Slow charging with phone turned On - LG G5 Questions & Answers

Hello dear fellows- i am facing a very strange issue on my lg g5 (850).
I have a third party charger (Aukey QC 2.0) with a usb A to Usb Type C cable. This charger never failed me once on any of my Samsung phones. Quick charging always worked as it should but with lg g5 its charging speed is very slow. According to Ampere app its just 310 mA. After connecting this charger it even shows fast charging notification but fast charging is not there.
Today i've decided to charge it after turning it off completely and guess what... It was charging really fast as it should while turned On.
Now i am confused whether it's LG's software which is preventing 3rd party cables/chargers to charge fast while turned On or is it something else.
Any input guys or similar experience?
Sent from my LG-H850 using XDA-Developers mobile app

It's always possible an app is using a lot of battery while you're charging. So the phone charges slower. Question though, why don't you just use the provided charger from LG?
Sent from my LG-H850 using XDA-Developers mobile app

davitox87 said:
It's always possible an app is using a lot of battery while you're charging. So the phone charges slower. Question though, why don't you just use the provided charger from LG?
Sent from my LG-H850 using XDA-Developers mobile app
Click to expand...
Click to collapse
Unfortunately, the LG charger was lost last week during my travel so by chance I had this Aukey charger lying around which is Quick Charge 2.0 supported so i am trying to accomplish the original results with it until i'll get my hands on a QC 3.0 compatible charger.

Hm, my Aukey Quickcharge car charger even works fine with my phone.
Make sure you aren't using the phone while charging it, it will always charge much slower.

I have some doubts on my data cable. Will try to swap it with another one and will test again.
Sent from my LG-H850 using XDA-Developers mobile app

Swaping cables didn't help either
Sent from my LG-H850 using XDA-Developers mobile app

I can confirm that the LG software does not prevent fast charge with 3rd party chargers and cables.
I'm using a 3rd party QC 3 charger with a 3rd party cable, and fast charging is working just fine when phone is powered on.
And in Battery Monitor Widget I can see that it actually is fast charging and is using QC 3 to throttle charging amperage.
However I've experienced a couple of times, when changing cable in the charger, that it wouldn't fast charge. It was solved by removing the cable from the charger and connect it again, and then it works just fine afterwards.

rd-Target said:
I can confirm that the LG software does not prevent fast charge with 3rd party chargers and cables.
I'm using a 3rd party QC 3 charger with a 3rd party cable, and fast charging is working just fine when phone is powered on.
And in Battery Monitor Widget I can see that it actually is fast charging and is using QC 3 to throttle charging amperage.
However I've experienced a couple of times, when changing cable in the charger, that it wouldn't fast charge. It was solved by removing the cable from the charger and connect it again, and then it works just fine afterwards.
Click to expand...
Click to collapse
Thanks for the confirmation and relevant information.
Right now i only have QC 2.0 charger but i will try to arrange QC 3.0 charger soon to remove any of my doubts.
Sent from my LG-H850 using XDA-Developers mobile app

Seems like slow charging has something to do with the heat/temperature of the battery or overall phone. If i try to charge it when the battery temps are around 30 then it charges really fast but if the temp is above 30 then software somehow restricts the fast charging to avoid any damages.
I am not sure if the above analysis is valid but my observation has lead me to this point only so far.
Sent from my LG-H850 using XDA-Developers mobile app

lethalfriend said:
Seems like slow charging has something to do with the heat/temperature of the battery or overall phone. If i try to charge it when the battery temps are around 30 then it charges really fast but if the temp is above 30 then software somehow restricts the fast charging to avoid any damages.
I am not sure if the above analysis is valid but my observation has lead me to this point only so far.
Sent from my LG-H850 using XDA-Developers mobile app
Click to expand...
Click to collapse
I learned 2 things from my testing using ampere and a drok USB current meter:
First, ampere isn't really that accurate when it comes to this phone and charging currents. It was consistently about 200mah off.
Secondly if the phone is even somewhat warm, it will limit the charge current to ~300 mah with the screen on. However if you turn the screen off, it returns to full charging speed (1.8 amps in the case of my charger) I think it is some sort of thermal throttle to keep the battery from getting too hot.

straxxus said:
I learned 2 things from my testing using ampere and a drok USB current meter:
First, ampere isn't really that accurate when it comes to this phone and charging currents. It was consistently about 200mah off.
Secondly if the phone is even somewhat warm, it will limit the charge current to ~300 mah with the screen on. However if you turn the screen off, it returns to full charging speed (1.8 amps in the case of my charger) I think it is some sort of thermal throttle to keep the battery from getting too hot.
Click to expand...
Click to collapse
since i updated to D it always says slow charging use genuine cable an charger. I already am ?

jazz452 said:
since i updated to D it always says slow charging use genuine cable an charger. I already am
Click to expand...
Click to collapse
That really is frustrating. I always see fast charging when plugged in, although it definitely is not fast at all if you are using it or have the screen on .
Are you plugged into a wall outlet directly? Not an extension cord? Sounds like a warranty replacement may be in order, it's possible there's something faulty with your USB C connector.

Have I not voided warranty with unlock? thanks

Tried with xiaomi charger and it works, no joy with original.
Must be faulty lg charger using same cable

I have LG G4 and I was facing the exact same problem. The phone would charge very slow while screen was on. Once I let the screen go off the phone charged at the expected rate. It seems LG is incorporating some serious throttling in their phones.

lethalfriend said:
Hello dear fellows- i am facing a very strange issue on my lg g5 (850).
I have a third party charger (Aukey QC 2.0) with a usb A to Usb Type C cable. This charger never failed me once on any of my Samsung phones. Quick charging always worked as it should but with lg g5 its charging speed is very slow. According to Ampere app its just 310 mA. After connecting this charger it even shows fast charging notification but fast charging is not there.
Today i've decided to charge it after turning it off completely and guess what... It was charging really fast as it should while turned On.
Now i am confused whether it's LG's software which is preventing 3rd party cables/chargers to charge fast while turned On or is it something else.
Any input guys or similar experience?
Click to expand...
Click to collapse
I think you can not fast charge while the phone is turned off. Maybe someone can start another thread where we can compare battery logs because this will help to see the amount of time used for charging. Is there any way of seeing if the device is using QC 2 or 3?

LG G5 on 7.0
I just got a Warranty phone because of GPS pins lost contact with case. Now I'm getting the slow charge message. I just found if I flipped the USB C over it fast charges. Just thought I would share though doubt y'all wouldn't have learned this by now with all of the testing you've done already.

charlyRoot said:
LG G5 on 7.0
I just got a Warranty phone because of GPS pins lost contact with case. Now I'm getting the slow charge message. I just found if I flipped the USB C over it fast charges. Just thought I would share though doubt y'all wouldn't have learned this by now with all of the testing you've done already.
Click to expand...
Click to collapse
I experienced that too. Isn't it strange?
Also, I experience with some chargers, the phone will just start charging for some seconds and then act as if the cable was unplugged and then start charging again. I don't know why. Anyone experiencing this too? In this case, it didn't help to flip the cable...

So disappointed with my G5 now.
Was great to start with now it's slow charge. Got new batteries but the same. Will charge off till about 5/6% then switch on. Lovely phone now just useless. Even got the phone and amp modules. Lol

caesium2 said:
I experienced that too. Isn't it strange?
Also, I experience with some chargers, the phone will just start charging for some seconds and then act as if the cable was unplugged and then start charging again. I don't know why. Anyone experiencing this too? In this case, it didn't help to flip the cable...
Click to expand...
Click to collapse
This is a problem with the make of the charger. I have some Choetech QC chargers, and the programming in the QC is faulty. Some safety mech kicks in, turns off the charger, then turns back on again, over and over. I have some Tronsmart chargers and there is no issue. Of course, the OEM LG one works fine too.

Related

Charging Woes?!

I just got my LG G2 yesterday. I also have a Nexus 7 2013 and an old Galaxy Nexus. I have a Nexus 7 charger at home and work. I have a modified Fast Charge 2.0A Car charger.
My N7 and GN could "AC" charge off of all of them. The G2 is "slow" charging off all of them. They are all 3 different models of chargers, all above 2.0A so there is plenty of oomph to get it the power it needs.
So whats up with that?
I just tested it. It isn't the Charger but the damn cables. Does LG have some kind of funky pinout for the charger?! Using the supplied cable, it is working on all of my other chargers. If I use my old cable it "Slow Charges" even with the included LG USB Charger.
So something in that cable is altering the amount of power it gets. That SUCKS!
My Nexus 7 will AC charge off the LG Cable. So it's something with that cable that the G2 likes.
LG is notorious for changing stuff around. On the G2x they flipped around the headphone control pins and came out with an additional headset for extra $$ which rendered every other headset with music controls useless. So basically now I have to go and replace all of my USB cables with something LG likes (which will almost be impossible to order something online). Anyone else having issues with other chargers? Luckily it IS taking a charge but just at USB speeds (Slow charge). I use Qi Charging at home for at night, so that isn't an issue but in my Home Office, Work Office, and (especially) my Car I need a fast charge. In the Car, using GPS with the screen on will still deplete on USB power. A fast charge is the only one that can still charge the battery under a heavy load. Similar to watching a movie probably.
All my USB cables woks fine. I would use the included Amazon Kindle cable since it is easily the longest cable with out issue. However older cables do have the problem you described but I suspect it isn't something LG specifics but rather the amount of pins connected in the cables.
-LG G2
I found that my Samsung cables from my S4 and Note 2 work fine with the G2, but any of my other cables, whether they be the cheap $3 ones, ones from other phones, or expensive ones, only charge at the slow rate. I'm hoping we can get a custom kernel that removes that restriction.
So it charges a little slower. Is this a major issue? If so, use the charger provided. Failing to see the problem here.
Maybe its just me. I get that a lot.
My Note 2 2A charger and USB works just fine. If not faster.
Sent from my LG-D802 using xda premium
My N7 2013 charger works perfectly.
player911 said:
I just got my LG G2 yesterday. I also have a Nexus 7 2013 and an old Galaxy Nexus. I have a Nexus 7 charger at home and work. I have a modified Fast Charge 2.0A Car charger.
My N7 and GN could "AC" charge off of all of them. The G2 is "slow" charging off all of them. They are all 3 different models of chargers, all above 2.0A so there is plenty of oomph to get it the power it needs.
So whats up with that?
I just tested it. It isn't the Charger but the damn cables. Does LG have some kind of funky pinout for the charger?! Using the supplied cable, it is working on all of my other chargers. If I use my old cable it "Slow Charges" even with the included LG USB Charger.
So something in that cable is altering the amount of power it gets. That SUCKS!
My Nexus 7 will AC charge off the LG Cable. So it's something with that cable that the G2 likes.
LG is notorious for changing stuff around. On the G2x they flipped around the headphone control pins and came out with an additional headset for extra $$ which rendered every other headset with music controls useless. So basically now I have to go and replace all of my USB cables with something LG likes (which will almost be impossible to order something online). Anyone else having issues with other chargers? Luckily it IS taking a charge but just at USB speeds (Slow charge). I use Qi Charging at home for at night, so that isn't an issue but in my Home Office, Work Office, and (especially) my Car I need a fast charge. In the Car, using GPS with the screen on will still deplete on USB power. A fast charge is the only one that can still charge the battery under a heavy load. Similar to watching a movie probably.
Click to expand...
Click to collapse
Have you tried going to settings>general>PC connection and setting "charge phone" there, as the phone limits the current allowed through if it's on MTP because MTP simply can't handle it.
Sent from my LG-D802 using xda app-developers app
Semantics said:
My N7 2013 charger works perfectly.
Click to expand...
Click to collapse
I am also using N7 2013 charger and it charged pretty fast. But now i'm also trying out a speakerdock. I don't know how fast that is but the n7 charger is pretty fast.
Sent from my LG-D802 using xda app-developers app
I have the same problem OP. if I don't go to bed early enough for slow charge to feed this monster battery I wake up below 100%. It really isn't that big of an issue because the battery lasts anyways but I don't like leaving home below 100%.
Sent from my LG-D800 using xda app-developers app
rfarrah said:
So it charges a little slower. Is this a major issue? If so, use the charger provided. Failing to see the problem here.
Maybe its just me. I get that a lot.
Click to expand...
Click to collapse
The Problem is that it is annoying. Not only is it charging "Slower" but also throw a icon up in the Status bar that you can't dismiss that says "Slow Charging. To Charge faster, use the original charger".
But I want to repeat that it is NOT the actual charger but the USB cables. It WILL fast charge (aka normal charge) using all of my various chargers WHEN I use specific USB Cables. Most of my cables will only slow charge, which is equivalent to a USB trickle charge that can't even charge it fast enough to power the screen. If you use the device in this mode, it still loses power with the screen on.
It just seems there is something in the cable itself that is either not connected or passing through the info to turn up the faster charging. I know the cables are Power+Data cables because I use them for ADB and MPT.
Most cables are not working. I've found a few that are. Unfortunately my 10ft desk cables and my curly car one is NOT working.
The Original Nexus 7 was picky about chargers. It wouldn't even see my car charger where my Galaxy Nexus and New Nexus 7 2013 both show AC (fast charge).
I think the difference between a slow charge and a fast charge is something like 0-100% on fast charge is 3 hours where it's like 9-10 on a slow charge. THAT is the problem.
Update:
Seems this is a legitimate case regarding the Verizon LG G2s AFTER they've received the latest OTA update. It will only charge normally on the included cable. All other cables will result in a Notification that the phone is "Slow Charging" and charges only on 500mAh. You cannot dismiss the notification. Which is the annoying part.
Current ongoing discussions are here:
http://forum.xda-developers.com/showthread.php?t=2460881
As of this posting, it affects all Verizon G2 users and there is no solution. We suspect it is just a Verizon bug. No other cables will charge normally.
No. Mentioned in that thread, my car charger from Verizon charges at ~1000mA. Long, curly, and thick. The new one with the LED and shorted pins. Attached cable and USB work on said charger. The problem is AWG, short, and voltage drops. I have yet to find a working usb cable though.
Mine (D802, EU model, GB variant):
- Belkin Charger 2.1A, N7 2013 cable -> slow charging
- N7 2013 charger + N7 2013 cable -> fast charging
So it's not just the cable; it's also dependent on the charger.
The voltage drop in the cable will cause the phone to draw a substantially lower charge. Therr doesn't seem to be anything unusual about the cable other than it being unusually good quality, being thick and short.
When charging, it's important having a charger with the data pins shorted, but I think most wall charger are. The slow charge warnings are something special in the Verizon models, I only get a slow charge warning when It's actually slow on my d802.
It will appear as though there is a difference of what will happen if there is a voltage drop in the cable based in your carrier model, but the hardware which charges the phone should be standard, albeit probably better quality than most other chargers.
Sent from my LG-D802 using XDA Premium 4 mobile app
Hmnmm
I stopped worrying about cables, adapters, etc by using a TYLT VU wireless charger. It chargers both my Verizon lg g2 and my Nexus 7-2013 fully and quickly. My g2 takes only 2-3 hours and my Nexus is in a leather case.
No wworries, just lay either one on its 45 degee angle platform and forget about it. Truly a wonderful charger.
I have a Samsung Qi Charger. I don't worry about it but there is a software bug with the Verizon model since the OTA update. Another thread listed above tells of the details.
Sent from my Nexus 7 using XDA Premium 4 mobile app
the solution is simple. just shortcircut data+ and data- and it will fast charge.
hopefully som Kernel hacker can build us a new Kernel. when the phone detect data connection it goes to 500mah. if u chortcircut them 1a+
maydayind said:
the solution is simple. just shortcircut data+ and data- and it will fast charge.
hopefully som Kernel hacker can build us a new Kernel. when the phone detect data connection it goes to 500mah. if u chortcircut them 1a+
Click to expand...
Click to collapse
This is NOT the case. The Verizon variant is very picky and requires a 24g USB 3.0 cable or else it will force slow charging at 500mah.
There is a whole thread with findings thats like 30 pages long. The Verizon model is not behaving like the other variants, so unless you have a Verizon model with the latest OTA and have personally tested and found a working solution, then you need not comment.
This thread should be closed so random uninformed persons stop making false accusations. This thread was started over a real problem but didn't take off. Another thread was created that did, and it is linked above. This is a real problem with a real solution. All real findings and discoveries are listed in that active thread listed above.
This should be a place holder for searches but needs no new comments. Please direct all comments to the other thread linked above.
Sent from my Nexus 7 using XDA Premium 4 mobile app
And linked here for easy reference:
http://forum.xda-developers.com/showthread.php?t=2460881
Swyped from my Incredible 4G using Tapatalk Pro 12-10

[Q] Charging issues

I just picked up a Verizon LG G3 used...didn't come with the original charger all of my 2amp chargers are INCREDIBLY SLOW, like an hour for %1. I am stock but rooted. If I were using a crappy charger I would understand, but this is so strange. Any suggestions? Perhaps apps that force fast charging? I am new to the rooted scene... Thanks!
mgarcia86 said:
I just picked up a Verizon LG G3 used...didn't come with the original charger all of my 2amp chargers are INCREDIBLY SLOW, like an hour for %1. I am stock but rooted. If I were using a crappy charger I would understand, but this is so strange. Any suggestions? Perhaps apps that force fast charging? I am new to the rooted scene... Thanks!
Click to expand...
Click to collapse
Rooting has nothing to do with it.
Either the phone is bad or your cable/charger.
mgarcia86 said:
I just picked up a Verizon LG G3 used...didn't come with the original charger all of my 2amp chargers are INCREDIBLY SLOW, like an hour for %1. I am stock but rooted. If I were using a crappy charger I would understand, but this is so strange. Any suggestions? Perhaps apps that force fast charging? I am new to the rooted scene... Thanks!
Click to expand...
Click to collapse
tech_head said:
Rooting has nothing to do with it.
Either the phone is bad or your cable/charger.
Click to expand...
Click to collapse
i just got my G3 today and i am seeing a similar issue.
while setting up for about 2 hours, i gained maybe 4%.
turned off, it looks to charge pretty quick, went from 58% to 78% in less than a 1/2 hour.
while the screen is off, it seems to do, ok, not sure i would call it fast. gained 7% in 20 minutes.
i appreciate any thoughts, even if its a "mine isnt slow like that".
i bought it new from swappa (new), and need to figure out if i have an issue.
Thanks
Try to find an original lg charger man the g3 is the pickiest phone I've ever had with chargers(and cable) , everything except the oem charger that I've tried does the slow charge or the not charging thing. I have tried other quality chargers with it as well and they are slow so just try and get an oem one and see if that fixes the issue
Sent from my VS985 4G using XDA Free mobile app
gcforreal said:
Try to find an original lg charger man the g3 is the pickiest phone I've ever had with chargers(and cable) , everything except the oem charger that I've tried does the slow charge or the not charging thing. I have tried other quality chargers with it as well and they are slow so just try and get an oem one and see if that fixes the issue
Sent from my VS985 4G using XDA Free mobile app
Click to expand...
Click to collapse
those results were with the oem charger included in the box, also similar results while trying my g2 oem charger.
If it's charging slow with the oem cable charger combo it's a possibility it maybe a defect in the charger but again it maybe a hardware issue, get it swapped thru warranty if you can.
Sent from my VS985 4G using XDA Free mobile app
Very odd results here...
My Verizon LG G3 charge was quite low last night, so I plugged it into an LG OEM 1.2amp charger with a Samsung cable. It told me that setup was not supported, and it refused to charge At All, so I changed the cable to a gold-plated Monoprice one (excellent cables...I bought 10). No difference, still would not charge at all and it was down under 10%, so I was getting worried.
Then, on a whim, I plugged in an old HTC 1.0amp charger with the Monoprice cable. Fast charge ! Switched in the Samsung cable, still fast charge !
Less amps, not OEM, but fast charge. No charge at all from the LG 1.2amp charger, which was either from my N5 or N7.
All combos worked at A/C charge speeds on my Nexus5.
After the G3 charged for a while and got up well out of the Danger Zone, I plugged it back in to the combo it had previously told me was incompatible and refused to charge from. Now that it was at 50% or so, that same combo charged the G3 without any complaint !
It is beginning to look like there is some flaw in the G3 charging detection circuitry, where it will refuse to charge when very low from a charging combo that it will charge from just fine if it has more battery available.
trent999 said:
Very odd results here...
My Verizon LG G3 charge was quite low last night, so I plugged it into an LG OEM 1.2amp charger with a Samsung cable. It told me that setup was not supported, and it refused to charge At All, so I changed the cable to a gold-plated Monoprice one (excellent cables...I bought 10). No difference, still would not charge at all and it was down under 10%, so I was getting worried.
Then, on a whim, I plugged in an old HTC 1.0amp charger with the Monoprice cable. Fast charge ! Switched in the Samsung cable, still fast charge !
Less amps, not OEM, but fast charge. No charge at all from the LG 1.2amp charger, which was either from my N5 or N7.
All combos worked at A/C charge speeds on my Nexus5.
After the G3 charged for a while and got up well out of the Danger Zone, I plugged it back in to the combo it had previously told me was incompatible and refused to charge from. Now that it was at 50% or so, that same combo charged the G3 without any complaint !
It is beginning to look like there is some flaw in the G3 charging detection circuitry, where it will refuse to charge when very low from a charging combo that it will charge from just fine if it has more battery available.
Click to expand...
Click to collapse
From what other users have told me the G3 is just very picky when it comes to what charger you use. Mine is the same way. My Sammy charger from my S4 will only charge the G3 slowly.
Something on the Kernel side of things is my guess. It's not something that's terribly wrong with the phone... Just a pain in the ass.
- Tapatalked from the G3
My Samsung charger cable does the slow charge thing on my g3 as well.....yet this dinky cable I had to buy at a rental c as r counter after forgetting my cord on a trip works perfectly. Some cables I bought at 5 below won't work at all....but worked fine on other phones.
Sent from my VS985 4G using XDA Free mobile app
318sugarhill said:
My Samsung charger cable does the slow charge thing on my g3 as well.....yet this dinky cable I had to buy at a rental c as r counter after forgetting my cord on a trip works perfectly. Some cables I bought at 5 below won't work at all....but worked fine on other phones.
Sent from my VS985 4G using XDA Free mobile app
Click to expand...
Click to collapse
Same here lol I have a really cheap POS one I bought at a gas station one day when I forgot mine and it works great... Just one of them things I guess
- Tapatalked from the G3
I'm using the stock cable but off my Macbook Pro usb 3.0 port. When using the phone it does not charge but actually drains the battery (very slowly). How do I determine if the phone is good to keep?
oconnell84 said:
I'm using the stock cable but off my Macbook Pro usb 3.0 port. When using the phone it does not charge but actually drains the battery (very slowly). How do I determine if the phone is good to keep?
Click to expand...
Click to collapse
Mine charges when connected to my MacBook Air.
Also depends on what you are doing on the phone. Get a high quality cable.

Battery drains while navigating and CHARGING?

How is this even possible? While using NAV, my G3 is plugged into the car charger is still decreasing in battery life. Albeit slower than when not charging, but it still goes down even though it is charging. What gives?
Using a charger bought at VZW.
Make sure the charger is 2.1 amp...if its a 1 amp, the combo of GPS, data, and screen on will still kill it.
SOCOM-HERO said:
How is this even possible? While using NAV, my G3 is plugged into the car charger is still decreasing in battery life. Albeit slower than when not charging, but it still goes down even though it is charging. What gives?
Using a charger bought at VZW.
Click to expand...
Click to collapse
Yup, totally depends on the charger. Some cheap ones are only .5A and most are 1A, which probably still isnt enough when using GPS and screen on.
SOCOM-HERO said:
How is this even possible? While using NAV, my G3 is plugged into the car charger is still decreasing in battery life. Albeit slower than when not charging, but it still goes down even though it is charging. What gives?
Using a charger bought at VZW.
Click to expand...
Click to collapse
Do yourself a favor and buy mandatory this quality accessories. After you do, forget your question
Car charger:
http://www.amazon.com/Portable-Dual...=1407899058&sr=8-3&keywords=anker+car+charger
USB charging cable:
http://www.amazon.com/2-1A-30PIN-Ch...=UTF8&qid=1407899014&sr=8-6&keywords=kopi+usb
czaplin said:
Do yourself a favor and buy mandatory this quality accessories. After you do, forget your question
USB charging cable:
http://www.amazon.com/2-1A-30PIN-Ch...=UTF8&qid=1407899014&sr=8-6&keywords=kopi+usb
Click to expand...
Click to collapse
How is an old iPhone charger going to help anyone with a G3? Also, what is "this quality"? I think you might've lost or misspelled a word there.
phobos512 said:
How is an old iPhone charger going to help anyone with a G3? Also, what is "this quality"? I think you might've lost or misspelled a word there.
Click to expand...
Click to collapse
Sorry, bad link.
Here's correct one:
http://www.amazon.com/gp/aw/d/B009Z...2e07d400f0894e43b48&pi=SS115#ref=pd_aw_sims_1
Sent from my VS985 4G using XDA Free mobile app
I had this problem starting all the way back on Galaxy Nexus - crappy chargers and cables do not provide enough power to run the phone and the screen. My research and trial and error on many chargers lead me to understand that not only do you need a good high power charger, you need a good cable too. I now run 18awg charge-only cables exclusively as well as a 2.1amp charger. This pair has worked on all my devices since including fast charging on my G2 and G3.
Note that a charge-only USB cable has the data pair shorted and will only work for charging - will not work for data transfer. However the wires inside are thick and work great cars or other situations where you don't need the cable for data.
This is what I use:
Cable
http://www.netimes.com/shop/microusb-charging-cable-black-d-d-shorted18awg100cm-p-3699.html
Charger
http://www.netimes.com/shop/dual-usb-car-charger-adapter-10a-21a-white-p-4810.html
This company is from Hong Kong, but they have pretty fast shipping. It is the only place where I can find (affordable) heavy gauge USB cables.
Same Issue
SOCOM-HERO said:
How is this even possible? While using NAV, my G3 is plugged into the car charger is still decreasing in battery life. Albeit slower than when not charging, but it still goes down even though it is charging. What gives?
Using a charger bought at VZW.
Click to expand...
Click to collapse
I had the same issue with a store-bought charger. It also depends on the amperage output of your vehicle's outlet as well.
If anyone is looking for one with a retractable cable, I bought this one:
http://www.amazon.com/EZOPower-Micr...=8-2&keywords=2.1+amp+usb+charger+retractable

Quickcharge Issues

Anyone else having any problems with charging? My supplied QC 3.0 charger has developed issues - it usually charges OK, but if it has been recently used it seems to completely stop working for a while. I think that's a problem with the charger rather than the phone because when it stops working it also won't charge other devices. I also have a problem with an Aukey QC3.0 power bank that I recently bought. It charges my phone fine if I turn off fast charging in battery settings on the phone, but if fast charging is on it only charges while the screen is on. As soon as the screen goes off, it completely stops charging (and the lock screen comes back on).
Both the above problems have occurred regardless of which ROM I have installed.
Edit: power bank is actually working now, but that might be because phone battery is already over 90% so it is not trying to draw fast charge levels of current. Will have to try again when the battery is below 70%.
Hello. My phone is also fast charging only while screen is off but it's rather normal. The first issue I did not encounter. I have so far only supplied charger. Of course quick charging works more efficiently at lower levels of battery. I have a USB meter that shows max about 21 Watts approx 7.8 V x 2.8 A.
Regards Filozof71
Sent from my Le X820 using Tapatalk
Filozof71 said:
Hello. My phone is also fast charging only while screen is off but it's rather normal. The first issue I did not encounter. I have so far only supplied charger. Of course quick charging works more efficiently at lower levels of battery. I have a USB meter that shows max about 21 Watts approx 7.8 V x 2.8 A.
Regards Filozof71
Sent from my Le X820 using Tapatalk
Click to expand...
Click to collapse
My phone is NOT fast charging with the screen off using the Aukey power bank.
kanagawaben said:
My phone is NOT fast charging with the screen off using the Aukey power bank.
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Click to collapse
Oh, I missed this info. How do you recognize fast charging? I observed that it works a little bit differently while in TWRP, less aggressive.
Regards Filozof71
Sent from my Le X820 using Tapatalk
Don't think there is any way to know what kind of charging it is doing on this phone (unlike my Zenfone 2, which tells you both on the status bar battery icon and with a verbose message on the lock screen). My problem with the power bank is that if fast charging is enabled in the phone settings, it won't charge at all once the screen goes off.
Just confirmed that with the phone battery at about 40% and fast charging enabled, the power bank is unable to charge the phone (stops a couple of seconds after the screen goes off). I tried charging my Zenfone 2 with it (QC 2.0 compatible) and it fast charges properly. This suggests there is some problem with my phone (or the Le Max2 generally?) rather than the power bank
kanagawaben said:
Just confirmed that with the phone battery at about 40% and fast charging enabled, the power bank is unable to charge the phone (stops a couple of seconds after the screen goes off). I tried charging my Zenfone 2 with it (QC 2.0 compatible) and it fast charges properly. This suggests there is some problem with my phone (or the Le Max2 generally?) rather than the power bank
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Click to collapse
Looks like LeEco problem since You also marked Aukey does not work.
Sent from my Le X820 using Tapatalk
I'm having The same issue, when i lock The screen, The phone stop charging. But if i hold on. Charging work normal, someone can help me?
Hello. Did you see official Qualcomm list of QC 3.0 certified devices? Interesting...
Regards Filozof71
Sent from my Le X820 using Tapatalk
Filozof71 said:
Hello. Did you see official Qualcomm list of QC 3.0 certified devices? Interesting...
Regards Filozof71
Sent from my Le X820 using Tapatalk
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Click to collapse
Not seen it, but I'd hazard a guess that our phone is not on the list? Anyway, I think the included LeEco charger (mine at least) has issues, and given the fast charging incompatability with my Aukey power bank, I am thinking the QC 3.0 charging on the phone is not following standards correctly. My after-market QC 2.0 charger, however, works flawlessly with the phone - so if buying after-market chargers or power banks I guess it is safer to stick to QC 2.0 certified ones instead of 3.0, or alternatively just stick to regular slow charging.
kanagawaben said:
Not seen it, but I'd hazard a guess that our phone is not on the list? .
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Click to collapse
Unfortunately you are wrong. My phone Le 2 Max is certified QC 3.0 among very few devices. Majority is still QC 2.0.
Regards Filozof71
Sent from my Le X820 using Tapatalk
kanagawaben said:
Not seen it, but I'd hazard a guess that our phone is not on the list?.........
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Click to collapse
Unfortunately, you are right, probably the phone only supports Quick charge 2.0, in web specifications I only found QC 2.0 support. But this don't explain this problem with stop charging when screen goes off
So, I have one Aukey charger compatible with 3.0 too, and I am waiting only my le max 2 arrive for test. In next 10 days I will back here and tell you what happened!
Filozof71 said:
Unfortunately you are wrong. My phone Le 2 Max is certified QC 3.0 among very few devices. Majority is still QC 2.0.
Regards Filozof71
Sent from my Le X820 using Tapatalk
Click to expand...
Click to collapse
Hmm. Interesting. Something isn't right anyway. Oh well.
Hi again. Now muy phone not charging normaly, when i connect The charger The phond looks like is charging but so slow 80%. On 5h :S and no work all time, i need put out charguer and put un again. I tried with 2 charguers, original and aukey qc 3.0 same results
Did you guys ever suspect the cable?
My wife's S6Edge+ had suddenly started to charge very slow with the original charger and cable. After reading on the specific forum, few others were complaining of the same and as a result, she changed the cable with an older Sony cable which worked perfectly. No mater what, the original cable was charging the phone slow if not fast charge which was fast as before.
valy_cta said:
Did you guys ever suspect the cable?
My wife's S6Edge+ had suddenly started to charge very slow with the original charger and cable. After reading on the specific forum, few others were complaining of the same and as a result, she changed the cable with an older Sony cable which worked perfectly. No mater what, the original cable was charging the phone slow if not fast charge which was fast as before.
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Click to collapse
Hello. I have the USB extension cable then USB meter, then USB cable. I use new USB bought on Ali. All the chain works OK with QC.
Regards Filozof71
Sent from my Le X820 using Tapatalk
valy_cta said:
Did you guys ever suspect the cable?
My wife's S6Edge+ had suddenly started to charge very slow with the original charger and cable. After reading on the specific forum, few others were complaining of the same and as a result, she changed the cable with an older Sony cable which worked perfectly. No mater what, the original cable was charging the phone slow if not fast charge which was fast as before.
Click to expand...
Click to collapse
Thx, i justo bought 1 new cable con amazon. Tomorrow will recibe and try.
valy_cta said:
Did you guys ever suspect the cable?
My wife's S6Edge+ had suddenly started to charge very slow with the original charger and cable. After reading on the specific forum, few others were complaining of the same and as a result, she changed the cable with an older Sony cable which worked perfectly. No mater what, the original cable was charging the phone slow if not fast charge which was fast as before.
Click to expand...
Click to collapse
I have the problem with the power bank whether I use the cable that came with the phone or the cable that came with the power bank. Neither will charge the phone with quick charging enabled and the screen off.
The longer the cable, the less power will perform.. thats useally the case.
same with wire thickness in the cable, some of these extreme cheap cables on AliE got such crappy thinmetal-wires in the cable that it can not transfer all that power it should and will act like a bottleneck.
*the same with these intelligent powercables, that either cuts off when phone is filled, or show a sign like an light-diode in USB plug that are changing colors to tell that the battery is full. (close to all of such intelligent cables ewen some of the high qual-ones, are extrenely limited in power-drawing and most cant ewen manage 1.5amp in std 5v USB and most are under 1.0amp in the amount of power these cable can deliver, and often some plug-cirquit inside the cable there is limiting the amp quite a bit, and so the cable is able to sense when the battery if full and give signal.
Same with those cables where there is an ampmeter/voltmeter on the cable itself, those cables is also strugling to deliver more then +1amp.
that is all in regards tojust plain 5v and it just get ewen worse when trying to perfom quick-charge currents..
Not sure what cable your trying on, but if your going around the original, its good money to purchase an good plain QCvalid USBcable without features from an brand there is known for being able to deliver the power, the 18watt QC in theory can perform is quite a bit and need some metalwiring for the power to flow .
Not charging at all
Hi, I have a problem with charging my Lemax 2. I found similar issues described on other forums, even on youtube.
Long story short: it won't charge, LED blinks twice when on charger, then stops.. Tried different cgargers, cables- nothing works.
Any ideas?

weird charging problem on Galaxy Note 20 5g SAM-N981B

Hi
It has been a few days that i have faced a weird problem with my phone.
My phone suddenly stopped charging with fast chargers and only works with super fast chargers.
When connected to any charger other than super fast charger, the charge drops instead of rising. When i connect a super fast charger, it charges fine. But sometimes gets 95% and some times gets 100%. If i reconnect the superfast charger, the phone wont even show charging. Must switch to normal charger or wireless charger and switch back to super fast charger in order for it to work.
Being on or off does not affect the results.
Wireless charging works fine.
Due to the conflicting results, I can not guess the cause of the problem.
Whether the problem is from the battery, Main board, charging socket, or software or malware, i cant figure it out.
Any suggestions?
Best I can suggest is clean your type c port with a sewing needle. These ports get trash in them everyday very easily then packed in.
The bottoms of these ports are metal not plastic. Shiny silver metal. If it's dark black or anything other. Its dirty and your cord is not being inserted all the way due to the trash compacted in. I have seen this on a regular basis and 9 out of 10 times this is the cause
alijj88 said:
Hi
It has been a few days that i have faced a weird problem with my phone.
My phone suddenly stopped charging with fast chargers and only works with super fast chargers.
When connected to any charger other than super fast charger, the charge drops instead of rising. When i connect a super fast charger, it charges fine. But sometimes gets 95% and some times gets 100%. If i reconnect the superfast charger, the phone wont even show charging. Must switch to normal charger or wireless charger and switch back to super fast charger in order for it to work.
Being on or off does not affect the results.
Wireless charging works fine.
Due to the conflicting results, I can not guess the cause of the problem.
Whether the problem is from the battery, Main board, charging socket, or software or malware, i cant figure it out.
Any suggestions?
Click to expand...
Click to collapse
Hi, did you find a resolution to this?
My Samsung Note 20 is doing the exact same thing.
It will not charge with the normal charger.. I have to first charge it a bit with the wireless charger and then with the normal charger. As of this morning, the wireless charging is also intermittent.
Thanks.
msb111 said:
Hi, did you find a resolution to this?
My Samsung Note 20 is doing the exact same thing.
It will not charge with the normal charger.. I have to first charge it a bit with the wireless charger and then with the normal charger. As of this morning, the wireless charging is also intermittent.
Thanks.
Click to expand...
Click to collapse
Hello
Unfortunately, I have found no solution for this. I have sent the phone to service center. Since they have not said anything yet, i guess it is not a software or even a known problem. It is definitely a serious hardware problem.
I am having the exact same issue here as well. I plug it into a normal charger and the battery continues to drain. A lightening charger is the only thing giving it juice.
Solissfiend said:
I am having the exact same issue here as well. I plug it into a normal charger and the battery continues to drain. A lightening charger is the only thing giving it juice.
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Click to collapse
Will it recognize the super fast charger when you immediately disconnect and reconnect it?
alijj88 said:
Will it recognize the super fast charger when you immediately disconnect and reconnect it?
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Click to collapse
Yes superfast charging is not the problem at all. Its when I plug in a normal charger, it will say its charging but it doesnt.
Solissfiend said:
Yes superfast charging is not the problem at all. Its when I plug in a normal charger, it will say its charging but it doesnt.
Click to expand...
Click to collapse
Well if factory resetting does not solve the problem, don't waste your time for a solution. It is a faulty hardware. Go to Samsung service center instead. The will probably replace the motherboard or the phone.

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