How do I test Quick Charge 3.0? - LG V20 Questions & Answers

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
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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?
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
Any recommendations on the best usb c cable for my LG V20. Some I have purchased do not quick charge as described.

Related

Battery Charging taking too long!

The S2 takes forever to charge the battery. Coming fron the iphone 4 i suspect this takes ay laeast twice as long to charge!
Considering the battery performance isnt that great, this is a double whammy!
What do you guus think?
Sent from my GT-I9100 using Tapatalk
Yeah, I noticed the same thing. I'm always charging it when I'm at home to keep it fully charged, in case I'm going out.
charging takes me about 3hours (from empty). It is stanrard time
Same here for charging. Between 3 & 4 hours. But battery life is getting better especially if i disable 3G and wifi
Sent from my GT-I9100 using XDA App
Im using nokia charger 1.2A and HTC charger 1A and also i have 0.7A all of them takes about 3 hours may be hardware bug?
I've been using a BB charger for it, and thought maybe that was the reason. Glad to know it isn't.
Sent from my GT-I9100 using Tapatalk
Yep, I confirm.
Charging takes around 3 hours.
I can use it almost 48 hours before it needs to be charged again. So it is not really annoying.
Stock SGS 2 with official battery charger and a full drained empty battery 3.5 hours to charge to 100% .
jje
tanseerj said:
The S2 takes forever to charge the battery. Coming fron the iphone 4 i suspect this takes ay laeast twice as long to charge!
Considering the battery performance isnt that great, this is a double whammy!
What do you guus think?
Sent from my GT-I9100 using Tapatalk
Click to expand...
Click to collapse
About 3 hours here which is fine, charging from the supplied charger connected to electricity mains. Are you charging via the USB connector? It will take a lot longer, something called trickle charge or something like that.
JJEgan said:
Stock SGS 2 with official battery charger and a full drained empty battery 3.5 hours to charge to 100% .
jje
Click to expand...
Click to collapse
Same here... It takes too long to charge...
Same here... It takes too long to charge...
No it takes the normal time but if its to slow for you dont drain it or sell it .
jje
I noticed this when my brother bought the same phone. His takes a ridiculous amount of time to charge, maybe 1% per 10 mins or so and it gets really hot while doing so.
Mine on the other hand doesn't get hot at all and charges at least 3 times faster than his.
please state charge state, ages, fast normal etc.
firmware and revison thanx
The charger shipped with my S2 has only 700mA...
especially if you are using the phone (worst: gaming) while charging it seems to get never finished . I guess the current drain doesn't left much for the charging.
So i'm using my old HTC-chargers (one AC=>USB and AC=> MicroUSB) witch both supplies 1000mA.... ~43% more in theory
Hard to say how big the advantage is in fact, but it makes a difference.
Also keep in mind, that a standard USB-Port supplies max. 500mA, depending on other USB-devices even much less. I also read that the charging result is "better" if you not using it in the meantime.
You can buy USB-Chargers up to 2100mA (e.g Amazon), but i have doubts that this will be improve the charging time because on the type-label behind the battery is written Rated : 3,7V-1000mA. Even more current wouldn't not damage the device (afaik!!!), the device or the battery could not charge faster.
Maybe somebody knows about what is meant by the the 1000mA exactly. Would be nice if the device could be charge a little bit faster.
Otherwise i am going to buy a 2nd battery with an external charger.
greetings
I found this on Android Forum
lotus49
USB charging is slow on the S2 as it uses trickle charging
"Trickle" is an exaggeration.
The phone can tell whether it's connected to USB or a mains charger. If the latter, it limits charge current to 650mA. If the former 400mA.
It will charge faster on the mains but not loads faster.
Click to expand...
Click to collapse
SLaRe said:
Same here... It takes too long to charge...
Click to expand...
Click to collapse
I usually sleep more than 3.5 hours per day so I don´t see any problem in the charging time
JJEgan said:
No it takes the normal time but if its to slow for you dont drain it or sell it .
jje
Click to expand...
Click to collapse
My other cell phones are fully charged in 2 hours, more or less. And yes, I'm considering selling it, because I like to use my gadgets and the SGSII doesn't admit an intensive use without running out of battery, unless you have a second battery.
rj3005 said:
I usually sleep more than 3.5 hours per day so I don´t see any problem in the charging time
Click to expand...
Click to collapse
Yeah, I do sleep more than 3.5 hours per day and I try to charge it every night, but the problem is when the phone runs out of battery in the middle of the day and you don't have 3.5 to spend in charging it fully.
I think the iphone 4 is only a 1420Mah battery if I remember correctly while ours is 1650. Sure, it takes perhaps another hour to charge but I don't find it a big deal. It does appear that the first 50% charges faster then the second half as well but that could just be my imagination.
I have read that Samsung phones charge slower so that the battery life will be longer than that of those other phones such as HTC where the phone charges a lot faster. I'd rather get another year out of my battery and it take longer but do admit 3.5 hours does seem like a while.
this topic has been covered. teh SGS2 battery driver is capped at 650 mA for wall charging, 450 mA for USB charging. this code resides in the battery driver.
someone could compile a new kernel with this value raised. other phones like the nexus one charge at 980 mA for wall charger, 480 for USB.
samsung capped charge current, likely for heat issues, nobody really knows.
same. take long time to charge and heating if charge n gaming. the hottest spot at camera side
Sent from my GT-I9100 using XDA Premium App

[Q] Why does the S4 i9505 charge so slow ?

So is it me or does the s4 charge really really slow ?
is this the same for everyone ?
any fixes ?
gremlininthesystem said:
So is it me or does the s4 charge really really slow ?
is this the same for everyone ?
any fixes ?
Click to expand...
Click to collapse
How long does your phone charge from low to full? Mine is around 2 and 1/2 hours maybe? Im using my Nokia 808s USB charger though. havent tried charging it with the included white charger, cable is too short for me.
gremlininthesystem said:
So is it me or does the s4 charge really really slow ?
is this the same for everyone ?
any fixes ?
Click to expand...
Click to collapse
Hi,
What is your charge time?
Mine is 2 to 2 and a half hours.
Which battery and/or charger are you using? After coming from the S2 I have noticed a large decrease in charging time with my S4, so this is very surprising to me.
Well I tried charging from my computers use port at work today only rise 20% in 2 hours
Sent from my GT-I9505 using xda app-developers app
gremlininthesystem said:
Well I tried charging from my computers use port at work today only rise 20% in 2 hours
Sent from my GT-I9505 using xda app-developers app
Click to expand...
Click to collapse
Well, laptop's USB port is not a charger - it's too weak for such a large battery.
gremlininthesystem said:
Well I tried charging from my computers use port at work today only rise 20% in 2 hours
Sent from my GT-I9505 using xda app-developers app
Click to expand...
Click to collapse
...*facepalm*. You're not using original charger and you're complain that the one you use doens't works so well? Do you know that original charger is pulling 2000mA out, while your usb-port is pulling between 300mA and 500mA (depends if it front or back usb-port and the quality of usb port). Do the math, 2600mAh battery and 300mA / h. Full charge should take: 2600:300 = more than 8.5 hours.
With original charger S4 recharges from 0 to 100 in 1h 49minutes. If you take a solar charger it will charge even slower (like 48 hours for 0-100%).
Next time try to use your brain before complaining.
oliver005 said:
...
Next time try to use your brain before complaining.
Click to expand...
Click to collapse
no need to be rude. Not everyone knows that USB voltage varies.
Zymesh said:
...Im using my Nokia 808s USB charger though. havent tried charging it with the included white charger, cable is too short for me.
Click to expand...
Click to collapse
Your Samsung power brick has the cable physically attached to it? If not, you can just use a longer cable with the Samsung power supply.
The included power supply is 2 Amps, whoever is getting long charging times, make sure you use either the original Samsung power supply, or comparable in amperage supply.
Mine charges in 2 and a half hours.
Mine takes 2 to 2.5 h to charge from 0 to 100 percent. You should only use the new white charger, it's more powerful than the black one from s3, it's output is 2.0A ,old one is only 1.0A. Newer use other chargers as they may mess up your battery or phone.
Sent from my GT-I9505 using xda app-developers app
kreoXDA said:
Your Samsung power brick has the cable physically attached to it? If not, you can just use a longer cable with the Samsung power supply.
The included power supply is 2 Amps, whoever is getting long charging times, make sure you use either the original Samsung power supply, or comparable in amperage supply.
Mine charges in 2 and a half hours.
Click to expand...
Click to collapse
I have to check the amps but based on google the Nokia Charger is at 1.3 Amps. I need to remind myself to switch the short Samsung to longer Nokia cables.
Is it safe to get a higher Amp charger, the one that the iPad uses to charge my S4? No drawback execpt for a faster charging time right?
Zymesh said:
I have to check the amps but based on google the Nokia Charger is at 1.3 Amps. I need to remind myself to switch the short Samsung to longer Nokia cables.
Is it safe to get a higher Amp charger, the one that the iPad uses to charge my S4? No drawback execpt for a faster charging time right?
Click to expand...
Click to collapse
Take it this way, grilling meat takes for example 45minutes to cook completely. You take it to some powerful furnace like 2000degrees for 5minutes then what do you expect from it to give you back? Well cooked meat or some burned meat outside and maybe raw inside?
Sent from my GT-I9100 using Tapatalk 2
put it this way... the s3 comes with a 700ma charger. it charges a bit slow. and has a 2100mah battery.
the s4 comes with a 2 amp charger. thats 2000ma. it doesnt charge slowly if you use this charger. i personally am going to pop it on this charger when i get home from work and then keep it on my 700ma charger overnight... no reason to waste that powerful output, it will simply waste electricity.
make sure:
1. you use the charger that came with it
2. you use a cable thats as long as (or shorter than) the stock charging cable. longer usb cables tend to charge the phone slower.
also keep in mind usb ports charge any phone slowly. the s4 will charge even slower on them because the battery is oversized compared to most.
I'm using note 2 charger and if I surf Web while charging, literally it is not charging at all.. battery is not going up or down.. Note 2 was not like this.. i could charge battery even if I play 3d game..
Sent from my GT-I9505 using Tapatalk 2
u r right. but may and im pretty sure its just a software issue.
---------- Post added at 09:02 PM ---------- Previous post was at 08:59 PM ----------
fade2green514 said:
put it this way... the s3 comes with a 700ma charger. it charges a bit slow. and has a 2100mah battery.
the s4 comes with a 2 amp charger. thats 2000ma. it doesnt charge slowly if you use this charger. i personally am going to pop it on this charger when i get home from work and then keep it on my 700ma charger overnight... no reason to waste that powerful output, it will simply waste electricity.
make sure:
1. you use the charger that came with it
2. you use a cable thats as long as (or shorter than) the stock charging cable. longer usb cables tend to charge the phone slower.
also keep in mind usb ports charge any phone slowly. the s4 will charge even slower on them because the battery is oversized compared to most.
Click to expand...
Click to collapse
wow... what a science expert... first time i heard that longer cables charge slower... LOL
u funny dude.. there is no such thing like that buddy!
its just a software issue. S4 is just released and the chipset is very new. u people should wait for sometime...its a matter of few firmware releases from samsung for S4 and all the issues will be resolved. just like the latest issue resolved the over heating issues.
gremlininthesystem said:
Well I tried charging from my computers use port at work today only rise 20% in 2 hours
Sent from my GT-I9505 using xda app-developers app
Click to expand...
Click to collapse
:laugh: u made my day bro :good:
gremlininthesystem said:
Well I tried charging from my computers use port at work today only rise 20% in 2 hours
Sent from my GT-I9505 using xda app-developers app
Click to expand...
Click to collapse
USB is too low a voltage to charge a modern smartphone all that quickly, my S4 take 2.5 hours roughly to full charge on the stock charger.
androidizen said:
USB is too low a voltage to charge a modern smartphone all that quickly, my S4 take 2.5 hours roughly to full charge on the stock charger.
Click to expand...
Click to collapse
Voltage is exactly the same. It's amperage that you're thinking of.
Sent from my Nexus 7 using Tapatalk HD
Anyone tried using phone while charging? Mine charges 1% per hour while surfing web
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reservin said:
Anyone tried using phone while charging? Mine charges 1% per hour while surfing web
Sent from my GT-I9505 using Tapatalk 2
Click to expand...
Click to collapse
Im using the white 2amp charger. It doesnt go down even when watching movies. Are you using the charger that came with your s4? There might ba a problem with your s4?
Sent from my GT-I9505 using Tapatalk 2

lMO battery life doesn't seem good cause fast charge doesnt really fully charge phone

I went back to the slow charger for overnight charging and battery life has been pretty darn good. When I use the fast charger it says it gets to 100 quickly but I feel it drops down way faster. Anyone else feel this way?
yeah, same happened with the note 4. I only use the fast charger when i need a quick charge. I use my old note galaxy tab s regular charger overnight.
Sent from my Moto X Pure Edition
Yeah. Fast chargers are great (the one included with MXPE is superb) but they're not meant for overnight-leave-your-phone-on-the-charger-for-6-or-7-hours-while-you-sleep type charging. Technically, the less you leave your phone on ANY charger after it reaches 100% the better it is for your battery.
EdCarden said:
Yeah. Fast chargers are great (the one included with MXPE is superb) but they're not meant for overnight-leave-your-phone-on-the-charger-for-6-or-7-hours-while-you-sleep type charging. Technically, the less you leave your phone on ANY charger after it reaches 100% the better it is for your battery.
Click to expand...
Click to collapse
This used to be true, but I thought it's been debunked with current battery technology. Recent source anywhere?
No source... IMO. (And the fellow XDA members that replied to this thread)
stu5797 said:
No source... IMO. (And the fellow XDA members that replied to this thread)
Click to expand...
Click to collapse
He was asking for the source saying it is better to disconnect your phone once it gets 100% battery...
It's been proven it has no ill effect over time, and after charging to full it will stop charging until it discharges enough to need a trickle charge, at which point it will trickle back up to 100% and repeat the process.
If you have ever had a battery pack shut itself off after charging your phone to 100%, it's because it finished charging and didn't discharge quickly enough before the battery pack shut off.
Sent from my XT1575 using Tapatalk
I never use my rapid/turbo/quick charger (or whatever it's called). I only use the regular old overnight charger. I get great battery life. I know for a fact that heat is bad for all electronic components including batteries as can be read about in numerous articles on the subject. However, I also wonder about rapid charging to 100% why would the charge not last as long? Unless something that is reading the battery capacity is not accurate when the battery has been rapidly charged?
I don't have any scientific evidence. I just find I get better battery life using the old charger and noticeably worse battery using the rapid charger
I use the rapid charger and the battery life is the same with or without it.
EdCarden said:
Yeah. Fast chargers are great (the one included with MXPE is superb) but they're not meant for overnight-leave-your-phone-on-the-charger-for-6-or-7-hours-while-you-sleep type charging. Technically, the less you leave your phone on ANY charger after it reaches 100% the better it is for your battery.
Click to expand...
Click to collapse
I agree with this, my phone was on 15% and I was about to fall asleep so I left it plugged in for about 9 hours, and it was almost dead with 2hrs SOT and 5 hours after being unplugged. But if I unplug it when it's at 80-90% it lasts me almost all day and into the night.
Sent from my XT1575 using Tapatalk
razieltov said:
I use the rapid charger and the battery life is the same with or without it.
Click to expand...
Click to collapse
Same here. Rapid charge is awesome, and my battery life is very good as a business user.
I agree that fast charging is great for a temporary quick charge but not good using it to get your phone to 100%

LG G6 Charger

The Charger that comes with the box supports Quick Charge 2.0 or 3.0?
natukiss said:
The Charger that comes with the box supports Quick Charge 2.0 or 3.0?
Click to expand...
Click to collapse
QC 3.0 For Sure !
Uri.S said:
QC 3.0 For Sure !
Click to expand...
Click to collapse
It's normal that full charge (0 to 100) takes like 1 hour and 40+ minutes with QC 3.0?
QC 3.0 didn't promise 50% in half an hour?
Something is not right here I guess..haha
From what I've heard I'm pretty sure it's QC2 actually.
It'd be interesting to see some comparisons by someone who already have a QC3-charger. See how much you'd gain by switching chargers.
natukiss said:
It's normal that full charge (0 to 100) takes like 1 hour and 40+ minutes with QC 3.0?
QC 3.0 didn't promise 50% in half an hour?
Something is not right here I guess..haha
Click to expand...
Click to collapse
I'm pretty sure it is QC3. I had mine plugged in for about 20 minutes this morning and went from 42% to 71%. That's pretty damn quick. I think it could do 50% in 30 minutes if you're starting from near 0%.
Its not a linear charge time from 0 to 100% though because it will slow down as you get closer to 100%.
This is a larger battery so I would imagine it would take longer to charge.
Sent from my LG-H872 using Tapatalk
is there a way to revert to normal charging? Thanks.
Sent from my LG-H870DS using Tapatalk
tagacapiz said:
is there a way to revert to normal charging? Thanks.
Click to expand...
Click to collapse
Buy a charger that doesn't support QC I suppose. Why though?
I'm a battery miser, lol. I'm inclined to think that reverting to normal charging earns me more cycles. This is mostly speculative though, so feel free to set me straight.
Sent from my LG-H870DS using Tapatalk
tagacapiz said:
I'm a battery miser, lol. I'm inclined to think that reverting to normal charging earns me more cycles. This is mostly speculative though, so feel free to set me straight.
Sent from my LG-H870DS using Tapatalk
Click to expand...
Click to collapse
Nope, you're right, Quick Charge ruins battery on long terms, that's why with both my G5 and G6 i've always used my G2 charger 5V/1.8A, i use QC only if needed
Quick charge ruins batteries? Interesting. Where is the evidence to support this? I would rather charge slow of this is the case.
Sent from my LG-H872 using Tapatalk
skyfox99 said:
Quick charge ruins batteries? Interesting. Where is the evidence to support this? I would rather charge slow of this is the case.
Sent from my LG-H872 using Tapatalk
Click to expand...
Click to collapse
This is the most scientifically accurate article about it
http://www.desy.de/news/news_search/index_eng.html?openDirectAnchor=763
It's not that in 1 one month of quick charge you'll notice something, but if you plan to keep the device for years it may be a good idea to use it only when needed, it just accelerate the normal battery degradation.
Killua96 said:
This is the most scientifically accurate article about it
http://www.desy.de/news/news_search/index_eng.html?openDirectAnchor=763
It's not that in 1 one month of quick charge you'll notice something, but if you plan to keep the device for years it may be a good idea to use it only when needed, it just accelerate the normal battery degradation.
Click to expand...
Click to collapse
Hmm I thought people already knew this, it's been established for a while https://www.sciencedaily.com/releases/2015/04/150414094117.htm
I never use QC unless I definitely need it, more for peace of mind than anything.
All the articles I've read say there is some degradation using fast charging but the effect is negligible for the most part. Still interesting enough and I mostly use wireless charging so I'm glad that will actually extended battery life. As happy as I am with this phone it'll probably be a keeper for the next few years unless the V30 is something extraordinary.
Sent from my LG-H872 using Tapatalk

Charging speed

To power up, you consume Red Bull. But your phone just needs its adaptive fast charger. Rate this thread to express how quickly the Samsung Galaxy Z Fold 2 can charge. A higher rating indicates that it charges extremely fast.
Then, drop a comment if you have anything to add!
My phone arrived with 54% charge. It took about 40min to charge to full. Will do some more complete testing over the next few days.
The charge speed is something im a bit concerned about. I've noticed charging while the phone is on significantly slows down the charging process. To the point where 10 minutes went by on "super fast charging" and the phone only increased 1% in charge. The minute I laid the phone down screen off and the charging went significantly faster.
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Yes because if your using the phone or the phone screen is on your consuming battery life while your charging so it's going to be slower charging than if the screen was off.
seanbwoi said:
Yes because if your using the phone or the phone screen is on your consuming battery life while your charging so it's going to be slower charging than if the screen was off.
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The issue i have is my note 10+ didn't have this issue nor any phone I've ever used. I could be gaming on my note and it would charge normally.
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Didn't the note 10+ have a 45 watt charging right? If you had the charger you probably wouldn't notice it
8% to a full charge took 1hr 15min. Haven’t tried charging while using the device at the same time yet.
JSK0703 said:
8% to a full charge took 1hr 15min. Haven’t tried charging while using the device at the same time yet.
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If you end up trying it, post your results here please, I'm quite curious. Thanks!
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desantim said:
If you end up trying it, post your results here please, I'm quite curious. Thanks!
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I tried a quick test by running the battery down to 90% and then launching a game on the big screen. (Clash Royale) Plugged in the charger while playing and it topped off in just a few minutes. Going to run it down to 50% tonight and repeat the test.
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Repeated the test, this time I had the battery at 55%. Played WGT Golf while charging. Default settings which had screen brightness are 30%. Battery topped off in 46 min.
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JSK0703 said:
Repeated the test, this time I had the battery at 55%. Played WGT Golf while charging. Default settings which had screen brightness are 30%. Battery topped off in 46 min.
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Thank you for the tests, I'll have to take a look and see if it's just me, the charger or the phone.
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Charging is not that fast and im using the 40w samsumg charger
xavierxxx2p said:
Charging is not that fast and im using the 40w samsumg charger
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The phone only charges at 25 watts max
For some reason my phone is taking 6hrs to fully charge from zero on the Samsung fast charging dual pad. What is going on?
I hooked up my USB c gizmo.... only saw max 18w charging using a variety of cables and chargers with fold 2. I'm coming from a note 10+ where I saw 45w max. What gives?
lynseyw said:
For some reason my phone is taking 6hrs to fully charge from zero on the Samsung fast charging dual pad. What is going on?
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Has the charging pad been used to charge other devices and worked as it should? Is the pads own plug and cable being used as they could determine the charge speed too.
On the Fold 2, is fast wireless charging enabled? If you go to the Battery settings in Device Care at the bottom there's Charging. Make sure both Fast Charging and Fast Wireless Charging are on. You can schedule the fast wireless charging to turn off at night so it charges more slowly and, if the charger is compatible, the charging light dims and the cooling fan doesn't turn on.
I only charge wirelessly using the Samsung 15w wireless charging stand and have the Fold 2 scheduled to turn off Fast charge at night. This turns off the chargers fan and dims the light.
All of that is checked. My note 10+ was fine. This is slow as ****. Not the pad. Watch does fine etc. It charges at 12w. Oh well. I guess if I want it fast I'll just have to plug it in.
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lynseyw said:
All of that is checked. My note 10+ was fine. This is slow as ****. Not the pad. Watch does fine etc. It charges at 12w. Oh well. I guess if I want it fast I'll just have to plug it in.
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I have the same issue. Wireless charging has been abysmal at best.
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Glad it's not just me. Still love the phone. I usually charge it when I'm sleeping so it's fine. Might have to give it a refresh cable charge before bed so it's not at zero when I go to bed.
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lynseyw said:
Glad it's not just me. Still love the phone. I usually charge it when I'm sleeping so it's fine. Might have to give it a refresh cable charge before bed so it's not at zero when I go to bed.
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It's definitely a new experience for me with the charging. I came from a oneplus 7 pro to the note 10+ to this and those could go from dead to full in under 40 minutes. This phone is much slower charging overall. I Def. Don't regret buying it, i just wish it came with a cheap case to get me by until good ones were out and the charging was on point.
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