All Questions
51
questions
0
votes
0
answers
50
views
I would like to know how to add a 2nd USB charging port to a Lenovo YogaBook with only one USB 2.0 port used for both data and charging?
I would like to charge a Lenovo YogaBook laptop while using the data port. This isn't supported by the laptop unless I am wrong. I have followed some tutorials which supposed to work but it didn't.
I ...
0
votes
2
answers
251
views
Bluetooth and USB issues on desktop replacement laptop without battery
Despite age and dead battery, Dell M6700 laptop serves well as a desktop replacement for tasks like email, social media, and video streaming for a family member. However, recently Bluetooth ...
- 156
4
votes
2
answers
2k
views
USB C charging on Dell Inspiron laptop: OnePlus 65W phone charger
I have a Dell Inspiron laptop with a USB C port. The normal charging is 65W adapter via the Dell power (charging port). If I connect this to my OnePlus phone charger which is also 65W somehow it does ...
- 588
0
votes
0
answers
350
views
100w USB-C to DC power adapter charging issues
I've been encountering some issues with a custom charging setup for my Razer Blade 15 laptop. My blade is a 2020 model that does not support USB-C charging. I wanted a more compact solution than the ...
0
votes
2
answers
968
views
Laptop dead from overvolted usb-c
Laptop is EVGA SC17
Usb-c 3.1 (non thunderbolt)
Battery 3.7v 550mah
Ok so i stupidly was hotwiring a battery to charge via my laptops usb-c port, I know i should have used my powersupply or even a usb ...
- 11
0
votes
0
answers
66
views
Unable to charge HP Envy Intel i7 11th gen with Comsol 25600 power brick
I purchased and HP laptop as above. The battery won't get through a full day on a charge, so I purchased a Comsol power bank. I have contacted Comsol and have been told that it should charge a laptop ...
- 847
0
votes
3
answers
3k
views
How can I determine how many amps I need to power/charge my Chromebook
The power supply that came with my Chromebook died recently and I've had a hella time just to find a charger that's just right for it. When studying different recommendations from different sources it ...
0
votes
1
answer
322
views
If I connect a USB-HUB to a USB 3.0 port and then plug my android tablet in the hub for USB Tethering, How much power transfer should be happening?
So, I have been tethering my tablet with my PC for a long time and I noticed that It charges pretty fast when connected through USB hub compared to normal tethering on USB 3.0 port. I installed Ampere ...
0
votes
1
answer
73
views
Vaporizer not recognized by windows when charging through USB [closed]
I would like to check the voltage (V) and current (A) with which my XMax Starry v3 vaporizer is being charged. I have tried different ports but it doesn't seem to make a difference. Do devices that ...
1
vote
1
answer
5k
views
If I charge my iPhone using MacBook USB, while the Macbook is charging, will that affect battery life negatively?
If I charge my iPhone using a MacBook USB port while the MacBook is charging, will that affect battery life (of either the MacBook or the phone) negatively?
I would think not, since the battery is ...
- 11
1
vote
2
answers
8k
views
Is it safe to use 70% isopropyl alcohol on electrical contacts on any device with a battery as long as it's powered off?
I'm talking about USB ports and charging ports for laptops and phones. I want to use a cotton swab or a microfiber cloth dampened with alcohol to clean the inside. Compressed air won't do it.
They're ...
- 121
0
votes
1
answer
35
views
I have an old Dell computer but the charger does not work
I have an old dell computer that has the regular charging socket malfunctioning.
I have been trying to find if I can use a charger that has USB C and then use an adapter on the laptop to convert USB A ...
0
votes
1
answer
248
views
Charging tablet while in OTG
Similar questions have been asked before, but the posts are years old and not really answered.
So:
I have a tablet with USB-C or Lightning port (female). I want to connect a special 5G receiver and a ...
- 1
0
votes
0
answers
46
views
How to use all the 45 Watt out of the Xiaomi Mi Power Bank Pro 3
I have been working on this project that consists on making a somewhat portable computer... I intend on using a Raspberry Pi and an old laptop monitor to get the job done. The thing is that I bought a ...
0
votes
1
answer
299
views
Lenovo T495 - Opensuse Tumbleweed - USB does not work when on battery
I have a Lenovo T495 and it works fine when on mains. However when on battery, USB devices (flashdrives, hdds, etc) are not detected. Plug in the mains, and they are detected fine. Running kernel 5....
- 145
1
vote
2
answers
3k
views
Charge laptop with USB PD at 20V even if it draws less than 45W?
I want the possibility to charge my Laptop (19V/3.42A, Acer Aspire 5 A515-52G) from a power bank. Since my laptop only has the ordinary barrel power connector but power banks usually come with a USB-C ...
- 45
0
votes
2
answers
46
views
My mouse, just says Microsoft on the bottom, and doesn't work
I changed the mouse batteries a few days ago and the mouse has not been working. I don't know the specific model or type of mouse. It is wireless and there is a USB connector in my computer. The ...
0
votes
1
answer
365
views
Safe? ..Using a Y USB cable to power a dash cam from 2 power sources [closed]
I would like to power a dashcam from 2 power sources (the car cig lighter & battery pack) using a Y-USB cable (1 female - 2 male). I would connect my dash cam to the female end. Then plug one of ...
- 1
0
votes
1
answer
245
views
Can I charge a simple Nokia phone which has USB input (5V=450mA) with a 5V=2A/7V=1.8A/9V=1.8A/12V=1.3A supply? [closed]
I have a Nokia Asha 501 Dual Sim phone which comes with the power supply as stated in the title. It recently broke, and I decided to test if the phone's USB port which I thought was only for data ...
- 1
1
vote
2
answers
1k
views
USB A to C cable with USB 2.0 charger, low current
Note: this is not about a specific device but the general aspects of charging a USB device using accessories with different USB standards so I hope this fits here.
I've got a Samsung Galaxy ...
- 125
4
votes
2
answers
597
views
Can phones/tablets avoid charging from USB power?
I know that some laptops (e.g. Lenovo ThinkPad) have user-controllable software to disable battery charging even when AC power is plugged in. This feature takes precedence.
When a typical mobile ...
- 720
0
votes
1
answer
179
views
How to charge an usb-c equipped laptop from a powerbank
I have got a laptop that can only be charged via usb-c.
I also have a powerbank (45000mA) that not only has usb outputs, but also an output (up to 20V) for laptop charging. It came with 11 adapters ...
- 15
2
votes
1
answer
52
views
How do capacity meters on USB drives if there is no battery or power source in the drive itself?
Some USB flash drives, such as the Lexar JumpDrive M10, have some sort of capacity meter on them, indicating the space left on the USB flash drive even when it is unplugged.
How does that work exactly?...
- 23
1
vote
1
answer
1k
views
Could overvolting the USB port on a laptop cause battery drain issues?
So yesterday I was working on a project with an Arduino Mega. The Arduino was being powered with a 9V battery plugged into the 5v and GND pins on the board. I needed to make some changes to the code, ...
- 111
1
vote
2
answers
602
views
What does a USB stick do on a powered USB port when PC is turned off?
There are USB ports that are powered, even if the Laptop is turned off. AFAIK, those ports have yellow color or they have a USB icon and a battery icon.
It's clear to me that I can e.g. load my phone ...
- 6,085
1
vote
0
answers
60
views
USB mouse switched off when laptop on battery and temperature rises
My USB mouse is disabled when my laptop is running on battery power
and the CPU or GPU temperature rises.
It enables the mouse when the temperature is down
or when I plug in the laptop power cable.
...
- 11
0
votes
1
answer
2k
views
How do I join two USB power sources without blowing anything up? [closed]
I want to have a portable battery that I can charge either with a solar panel, or with a wall outlet. I'm lazy, so I don't want to manually switch any cables to make this happen. Also, the goal of ...
- 1
0
votes
1
answer
2k
views
USB Power consumption in standby v. active
I am trying to work out a power budget for a battery powered device i am making.
I have a USB hub with 4 ports. Each port has a device that needs communications (that is, none of them are for ...
0
votes
1
answer
91
views
How to connect a camera to a Windows PC for charging only?
I have a Xiaomi camera and I want to connect it to Windows PC for charging, but I want the camera to be turned on. There is a feature that you can have the camera enabled without battery - when the ...
- 105
0
votes
1
answer
664
views
Will 14.5 v @ 2.0 Amps harm my MacBook 12
I'd like to charge my MacBook 12 using my PowerBank. I have a PowerBank with adjustable voltage control it has USB output too. Though when I use USB output it draws only 0.5A @ 4.75V on average and ...
- 103