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Hi.
I have owned my SM-T700 for about a year now and its a beautiful tablet! But after updating my firmware to 5.0.2, i have had a problem that really messes up my time with the tablet.
My tablet has slow charging. Like extremely slow. After the update, it usually took around 9 hours to charge completely when at around 30% of battery. Now when I charge it, It only charges around 5% per hour!
I used the app called Amperes to measure my charging rate and it was at 750mA but then dropped to 30mA. I tried resolving the issue by switching to 4.4.2 but I cannot find the XAC version of it unfortunately. Also,
I am not using the samsung charger that came with the device, I am using the samsung charger for my broken s3 but it says that they take in the same amount of mA. I also tried with my cousins tab s charger to no avail.
Thanks! I would be grateful for any help!
Are you using original or hi-quality cables with a real 2.0 amp charger?
I've a Tab S 10.5 LTE updated to Lollipop from the first day I bought it, so I'm not sure if the charging speed differs from KitKat.
When using the original 2.0 amp charger and cable I've noticed that the charge is slower while I'm activelly using the tablet, but that means about 12% hour rate.
If I try with another Samsung charger rated at 0.7 amp it can recharge the tablet slowly and only when it's idle, or just slow down the battery discharge if I'm activelly using the tablet.
I consider this normal, as the tablet can easily surpass 1 amp discharge rate when the display, cpu, radios are all busy.
To get full charge rate of 1800mah , I normally see 1500mah/1600mah you need to use the original Samsung 5.3v 2amp charger and original cable as a lot of third-party charger will only charge slowly as the Tab S cannot recognize the charger is powerful enough, so it only uses a slow charge so not to damage the charger, even with the original charger after the battery reaches 80% fast charge stops and it is normal for the charger to use lower and lower ma as it reaches 100%
John.
Has LG added real quick charge 2.0 to lg g4 in android 6.0 (Marshmallow)?
I know that officially, the phone has qc 2.0 but in real life the results are even not close to real QC 2.0 (in lollipop).
Can somebody who has android 6.0, check is?
QC 2.0 is within the chipset, you need QC Charger to check if it fast charger the phone or not. Give it half and hour to see how it turns out and compare it with another charger.
As per QC2.0 standards you should be getting 2% per minute for the first 60% (i.e. 0-60% in 30 minutes) and will then slow down. Like most other people here I only get about 1.2% per minute, which is under 40% in 30 minutes, using Tronsmart QC2.0 charger.
This is on Lollipop. Wonder if anything changed on Marshmallow.
iKillCypher said:
QC 2.0 is within the chipset, you need QC Charger to check if it fast charger the phone or not. Give it half and hour to see how it turns out and compare it with another charger.
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Actully, it does support, but probably LG's software disable is in 5.1.
The problem is that I do not have 6.0 to check is they able in a new 6.0 Marshmallow.
shady121 said:
Actully, it does support, but probably LG's software disable is in 5.1.
The problem is that I do not have 6.0 to check is they able in a new 6.0 Marshmallow.
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Click to collapse
You can install Marshmallow if You are using H818 Version Phone.Please check my below Post.
http://forum.xda-developers.com/showpost.php?p=64112578&postcount=1288
it seems to work on my 818N(HKG) running V20a (M), as on lock screen I get a "fast charging" notification (using Asus charger that has a high voltage mode).
Your 2% per minute rule work only on the lower end of the battery: capacity % bits are longer to get on the last end of the charge, so when you test your charging speed you need to make sure you test on the low percentage levels, as this is where the quick charging takes most of its effects (go from 0 to 60% in 30 minutes, but the last bit lasts about an hour or more if you read this http://www.tomsguide.com/us/fastest-charging-phones,review-2995.html).
To be explicit, G4 takes 1h02 to reach 80%, then another 34 minutes before reaching 100% charge
you can google about charging profile if you are interested in the topic, or read some tutorials like this one http://www.ti.com/lit/an/snva557/snva557.pdf
If you start from say 10%, how much charge does it gain in the first 30 minutes? That's all that matters.
I get only 36% which is disappointing considering there are HTC Ones that reach 60% in the same time, although the battery is slightly lower at 2840mah.
And Qualcomm's specs indicate a 3300 mah battery should reach 60% in 30 minutes.
there might be a problem with your charger (as in AC wall plug), as Tom's testing from 5 and reaches 42% in 30 minutes.
Or simply that your unit does not fast charge ? What does your lock screen say? Charging or fast charging?
It does support in lollipop, just no quick charge notification in the phone
Sent from my LG-H815 using XDA Free mobile app
ManuLM said:
there might be a problem with your charger (as in AC wall plug), as Tom's testing from 5 and reaches 42% in 30 minutes.
Or simply that your unit does not fast charge ? What does your lock screen say? Charging or fast charging?
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On Lollipop it does not say fast charging even if it is. From Marshmallow I believe it indicates fast charging on notification.
doublewong said:
It does support in lollipop, just no quick charge notification in the phone
Sent from my LG-H815 using XDA Free mobile app
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It's not, the difference if only 23 percent. Moreover, the voltage should increace from 5v to 9v or 12v but in LG g4 even with QC 2.0 charger, the voltage isalway 5v.
What you get from your QC charger is just 2 amp instead 1.8 amp of original charger, this is what makes the 23% difference.
5.1/6.0 same : QC2.0 working....No need nothing adding...
kabirjedi said:
5.1/6.0 same : QC2.0 working....No need nothing adding...
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Again, you dont get real qc2. You probably havent even seen qc2.
What you get is. 5v 2A instead 5v 1.8v.
Your dont get qc2 voltage.
I dont get why people think that they get qc2 when other phones with qc2 charging much faster. You get higher ampr not voltage that should be with qc2.
808 have an abitilty to control voltage to get 9v or 12v. But it seems like lg stopped it.
shady121 said:
Again, you dont get real qc2. You probably havent even seen qc2.
What you get is. 5v 2A instead 5v 1.8v.
Your dont get qc2 voltage.
I dont get why people think that they get qc2 when other phones with qc2 charging much faster. You get higher ampr not voltage that should be with qc2.
808 have an abitilty to control voltage to get 9v or 12v. But it seems like lg stopped it.
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0-60% crk 40 minute. This is not qc2.0? .ok..........
Ok lol, nice.
Which version and charger?
kabirjedi said:
0-60% crk 40 minute. This is not qc2.0? .ok..........
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I just checked with my normal charger and 5.1.
I got 48% for 40 minutes.. Not so big difference for QC2.
the shady man has a good point
All I can say is, when I plug the bundled LG charger, I get no notification of fast charge. When I plug a 5V 2.1A charger I also do not get the fast charging notification .
But when I plug my Asus Zenfone2 charger which can climb up to 9V 2A, I get the fast charge notification. I need to check how fast it charges.
shady121 said:
It's not, the difference if only 23 percent. Moreover, the voltage should increace from 5v to 9v or 12v but in LG g4 even with QC 2.0 charger, the voltage isalway 5v.
What you get from your QC charger is just 2 amp instead 1.8 amp of original charger, this is what makes the 23% difference.
Click to expand...
Click to collapse
Just found the old photo, that is captured from 5.1 with qc2.0 charger, although the photo is out of focus, but you can see that the voltage is almost 9v
Sent from my LG-H815 using XDA Free mobile app
doublewong said:
Just found the old photo, that is captured from 5.1 with qc2.0 charger, although the photo is out of focus, but you can see that the voltage is almost 9v
https://www.dropbox.com/s/563ae0sy9n6600f/20150923_134433.jpg?dl=0
Sent from my LG-H815 using XDA Free mobile app
Click to expand...
Click to collapse
Can you upload the picture?
doublewong said:
Just found the old photo, that is captured from 5.1 with qc2.0 charger, although the photo is out of focus, but you can see that the voltage is almost 9v
Sent from my LG-H815 using XDA Free mobile app
Click to expand...
Click to collapse
I wish it reached the peak 12V at 1.5A that will charge the battery to QC2.0 specs of 60% in 30 minutes.
I have just bought the UCH10 from Sony to try out on the fast charging, its seems charging at the same rate as a regular 2.1A Charger.. Anyone facing this issue?
finoqq84 said:
I have just bought the UCH10 from Sony to try out on the fast charging, its seems charging at the same rate as a regular 2.1A Charger.. Anyone facing this issue?
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I don't know about the UCH10, but I know with my Powergen charger I see it going into HV (fast charge) mode. (The charger I have has an indicator for when it's in 9v mode).
However, I have noticed this device's thermal throttling is pretty aggressive. You need to let the thing idle if you expect it to charge at any reasonable rate thanks to the Snapdragon 810 being a power hog.
Confimed the UCh10 charger fast charge working
Only got 13% from 1% for 15mins
What happened!!
Mine came with the UCH10 charger and am using my short Sony usb cable that came with my headset (EC300). I went from 4% to 100% in 1 hour and 35 mins. At the end of the day with my bluetooth headset and smart watch conneted all day (12 hours) moderate use emails,mms,calls. I have about 42% remaining. It only seams to be getting better with each charge. Today it went from 5% to 100% in 1 hour and 22 mins.
Perheps Sony's fast charging is to speed up overall charging at a faster rate. As i was from Note 5, its charging takes only 10 mins to jump from 5% to 38%!!
Perheps they are both using different fast charging tech?
finoqq84 said:
Perheps Sony's fast charging is to speed up overall charging at a faster rate. As i was from Note 5, its charging takes only 10 mins to jump from 5% to 38%!!
Perheps they are both using different fast charging tech?
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Click to collapse
Both are using the same under different names. Samsung named it "Adaptive fast charging" and the rest use qualcomm's name "Quick charge".
For example mine is in the box with standard 1.5 normal charger, but I am using the charger from my dead note 4 (yes it is a quick charger one) which is charging z5p at the same speed like my note 4. Also I am monittoring the charge rate, and I can confirm that samis Adaptive charger charging at max using qualcomm's quick charge standard our z5p devices.
Edit:
If note 5 charging so fast it must be another tech from Samsung (or wrong battery stats - believe me I experienced these few times on my note 4 during flashing AOSP roms).
Cheers
Edit 2:
I can remember that note 4 when stock (tw) is charging much more aggressively during initial charge (upto around 50%, and then it just slow down), while AOSP is fast charging constantly (lower rate compared to samis stock tw rom) but use quck charge upto 90-95%.. It is a setting at the end. Yoi can force set this with custom kernel.
Using ampere it shows a max of 1650 mv. What is everyone else getting? I could of swore my 6p would top out at 1800+. Is Google turning it down to protect the device? Not a super huge deal but I know the device could handle more.
Ive seen up to 2900ma on my Ampere app, which is the max with the chargers i have been using. With a USB PD charger it should go higher.
Not exactly sure how Ampere will represent 9v 2A charging as being better than 5v 3A ..
In my testing, Ampere does not correctly report 9V charging levels. And it hasn't always been 100% accurate anyway. Sometimes it is wildly off and you need to restart the app.
Ok. I didn't know these things. To me things seemed weird. I read that it takes two hours to charge the pixel xl....I just got mine so I really haven't tested it out. But my 6p technically should charge the same speed and I can charge that device in 70-80 minutes
To power up, you consume Red Bull. But your phone just needs its adaptive fast charger. Rate this thread to express how quickly the Lenovo ZUK Z2 (Plus) can charge. A higher rating indicates that it charges extremely fast.
Then, drop a comment if you have anything to add!
Works as expected nothing worth mentioning.
1.5amp screen on, 2.5amp screen off
The charging times are fairly quick. I have nothing to complain. Good battery backup and decent charging time makes a good combo.
The original charger is good enought but someone tried to use something faster (more mAh or quick charge?)
i tried a QC3.0 charger and it gives the same results as the original charger. between 0% en 80% 1.5Ah screen on and 2.5Ah Screen off.
It supports quickcharger 3.0 according to specs has someone tried using it??? Any difference in charging speed.... I was considering buying one.... But not sure if they are worth it.... So could someone kindly share their experience with qc 3.0 chargeing..... Thanks in advance
fast compared to other same range phones.
1:40/50 mins to full charge.
charging speed is awesome
raketman said:
i tried a QC3.0 charger and it gives the same results as the original charger. between 0% en 80% 1.5Ah screen on and 2.5Ah Screen off.
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How much time taken for it
Should i buy a quick charger for zuk z2
no need. The charge power is limited to 12.5W for any changer.
I have seen higher speed till 80% and charging speed slows down a lot between 80 to 100%.
Between 0-80% it charge at an average rate of 1-1.5% min (screen off) where as after 80% the time to charge 1% keeps increasing.
Slowest is from 95-100%. There it takes several min to push 1% compare to upto 2% every min when charging below that 80% marker.
I am using the stock charger.
Charging speed is very good. Its about 1% per minute.
raketman said:
1.5amp screen on, 2.5amp screen off
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2.5A screen off????.max speed it at only 2A...on stock charger