leave the office.

Beandip-Javier said:
Thank you @kms108 , I use 1am charger for my overnight charging at home overnight. I tend to also stay away from fast charge but wasn't sure if I was doing more harm then good. I do have a quick charge at work that I use for about 10 min before I leave the office.
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I have a samsung 2A and a SE 1.5A using them at work, they are not QC, but they do charge my phone pretty quick especially my xperia XP.

Beandip-Javier said:
Thank you @kms108 , I use 1am charger for my overnight charging at home overnight. I tend to also stay away from fast charge but wasn't sure if I was doing more harm then good. I do have a quick charge at work that I use for about 10 min before I leave the office.
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It is better to use a slower to prolong the longevity of the battery. You won't get more 'charge' from using a slower charge. I try to use slower chargers when I can. I usually use my Samsung 2A chargers and use my adaptive fast charging when I need quickness. The LG QC 3.0 does pretty well though. Battery doesn't get that hot but I'm quite sure it still isn't good for the longevity. Nonetheless, we have swappable batteries so I can use my AFC and LG QC 3 more often lime I do my note 4. My HTC m8 and moto x pure usually were used with 1A chargers most of the time unless I needed a super fast charge. Also, LG makes quality batteries. Probably why Samsung is switching to them until they figure out what the hell they did. Also, notice apple doesn't use quick charging technology. iPhone's battery tend to hold charges better until a out 18 Mo th period before user starts noticing appreciable decline. The peeps that put iPad chargers on iPhone's will see less longevity from their battery.

So I thought that QC3.0 was supposed to get you closer to 80% in 35 minutes, vs the 50-55 from qc2.0. So I also read that the factory charger that LG sent is a QC2.0 and not 3. So I bought a 3.0 brick and also a new usb c that is certified compliant with QC3.0. Still only got to about 40% in 30 minutes. Not sure what's going on with that. I understand longevity and all of that. However I got this phone because once my battery is shot I can just swap it. So I don't mind getting that faster time and buying a newer battery a bit early.

Best quick charge cable
Skripka said:
As much as you want. Thing to remember...QC is variable rate, the more charged you are the less fast it is. Also, official posted charge times from OEMs refer to a phone powered off typically.
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Any recommendations on the best usb c cable for my LG V20. Some I have purchased do not quick charge as described.

Fast Charge 4-5hrs?

just wondering how's everyone fast charge is, back when i had my note 7 it usually only takes an hr and 15mins for the phone to get fully charge, even in use. I'm currently using the stock charger and I'm not happy for it

borismanalo said:
just wondering how's everyone fast charge is, back when i had my note 7 it usually only takes an hr and 15mins for the phone to get fully charge, even in use. I'm currently using the stock charger and I'm not happy for it
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Yeah....., did you plug it in and immediately take that screen shot? Are you using the stock cable with it? And lastly does it say fast charging in the notification bar?
Mine takes roughly an hour and a half to go from 20ish% to 100%

DarkestSpawn said:
Yeah....., did you plug it in and immediately take that screen shot? Are you using the stock cable with it? And lastly does it say fast charging in the notification bar?
Mine takes roughly an hour and a half to go from 20ish% to 100%
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no, i have it plugged in for a while... but i use it while its charging.
and yes stock cables and plug, and yes it does says fast charge... i guess im just used to samsung fast charge. that even in use it still charge the phone pretty quick

Your using the phone so the charge time hasn't adjusted. My Note 7 didn't charge in 1hr 15 min while I was using it.
Sent from my VS995 using Tapatalk

borismanalo said:
no, i have it plugged in for a while... but i use it while its charging.
and yes stock cables and plug, and yes it does says fast charge... i guess im just used to samsung fast charge. that even in use it still charge the phone pretty quick
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My V20 charges crazy fast. There has been 2 times where It seemed to charge very slowly but I chalked it up to a likely bug or something. Other than those 2 times the device charges as it should, even when I'm using it providing the screen brightness isn't all the way up.
Sent from my Nexus 7 using Tapatalk

I will say if its charging slow make sure the usb end is plugged all the way in to the plug that goes in to the wall. I noticed this morning I was getting a slow charge and when looked at the connection it was not in all the way. Once I pushed it all the way in it started charging fast
Sent from my LG-H910 using Tapatalk

As a v10 user I can tell you that sometimes (even using factory charger and cable) it doesn't go into fast charge.
Unplug it and plug it back in the lock screen should state "fast charging.." not just "charging.."
Sent from my LG-H901 using XDA-Developers mobile app

V20 doesn't charge as fast when using while charging. I am guessing that is a firmware thing or intentional to protect from heat, which I rarely notice.

@rbiter said:
V20 doesn't charge as fast when using while charging. I am guessing that is a firmware thing or intentional to protect from heat, which I rarely notice.
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that's understandable... back in note 7 it gets pretty hot but never exploded or smoked... but note 7 in use while playing a game will still charge the phone in 2hrs...
for me its a really big difference coming from note 7
thanks for everyone's input
using note 7 charger is actually a lil faster than the stock.... as far for my experience