Hello,I have MiMix2 and he charging slow.I was on service and they say charging regulator is dmg.How to fix them
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I think I read some where that charging with the A/C charger and NOT plugging it into the computer to charge will allow the phone to charge faster..
But is that it?
I charge my phone every night with my computer and the supplied USB cable..
Its always 100% in the morning (or 90, or inbetween, depends)
If you're charging from the computer, it will charge at 500 mAh (so as not to damage the computer's USB port). If you're charging with the AC adapter, it will charge at 1000 mAh. So AC will charge faster, but both will reach the same point eventually.
I've heard that only charging over USB will make your battery last longer before you have to replace it - I guess charging faster wears it down more. However, I don't know too much about that.
I received a sample unit from ChoeTech of their new 6-port 50W USB QC3.0 charging station for testing. This product has been available on Amazon since early June.
https://www.amazon.com/CHOETECH-Cha...t_2?ie=UTF8&psc=1&refRID=38JX0Y88THN4164GBCXS
This product offers 2 QC3.0 ports as well as 4 'smart charging tech' ports. The smart charging ports will variably supply amperage up to 2.4A depending on the device.
Per the device stats:
4 smart ports = 5V @ 2.4A (Max)
2 QC3.0 = 3.6V~5.5V @ 2.4A (Max), 5.6V~9V @ 2A (Max), 9.1V~12V @ 1.5A (Max)
I have been testing out several companies' QC3.0 offerings over the past few months. I have a LG G5 and have posted previously about my results on QC2 vs QC3 charging here: http://forum.xda-developers.com/lg-g5/how-to/g5-charging-data-using-qc2-0-t3358220
I now conduct my testing with USB multimeters connected directly to the charger. Despite the existence of good charging logging apps (I prefer Battery Monitor Widget Pro myself), the Android OS does not properly report amperage. I believe it is because they expect 5v input, and with Qualcomm's Quick Charge the voltage varies greatly.
Unit 1:
This one was fulfilled by Amazon. Utilizing the USB multimeter, I quickly discovered that the voltage did not fluctuate at! It started and remained at 9V, with amperage starting at 2 and slowly dropping as the charge time continued.
Basically, this behaved exactly like QC2.0 tech and not at all like QC3.0! I messaged customer support and they were quick to respond, indicating this was a defective unit. A replacement unit was sent, this one direct from China.
Unit 2:
This product did have the proper voltage and amperage responses I would expect from a QC3.0 charger.
One new issue I discovered though was that if the G5 was in the early stages of charging and the battery % was low, the charger would cut off, then restart. Careful examination showed that this would occur whenever the max wattage approached the upper limits of QC3.0 spec. (QC3.0 spec has a max wattage of 18W). It seems that when the phone requests >2.4A, the charging circuit would cut off, then restart. It does appear once it restarts once, the phone continues and finishes charging without issue. This was using the stock LG USB-C cable.
I brought this issue up with Choetech's customer/technical support. After examining the video I provided, they will be increasing the limits of the amperage circuit to 3A so that it will not cut off if the phone requests more. This updated version is currently being manufactured and I will report back with results once I receive it for testing.
Hello,
is it possible to monitor voltage of the charger on the phone? Like when the charger is providing 7-9-12V of power?
Thanks
No.
The only Voltage sensor for the BMS (Battery Management System) shows the Charging Voltage which is between 3.6 and 4.4V
AFAIK the input Voltage of the USB Port is not monitored.
My fiancées ZUK Z2 stops charging at random. Sometimes its 4%, sometimes at 68%. When she disconnects the charger and plugs it in again charging speed raises to about 1% per second for some time (WOW! that's a quickcharge and the phone will charge fully. Battery capacity is fine. I've tried with different chargers and cables (max 2.4A, 5V so I didn't fried qc the diode) except the original one because i have to find it. Do you think it will solve by itself with time using the original charger or this may be something serious?
Let's take the charge current and voltage as 3000 mA and 4400 mV for best case scenario, the actual resulting wattage is 3000x4400 = 13200000 (i.e. 13.2W) which is still way lower than 18W. So what's the deal here?
It is charging the phone at 12V 1.5A = 18W
Charging the battery requires 5V Input (The shown 4400mV is the battery Voltage, not Charging voltage) so it needs to get Converted from 12V to 5V
In my case, It is charging at 12V 1.5A Converted inside the phone to 5V 3.4A = 17W (Software based Charging meter are not really accurate, it is even said in the app)
*To get full charging speed, the battery needs to warm up a bit, so the first time plugging the Charger wont be at full speed
*The battery Voltage will increase from around 3.8V at 5% to around 4.3V at 100%
Trisks said:
It is charging the phone at 12V 1.5A = 18W
Charging the battery requires 5V Input (The shown 4400mV is the battery Voltage, not Charging voltage) so it needs to get Converted from 12V to 5V
In my case, It is charging at 12V 1.5A Converted inside the phone to 5V 3.4A = 17W (Software based Charging meter are not really accurate, it is even said in the app)
*To get full charging speed, the battery needs to warm up a bit, so the first time plugging the Charger wont be at full speed
*The battery Voltage will increase from around 3.8V at 5% to around 4.3V at 100%
Click to expand...
Click to collapse
So how to see this accurately in an app? Is there a way where I can check the actual charging voltage and current received by the battery?
Are you also using Accubattery?
th1nd said:
So how to see this accurately in an app? Is there a way where I can check the actual charging voltage and current received by the battery?
Are you also using Accubattery?
Click to expand...
Click to collapse
Use hardware based charging meter like these. But its not really required, you can trust the Factory charger saying its 12V 1.5A.
What you can't trust is third party charger and cables in which case you should check using this.