I'm curious if anyone has been using Qi charging with their TabPro? Anyone's comments would be appreciated.
I used a micro-usb Qi coil receiver between my TabPro 8.4 and the Poetic case for a few weeks without issues.
But then something happened to cause the Qi charging pad to overheat. I ended up having to have the TabPro 8.4 replaced by BestBuy as the TabPro would no longer charge at all, even trying different micro-usb cables and 2.1 amp power adaptors. What was even stranger, was the battery continued to drain even after powering the TabPro off! I'm puzzled as to what was damaged, but the end result was the battery went from 41% charge to 7% charge overnight even though it was powered off (not sleeping, but powered off) and not connected to a charger. When I discovered it was at 7% I removed my account info, but even with the charger plugged in, the battery went down to 3% while working on the TabPro. When I checked on it an hour latter it was dead. If I plugged in the charger, after about 20 seconds it would flash the green battery for about a second, then it would go out. No boot, no charging, even after leaving it charging for 24 hours.
So I'm very reluctant to try to use Qi wireless charging on my replacement tab. I suspect the Qi charging pad failed and overheated. There is a spot about the size of a dime where the plastic partially melted on the charging pad. The Poetic case and the TabPro look fine, and the charging pad still acts like it is working. Very puzzling. Any ideas or cautions?
ron12 said:
I'm curious if anyone has been using Qi charging with their TabPro? Anyone's comments would be appreciated.
I used a micro-usb Qi coil receiver between my TabPro 8.4 and the Poetic case for a few weeks without issues.
But then something happened to cause the Qi charging pad to overheat. I ended up having to have the TabPro 8.4 replaced by BestBuy as the TabPro would no longer charge at all, even trying different micro-usb cables and 2.1 amp power adaptors. What was even stranger, was the battery continued to drain even after powering the TabPro off! I'm puzzled as to what was damaged, but the end result was the battery went from 41% charge to 7% charge overnight even though it was powered off (not sleeping, but powered off) and not connected to a charger. When I discovered it was at 7% I removed my account info, but even with the charger plugged in, the battery went down to 3% while working on the TabPro. When I checked on it an hour latter it was dead. If I plugged in the charger, after about 20 seconds it would flash the green battery for about a second, then it would go out. No boot, no charging, even after leaving it charging for 24 hours.
So I'm very reluctant to try to use Qi wireless charging on my replacement tab. I suspect the Qi charging pad failed and overheated. There is a spot about the size of a dime where the plastic partially melted on the charging pad. The Poetic case and the TabPro look fine, and the charging pad still acts like it is working. Very puzzling. Any ideas or cautions?
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Click to collapse
The only thing I can think of is maybe the Qi charging pad failed to deliver 2.1 Amps to correctly charge it (I don't think they even make 1 Amp coils yet? - though I could be wrong.) , maybe the tab went into charging mode but it was really discharging since not enough current was going in that it needed to charge + keep the tablet running so in the end maybe it destroyed the battery since it went completely flat which is usually a bad thing for l-ion battery's
Usually when android says the battery is at 0% the battery really has about 20% remaining for protection of the battery and preventing it from going completely empty (l-ion can really be drained to 2.5v but android reads 0% around 3.4v or 3.2v if i remember correctly as protection from flat-lining the batt), however if it was under charging mode I'm sure it would override this as it thinks it's plugged in so it's not paying attention to the battery, but really the batt is draining to compensate for the underpowered charger, that would be my guess maybe constantly using the Qi charger the battery circuitry changed the battery status from lv 2 (good) to ~ lv 4 (bad) since it wasn't receiving the current it was supposed to and the circuitry thought something was wrong with the battery cells or the battery just went bad since it was always under a charging / discharging state never reaching 100%.
on a side note
I found this tablet to be very fussy when using other chargers then its official one, I have tried several chargers and they just dont function like the stock one for example
HP Touchpad charger 5.3v - 2.0A - Very high quality charger and even won some awards for beating out other chargers - I found this would sometimes not fully charge the tablet to 100% it would idle around 98% (I have two of these chargers) - Charge current starts around 1800 mAh drops to 200 mAh when battery gets full don't think its enough to top it off. (charges at 5v)
10,000 mAh Power-bank (5v , 2.0A), found out this would not fully charge the tablet either it would get to 80%, upon further inspection the 2A port was only delivering about 1 Amp of current according to my amp reader (voltage drop to 4.98)
Samsung official charger (5.3v 2.0A)- though seems to start at a pretty high 5.60 volts (higher then other chargers) , and charges at about 1870 mAh , always reaches 100% with this charger. (I have two of these chargers since I bought another one as backup - both do the same thing)
otyg said:
The only thing I can think of is maybe the Qi charging pad failed to deliver 2.1 Amps to correctly charge it (I don't think they even make 1 Amp coils yet?
. . .
Usually when android says the battery is at 0% the battery really has about 20% remaining for protection of the battery and preventing it from going completely empty (l-ion can really be drained to 2.5v but android reads 0% around 3.4v or 3.2v if i remember correctly as protection from flat-lining the batt), however if it was under charging mode I'm sure it would override this as it thinks it's plugged in so it's not paying attention to the battery, but really the batt is draining to compensate for the underpowered charger, that would be my guess maybe constantly using the Qi charger the battery circuitry changed the battery status from lv 2 (good) to ~ lv 4 (bad) since it wasn't receiving the current it was supposed to and the circuitry thought something was wrong with the battery cells or the battery just went bad since it was always under a charging / discharging state never reaching 100%.
on a side note
I found this tablet to be very fussy when using other chargers then its official one, I have tried several chargers and they just dont function like the stock one for example
HP Touchpad charger 5.3v - 2.0A - Very high quality charger and even won some awards for beating out other chargers - I found this would sometimes not fully charge the tablet to 100% it would idle around 98% (I have two of these chargers) - Charge current starts around 1800 mAh drops to 200 mAh when battery gets full don't think its enough to top it off. (charges at 5v)
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Click to collapse
That could be the case. Yet, for two weeks, the Qi charging had no problems taking the charge to 100%. It would charge a bit over 15% an hour. The Galaxy Charging Current app reported between 670 and 750ma charging current using Qi charging.
At this point I'll likely never know, but it could be the battery itself simply failed on the tablet. My question is mainly to see if anyone else has used Qi charging, and what their experience is. How can I display the battery status (you referenced lv 2 (good) to ~ lv 4 (bad))? The battery app from the Play Store does display "battery health" but I've only seen it say "Good".
On your side note, I occasionally plug the tablet into the USB port on my computer (measures 5.10V), and it charges at about 10% an hour while sleeping, and has repeatedly charged the battery to 100% when I leave it connected. I have an EnrePlex Jumper Prime 4400mAh that measures 5.18V, and charges at 1.5A. It has charged the battery to 100%, though will run out of juice if the battery is lower than 40% before I use it, it measures 5.18V.
I have an old Galaxy Tab 2 10.1 that I often charge via the computer's USB port, although it takes a long time, and it's battery is still fine after almost 3 years.
ron12 said:
That could be the case. Yet, for two weeks, the Qi charging had no problems taking the charge to 100%. It would charge a bit over 15% an hour. The Galaxy Charging Current app reported between 670 and 750ma charging current using Qi charging.
At this point I'll likely never know, but it could be the battery itself simply failed on the tablet. My question is mainly to see if anyone else has used Qi charging, and what their experience is. How can I display the battery status (you referenced lv 2 (good) to ~ lv 4 (bad))? The battery app from the Play Store does display "battery health" but I've only seen it say "Good".
On your side note, I occasionally plug the tablet into the USB port on my computer (measures 5.10V), and it charges at about 10% an hour while sleeping, and has repeatedly charged the battery to 100% when I leave it connected. I have an EnrePlex Jumper Prime 4400mAh that measures 5.18V, and charges at 1.5A. It has charged the battery to 100%, though will run out of juice if the battery is lower than 40% before I use it, it measures 5.18V.
I have an old Galaxy Tab 2 10.1 that I often charge via the computer's USB port, although it takes a long time, and it's battery is still fine after almost 3 years.
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Click to collapse
The battery app from the play store probably does the same thing just shows a status as a replacement of the health, you can see the status with logcat occasionally you will see something like this ---
you might need root for some of these commands., you can use Terminal Emulator , adb shell, or sshd to access these commands.
Logcat::
1.
"D/BatteryService( 934): level:83, scale:100, status:3, health:2, present:true, voltage: 4091, temperature: 234, technology: Li-ion, AC powered:false, USB powered:false, Wireless powered:false, icon:17303447, invalid charger:0, online:1, current avg:-378, charge type:0, power sharing:false"
2. (shell)
dumpsys battery
will output something like this
Current Battery Service state:
AC powered: false
USB powered: false
Wireless powered: false
status: 3 < - unplugged
health: 2 <- health:2 would translate to good , health 1 would be excellent (though I have never seen a 1 status , 3 poor, 4 bad
present: true
level: 83
scale: 100
voltage: 4114
current now: -140
temperature: 248
technology: Li-ion
3. (shell, you can check out other files in the /sys/class/power_supply/battery/directory but be careful not to modify them)
cat /sys/class/power_supply/battery/health
Good
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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Click to collapse
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.
Should i turn off quick charge in HTC 10 for ensure the battery ? or can i use normal charge ?
Thank you
You can charge as normal, but it may charge faster if it's off.
Sent from my HTC 10 using XDA-Developers mobile app
Quick charge itself won't do any harm to the battery. Just make sure you don't call or play games while charging.
But if you charge your phone overnight then I recommend the regular charger rather than the QC.
How do you turn it off?
QC is actually better for the battery. It will quickly charge the battery to ~80% and then trickle charge the last 20% which will give you a longer battery lifespan than a slower sustained full charge. If you are used to charging overnight it's not really doing any harm leaving it on the charger for ~8 hours. I don't think you can turn off QC via software. If you don't want it, use an older non-QC charger (you can use the same cable).
What is the optimal way to charge the OP3 in order to preserve the battery lifetime? I don't care about charging speed, I just want the battery to last long with minimal degradation. Is dash charging bad for the lifetime of the battery? Or would I be better off charging the OP3 slowly with a traditional charger? Right now I have this charger
https://www.amazon.com/gp/product/B00SZHOI8U/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1
You should be using the OnePlus charger and cable which came with the phone. For optimal battery life, don't let the phone discharge below 10% and charge it till around 90%.
Dash Charging should be comparable with QuickCharge 3.0 which helps preserve battery life. So I reckon the official charger is your best bet.
Charging a battery with high intensity is bad for a battery life, dash charging/VOOC or quickcharge (any version) will be bad for battery in the long run.
But you'll only see a difference in 3 or 4 years and I don't think you'll use your phone more than 3 years. And even if you want to keep it more than 3 years, even if you don't use the phone, age will act on the battery. Even if you charge it slowly or quickly, there won't be a big difference in 2 years. Just be aware that USB-C cable have an active component in the cable head and a cheap USB-C cable can dammage your device.
If you still want to charge OP3 in good way, you have to plug it on a computer so it will charge at 5V 0.5A. It's very slow but it should charge your phone overnight and during the day, charge it while you have any occasion. 10 charge from 70% to 80% have less impact on the battery than 1 full charge from 0% to 100%.
Don't run it flat, keep it above 20-30% and don't fully charge it.
Don't leave it on charge overnight.
I run mine from about 30% to 90% maybe a little over as a 90% charge is what it takes to reset the days battery stats, screen on time etc.
Hi guys,
I'm writing because I have noticed that my battery performance change if I use a regular 2A charger.
With Pixel stock charger, which implements fast charge, sometimes battery drain is fast after stopped charging. For example, from 90% to 85% in a ten minutes.
With a regular 2A - 5V charger, the discharge is more regular, and I have also noticed that the battery life is better. The problem is that it takes a lot of time.
Has anyone noticed the same?