Questions tagged [charging]

For questions specifically about issues with battery charging or power supply.

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16 views

Phone stuck at 0% battery

I have a Moto G phone. I'm using LineageOS. Yesterday I notice my phone went dead. When I press power button, a white light in the camara flashes three times, which I understand to be no battery. It ...
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17 views

Charge and USB flash drive through same port

I have a Pixel 3. I'm trying to use an external USB connected microSD card for recording long videos in a vehicle. However, even with wireless charging I'm finding that the power supplied is ...
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1answer
35 views

Pixel 3a charging over computer USB connection

I have an Pixel 3a device that I connect to a Linux computer via USB cable (A to C). Sometimes when I plug in the device, the notification on the Pixel 3a says, "Android System - Charging this device ...
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20 views

What is signified by the yellow triangle with a black exclamation mark on Samsung devices

My friend has a Samsung Galaxy S9. Every now and then it refuses to charge because of moisture being detected in the port. However; upon completely discharging this once; it showed a ⚠️ mark when the ...
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1answer
54 views

Is it safe to charge tablet from phone via OTG cable if tablet's adapter is 5.2V?

Is it safe to charge tablet from phone via OTG cable if tablet's adapter is 5.2V (a bit above)?
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1answer
33 views

Battery drains when phone is turned off

I have a used Samsung Galaxy S3 Mini GT-I8190. When I shut down the phone the battery still drains. The longer I leave the battery in the shut down phone the more charge it looses. Typically the ...
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1answer
60 views

Should warnings about not charging your phone at airport/public usb ports be taken seriously?

There are many articles on the internet saying that charging at the usb ports available at the airport and public places can cause your phone to get hacked. Is there any any truth behind this? If ...
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1answer
29 views

Quick charge adapter on not supported devices

The adapter which comes with my new phone has Qualcomm Quick Charge 3.0 label on it. The output reads: 5V-3A / 9V-2A / 12V-1.5A. Is it safe to use it with my old phones? For example, if I have a very ...
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1answer
84 views

Is the battery cycle count stored on the battery or the device?

I downloaded an app Phone INFO which shows a number of stats, particularly "Battery Discharge Cycles". I want to know if this number is being retrieved from the battery (i.e. it's just the number of ...
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20 views

Qualcomm Quick Charge and Samsung Note 10

I'm planning to upgrade my phone and I've got a lot of QC 3.0 chargers and a QC powerbank. Now days I see all mayor producers get their own proprietary fast charge technology. My question is if I'll ...
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0answers
43 views

Charging problem. Please help

My phone (Note3, CustomOS: Phronesis) got a charging problem last night. It does not charge properly when running or if the screen is off now. Usually the LED went on while charging but it stays off ...
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61 views

“Moisture has been detected” even after 2 weeks, also in safe mode

Two weeks ago my Samsung Galaxy S10e got a bit wet while in my pocket under heavy rain. The phone did not go inside water, but it was pretty wet. Since then, I got this message from time to time when ...
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40 views

Galaxy s9+ not charging via USB-C cable and not quick charging at all

I ran into a problem with my Galaxy s9+ recently, it won't charge at all using my Samsung 25 Watt Wall Charger and also won't charge using my Aukey 26800mah power bank when connected via USB-C. It ...
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1answer
41 views

How to get fast charging diagnostics information

I want to find out what type of Fast Charging is supported by different combinations of Android device, cable and charger. I have a variety of devices, from different manufacturers and with different ...
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1answer
21 views

Android won't turn on at all

Basically the phone won't turn on at all, not normal boot, not recovery mode, not even the battery percentage show up while charging (just the battery icon with lightning, that's it). it stucks on one ...
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14 views

How to change deafult charging only to MTP? [duplicate]

I have a galaxy J5 2015 with android 6.0.1. My problem is that its default configuration is set such that when I connect it to PC it is in 'Charging Only' mode. I need to go to Setting --> Developer ...
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6 views

Having trouble powering up my phone with another power source

I am having a bit of trouble powering my phone I got a Lenovo A7000 plus which is the same as K3 Note version and this phone uses BL243 battery Here is some information about the battery Typical ...
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0answers
65 views

Phone only charging in offline charging (when powered off) Moto X play

I'm struggling with this issue for about two months now. ISSUE Phone, when on slowly charge to around 65% (rarely reaches 100%). Around +10%/h. Ampere reports battery overheat, when it's 25-32 C. On ...
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1answer
21 views

Phone gets stuck after charging

My phone is somewhat older sony xperia v. still running on android v4.1 jelly bean. recently it behaves abnormaly. whenever I put it in charge (wall adapter or usb plugged into a laptop) , it only ...
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0answers
44 views

Is it a Kernel or a ROM that provides power_supply battery files?

Long story short I was installing custom ROMs to my Android device and one thing that stays in place regardless of ROM I use is a wrong battery stats monitoring. The device always behaves like it's ...
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14 views

Will using another brand charger damage my phone?

I have a Samsung Note 4 phone and since its charger is spoilt, can I use a Nokia charger? Will my phone get damaged? Because after I tried using the Nokia Charger for a while, it didn't get charged ...
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22 views

New Samsung Note 9 battery charger compatibility

I just bought a new Samsung Note 9 (Exynos 9810). Little did I know that the model I ordered was the EU version and not the US version, so the charger I received was unusable with any of my power ...
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17 views

Why Don't USB 3 Y-cables Work for Charging

I use a Samsung Galaxy S5 in a robot. Keeping robot and phone batteries charged is a constant issue. So I've acquired a bunch of different Micro USB3 to USB A Y-Cables (splitting power and data) in ...
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1answer
121 views

Plugging phone into laptop charges laptop instead of phone

When I plug my father's Xiaomi 5X into my MacBook Pro, it shows up as a charger on the MacBook and I don't get the usual USB options on the phone. Tried it on two Macs with same result. Also tried my ...
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20 views

Nokia 1 phone usb tethered to Asus 51U router..insufficient charge

works fine..unlimited data on phone with a usb cable connection from micro usb in phone to normal usb 2.0 on router. These routers can use usb connection is selected as source. Problem...the half amp ...
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1answer
58 views

Power empty android (Samsung) - cannot charge

Samsung SM-T580 power became empty and stopped. Connection with charger result in flickering (black) screen with the charge icon showing. I used several cables and adapter. After many hours the tablet ...
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0answers
1k views

How can I fix a charging problem on Moto G5 Plus?

A Moto G5 Plus device (Android 8.1.0) was charging and performing normally with a healthy battery response. One morning, instead of being at 100% (expected after charging all night), the phone ...
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1answer
117 views

Leaving phone plugged in all the time?

I have a spare OnePlus One that I use for home automation stuff (RM Plugin, Tasker, etc.) I leave it plugged in all the time. Sometimes the phone does get quite hot. Just today, wanting to do more ...
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0answers
99 views

Why does my Samsung Galaxy S8 Active no longer “Fast-Charge”?

I bought a refurbished Samsung Galaxy S8 Active in excellent condition about 6 months ago, and it came with the standard manufacturer-provided power adapter and cable for charging (Model: EP-TA20JBE, ...
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0answers
24 views

Shorting data lines in android [closed]

I want to modify my smartphone charger, i plan to use a dc socket with + and - only to charge my smartphone, now i wanted to increase the current to about 900 mA that's the current of my charger when ...
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1answer
38 views

Power on when charging but only when battery level is greater than 20%

I have recently tried to fit a tablet into my car and I came across a problem with waking up the device without using the power button. My solution is to boot the device whenever it is charging, but ...
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2answers
35 views

Phone not charging

My phone doesn't charge at all, even when is charging while switched off. And I have tried it with many chargers and battery. But same thing keeps happening
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0answers
21 views

samsung tablet charging procedure

I am considering tablets to use in a small plane to run Sky Demon, a navigational aid. The Samsung tab A 7" is suitable as far as I can determine. The plane has a 12 volt socket similar to a car. The ...
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1answer
69 views

Is it bad if a cable is higher current rating than a charger?

First time asking here, but Is there any potential harm in using a charging cable with a higher current rating than a charger it is connected to? It's a tablet (Asus P027) and its charger is 5V/2A ...
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19 views

Unusual Decrease in Charging Amps

I got to know about the Ampere app, which basically tells you how much amps does your phone draw while charging. I have noticed that my charger keeps on decreasing from 680 mA to 0 mA in 5 minutes and ...
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53 views

Android smart phone wont turn ON

When I try to turn On my LG L7, it shows Device temperature too high or low. Please move to another place to charge. And it wont turn ON. It started after I tried to measure voltage between the ...
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2answers
179 views

Can I safely charge a SGS9 device with a 5.2V MacBook Pro 2018 USB-C charger?

Can I use 87W USB-C Power Adapter for MacBook Pro to safely charge a Samsung Galaxy S9 device? I'm curious as on the charger it says the output is 5.2V, while the phone seems to require 5V. The specs ...
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1answer
60 views

Make device take power only from charger when the battery is full

I made a device that is up and running (screen is on) 24/7 and connected to AC charger. After only 1 year, the batteries of these devices are dead. I don't really understand since the device is ...
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1answer
2k views

Does Huawei's super charging affect the battery?

I have a Huawei P20 pro and it came with a "super charger" that can take full charge the phone's battery really quickly. Sometimes in less than an hour. I wonder if this affects the battery's ...
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1answer
89 views

motorola droid turbo battery not charging

I bought droid turbo about five months and I upgraded it to marshmallow. Unfortunately, it fell on the ground four times, then the fourth time it stopped charging. When I connect the charger, it ...
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1answer
237 views

Macrodroid: I want a repeating alert when battery is less than/over than x%

I want a repeating alert when battery is less than/over than x%. I have a pair of alerts (Using MacroDroid) that are triggered by a battery level change. One of less than 35%, and one of more than 85%...
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1answer
357 views

How can I get Ethernet adapter and still be able to charge my tablet

I found this adapter to add Ethernet to my android phone, but looks like doesnt power the device. Is there a way to have Ethernet connection and still be able to charge the device at the same time? ...
2
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1answer
84 views

Is my battery damaged?

I have an HTC 10 running stock Oreo with Sense, not rooted and S-ON. I bought this second hand and don't know whether the issue came up as the phone was upgraded to Oreo, or whether it had always been ...
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1answer
40 views

Cell Phone is unresponsive, but after it ran out of power it was chargable again?

So yesterday my cell phone was acting strange, it didn't respond to charging and/or could not turn on (no charging light and blank screen). Today (I assume after it ran out of power), it is charging ...
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1answer
56 views

Automate Charging cycles for always connected devices to wall outlet [duplicate]

Is there any way to automate charging cycles (like charge only from 40% to 80%) if the device always connected to power outlet? I'm searching for a way to read charging level and send commands to ...
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3answers
72 views

Why does fingerprint sensor not work when phone is charging?

I often face this issue. The fingeprint sensor does not work and sometimes the touch also misbehaves when phone is charging. Why does this happen and how to fix this? I experienced this issue with ...
2
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0answers
46 views

Android phone plugged into charge 24/7

I currently have an LG E440 (non-stock ROM) plugged on charge 24/7 (connected to mains outlet, not PC) as it runs several Tasker-based routines which need to be seperate from my day-to-day phone. ...
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1answer
53 views

Battery shuts down at 25%

I've read that battery calibration apps are only a placebo effect and they do nothing. Is this true? What to do if your phone suddenly shuts down at 25%?
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1answer
87 views

samsung s9 Charging time

My new Galaxy s9 is taking around 1 hr 39 mins to completely charge the battery. I checked with Samsung customer care they said it should take normally 50 mins to 1 hr. They did some test on mobile ...
2
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1answer
875 views

How to make phone boot automatically upon battery insertion (unlocked bootloader and root: yes)?

By battery insertion I mean current flowing on the battery pins, not the micro USB port. Description The phone in question is a Samsung Galaxy Xcover 4, the bootloader is unlocked, and I have root ...