My phone is Asus Zenfone 2 (2GB) It.s charger's specifications are - 5.2V , 1.35A. and battery - Li-Po 3000 mAh battery. When charging via the charger, it gets 100% charged.
I recently purchased Ambrane 13000mAH, P1310, Li-Po battery Power Bank with 5 V, 2.1A and 1A output ports.
When charging my Zenfone 2 via Power Bank, the charging stops sharp at 85%. Initially I thought the Power Bank might be faulty, so I drained my phone's battery to 20% and connected it to the 2.1A port again. And surprisingly it charged my phone again to 85% where again it stopped charging.
Now the functionality of the PowerBank says, when the phone is 100% charged, the PowerBank would wait for few seconds and then will automatically shut down (auto disconnect feature). So, I think at 85% my phone signals the Power Bank, that it is fully charged, and now it should stop charging it any further. However, this is just a lame assumption. But neither do I know what changes in the settings do I need to make nor do I know how to get out of this.
A thought - Can the PowerBank be faulty ? ( 1 time charged Power Bank charged my phone 2+ times to 85%, the 3rd time it reached 65%)
You may need to test with a 2nd phone. We do know that charging the phone does slow down once it hits certain levels, but I've never had an issue with the ZenPower not charging the phone all the way.
after unlocking bootloader and flashing custom rom teameos rom my charger that came with zenfone 2 doesnt work but my trusty old samsung galaxy s3 charger works fine in it not a major loss didnt even use the proper charger much anyways as the cable isnt long enough to reach to my desk or bed and my sammy one is so dont know if its just my phone being weird with it or its the unlocking bootloader custom rom flash thats caused it
Related
Another attempt at trying to get an external battery that works:
Vaas VM50 5000mAh Dual Port Rechargeable External Battery Pack w/ 6 Charge Tips
It's enough to charge 1 time, although you have to unplug it when charged.
Here's the biggest problem: it seems that if charger has less juice left than the phone battery, it starts sucking the battery out to charge itself.
Yesterday my phone had 46% around 1am at night. VAAS had 2 out of 3 lights on (so above 50%?). When I woke up this morning - my phone was completely drained, and VAAS had 1 light on.
Don't buy it, it's crap. You may get 1 charge out of it, and even then you can't safely leave it overnight.
I am having similiar issue with RAIKKO 5200mAh pack. When you plug it in without turning the charger on, it will look like it's charging, when it fact it will discharge (fast - something like 400mA even with screen off). The same happens when it runs out of juice - it will stop charging, switch off and start "draining" the battery.
When I tried this on my friends Desire HD, it said "charging voltage is too high" and refused to charge until I actually turned it on. So it is an error in both the charger and the phone...
I guess your charger has the same crappy chinese circuitry :-(
I've been successfully using the new Trent 5000mha external battery pack. I got it of amazon and the thing has been faultless in the 2 years I've owned it. The cells are starting to wear now but I can still charge my phone 3 time before re juicing is needed. I think it was around £13 so it was a bargain as well. I use mine to charge the one x ok, but my Samsung galaxy tab it keeps level , I think that machine need 2 amp to correctly charge.
The pack has two outputs, one marked iPad is 1amp and the other is 500mha. I've never had it back charge a from a phone. Just make sure you turn it on otherwise it won't charge the device - the red light come on but no charging happens.
Sent from my HTC One X using Tapatalk 2
Hi
can this phone be overcharged ? like when you leave them charging from the night till u wake up in the morning ?
because i just leave this phone charging overnight (9 hours)
I'm not charging from usual charger with adapter (friends says if its 100% it will stop charging)
what terrifies me is that i'm charging from my laptop via usb cable, if it's already 100%, will it also stop charging like on charger with adapter ?
thx
Bry335 said:
Hi
can this phone be overcharged ? like when you leave them charging from the night till u wake up in the morning ?
because i just leave this phone charging overnight (9 hours)
I'm not charging from usual charger with adapter (friends says if its 100% it will stop charging)
what terrifies me is that i'm charging from my laptop via usb cable, if it's already 100%, will it also stop charging like on charger with adapter ?
thx
Click to expand...
Click to collapse
Well then let me be the first to congratulate you @Bry335. Overcharging a device is bad for the battery. In fact research shows that you should stop charging at around 80-90%. The battery will end up swelling which may lead to future problems like the glass on the back cracking ( since the Z1c has a built in Battery ). You may also end up with shorter battery life and higher temperatures
Also If I were you I'd use the charger that came with the phone...unless the charger you use atm is 5V 1500mA which is the ideal charger for the Z1c
Enjoy your Day
Revontheus said:
Well then let me be the first to congratulate you @Bry335. Overcharging a device is bad for the battery. In fact research shows that you should stop charging at around 80-90%. The battery will end up swelling which may lead to future problems like the glass on the back cracking ( since the Z1c has a built in Battery ). You may also end up with shorter battery life and higher temperatures
Also If I were you I'd use the charger that came with the phone...unless the charger you use atm is 5V 1500mA which is the ideal charger for the Z1c
Enjoy your Day
Click to expand...
Click to collapse
Well, read that: http://talk.sonymobile.com/t5/Xperia-Z1-Z1s/overcharging/td-p/475959
I had no problems charging overnight, also, as it's stated, it's OK to do that...
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?
Click to expand...
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)
Click to expand...
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.
Click to expand...
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
Hello,
I was wondering who is charging during the night and who is going also below 15% battery ?
gontie said:
Hello,
I was wondering who is charging during the night and who is going also below 15% battery ?
Click to expand...
Click to collapse
I was having this problem when not using the included charger.
It seems that the phone actually requires to be quick charged (8V 2A) up to 65% or so and will then switch to the usual 5V 2A mode when it's reached this point.
As a result when I was using a regular charger (Nexus 7 charger, 5V 2A) the phone would "charge" but would actually slowly lose battery power during the night.
Gotta watch out for specific usb cables or charger adapters that don't provide enough power (as mentioned above).
I have 2 Nexus 7 FHD (2013) tablets and my Zenfone2 has exactly the same charger, 5.2V 1.35A
A standard cellphone charger is 5V and about 700-800mA.
gontie said:
Hello,
I was wondering who is charging during the night and who is going also below 15% battery ?
Click to expand...
Click to collapse
I turned on Airplane mode and power saver while using a regular 5V Charger, and it was able to charge over night.....just not fully.
I thought I was the only one with this issue. Everything works fine with the included charger but when using my charger from my Nexus 4, it would charge a bit then at times start losing battery. I've used a friend's Nexus 5 charger and it has been hit and miss...sometimes it charges all the way sometimes it charges a bit and then starts losing battery.
Im also using ipad 2 charger..works well as a normal charger for zenfone 2. Especially if your gaming and charging same time..mine does not over heat..but dont recommend to do it always
In fact my question was more about who is charging all night their phones and also who is using his phone when the battery is lower than 15%.
Happy to see some others bugs on the ZenFone 2
gontie said:
In fact my question was more about who is charging all night their phones and also who is using his phone when the battery is lower than 15%.
Happy to see some others bugs on the ZenFone 2
Click to expand...
Click to collapse
i charged my phone twice over night and i does mostly use it to just under 10% before i recharge
I have had my S22 base for about a week, and while I am still concerned with the life I'm getting (same apps and usage pattern, about 4+ hours of SOT and 15 hours of mixed use) vs the S9, I had decided to keep it until ...
I can't get the thing to super/fast charge. I do not have a Samsung charger (waiting until I get my voucher) but do have a number of 15W and 25W PD-compliant chargers that work on everything from my S9 to my laptop. Unless I turn the phone off, all of those chargers charge S22 at a rate of 10-20% per hour, with Accubattery readings in the 200-1100 maH range, NEVER a value over that. The battery temp and voltage are well in spec. It is currently plugged into my laptop PD compliant charger at a rate of 900 mA with a "time to 100%" of 30h.
Likewise, I bought 2 car chargers that are S21 certified as well as QC3.0 and PD3.0. It has a 30W port. I used the cable that came with either charger (I've tried a ton of cables) and sometimes it gives a "0mA" reading while other times it goes 200mA-800mA at a good voltage. That means while I don't lose charge, I also don't gain. On my 30 min drive home I went from 23% to 24% with dark mode and no apps running.
Finally, to extend the mystery, depending on which aftermarket charger I use the phone itself thinks I'm Fast Charging or Super Fast Charging, reporting that on the lock screen and battery screen. On that screen it says something like 30m to 100% even though the observed charge rate is much lower.
Samsung won't talk to me unless I'm using a Samsung charger and I can't wait until I get the voucher/those are in stock ... I have 5 days to return it and unless you can help me (Obi Wan) I'll be back on that track.
icewiz1 said:
I can't get the thing to super/fast charge. I do not have a Samsung charger
Click to expand...
Click to collapse
I use my old 25W (original from N10+) charger and it takes about 1 hour to charge from 15-20% to full. I have the DevCheckPro app showing me at the start 17-18W and about 6-7Amps of charge load initially, at the beginning.