want to use usb c GAN charger PD 2.0 for laptop - need info from those in the know


perfection

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windows 11 64 bit
My laptop has a USB C PD 2 charging capable port
Currently using a 19V/2.1A brick adapter for power supply

Query one
What specifications must i look for in the usb c pd 2 charger that i buy to charge from the laptop usb c port that will supply the above voltage and current and wattage power that will not damage anything within the laptop? will any branded 65W charger work with or without PPS?

Can i use the above continuously plugged in like i do my brick adapter in the absence of the internal battery

Query two
i have another brick adapter with a USB c pin which i use for power/charging with my lenovo yoga whose specs are output ; 20V=2 A | 15V - 3A | 9V = 2A | 5V = 2A - will this work without issues? is this same as a PD 2 usb c charger?

Thank you for any help on this. I am not very familiar with these things
 

My Computer

System One

  • OS
    windows 11 64 bit
    Computer type
    Laptop
    Manufacturer/Model
    HP x360 cd
    CPU
    intel i5 8th geeneration
    Memory
    16GB
    Screen Resolution
    1920
    Hard Drives
    one 500 GB SSD plus 1 TB hdd (2.5 inches)
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    inbuilt
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    inbuilt trackpad
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    500 Mbps
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So many crap ones out there. My understanding after researching for my old laptop is that the laptop will only pull in as much as it needs. I ended up having to buy 2 because the first was rubbish.

This one can charge my old Dell laptop and my new Lenovo Yoga (Fast Charging) if I am away. At the same tiime charging other devices etc. Even two laptops simultaneously.

It comes with multi Country plug requirements and an extension cable if wanted.
Short Circuit protection.
Over Voltage protection

This is brilliant for my needs.

Click image to open product page. (This is an Australian link and price)

IMG_4470.jpeg
 
Last edited:

My Computers

System One System Two

  • OS
    Windows 11 Pro 23H2 Build: 22631.3593
    Computer type
    PC/Desktop
    Manufacturer/Model
    Sin-built
    CPU
    Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz (4th Gen?)
    Motherboard
    ASUS ROG Maximus VI Formula
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    32.0 GB of I forget and the box is in storage.
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    2 x WD something Something 8TB HDD's / 2 x WD something Something 4TB HDD's / 1 x EVO 1TB SSD / 2 x QVO 1TB SSD's / 1 x EVO 250 GB SSD / 2 x QVO 1TB (External Hub) / 1 x EVO 1TB (Portable Backup Case)
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    Silverstone 1500
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    NZXT Phantom 820 Full-Tower Case
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    Noctua NH-D15 Elite Class Dual Tower CPU Cooler / 6 x EziDIY 120mm / 2 x Corsair 140mm somethings / 1 x 140mm Thermaltake something / 2 x 200mm Corsair.
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    All sorts
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    I’m on a horse.
  • Operating System
    Windows 11 Pro 22621.2215
    Computer type
    Laptop
    Manufacturer/Model
    LENOVO Yoga 7i EVO OLED 14" Touchscreen i5 12 Core 16GB/512GB
    CPU
    Intel Core 12th Gen i5-1240P Processor (1.7 - 4.4GHz)
    Memory
    16GB LPDDR5 RAM
    Graphics card(s)
    Graphics processor is an Intel Iris Xe
    Sound Card
    optimized with Dolby Atmos®
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    QHD 2880 x 1800 OLED
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    M.2 512GB
    Other Info
    …still on a horse.
I assume your device can be charged via USB .... (he asks, embarrassingly red-faced after buying similar without first checking ...)
 

My Computers

System One System Two

  • OS
    Windows 11 22H2 (latest update ... forever anal)
    Computer type
    PC/Desktop
    Manufacturer/Model
    HP Slim S01
    CPU
    Intel i5-9400
    Memory
    8GB
    Graphics Card(s)
    NVIDIA GeForce GT730
    Sound Card
    OOBE
    Monitor(s) Displays
    Acer 32"
    Screen Resolution
    1920x1080
    Hard Drives
    2 x 1TB SSDs
    PSU
    OOBE
    Case
    OOBE
    Cooling
    OOBE
    Keyboard
    Logitech wireless
    Mouse
    Logitech wireless
    Internet Speed
    Classic Australian w.a.p.
    Browser
    Brave
    Antivirus
    KIS
  • Operating System
    Windows 11 Pro (latest upadte ... anally always)
    Computer type
    Laptop
    Manufacturer/Model
    HP Pavillion 15
    CPU
    i7-1165G7 @ 2.80GHz
    Graphics card(s)
    Intel Iris Xe Graphics
    Hard Drives
    Samsung NVMe 512GB
    + numerous/multiple SSD Type C USB enclosures
    Internet Speed
    NBN FTTN 50
    Browser
    Brave
    Antivirus
    KIS
First, I assume that you have verified that your laptop is capable of being charged via a USB-C port. Just because a machine has a USB-C port(s), this does not necessarily mean that the system is capable of being charged via that port.

Since your system uses a 19V AC adapter, what you are looking for is a USB-C charger capable of outputting 19V at a minimum of 2.1A or 40 Watts (19V multiplied by the current of 2.1A = 39.9 Watts).

As @antspants correctly noted, the system will only draw as much current as it needs, so getting an adapter capable of outputting more than 40W will not hurt it at all.

Think of it like your water faucet. The lake or reservoir supplying your home is likely able to deliver millions of gallons, but that doesn't mean that every time you turn your faucet on you get millions of gallons of water. The amount of water delivered is limited by the carrying capacity of the pipes. Likewise, your laptop will not draw more power than it is designed to draw.

Advantages of using a smaller wattage adapter (so long as it still meets the minimum requirements of the system): Small size for portability

Advantages of using a larger wattage adapter: If your power supply has more than one connector, you can charge both your laptop and other device(s) at the same time. Also, some laptops are notoriously cheap with their factory provided chargers. As an example, I have a laptop that came from the factory with a 65W adapter, but the user guide notes that you can charge the laptop faster using a 100W+ adapter. So it's possible that you could get faster charging with a more capable adapter, but you will still be limited in how much power you draw from that adapter.

On the same laptop that I just mentioned, I use a 120W adapter. This allows me to charge my laptop and a phone at maximum speed simultaneously and the adapter I have now is still smaller than the 65W adapter that came from the factory.

Some other notes: 19V (or 20V, consider them to be the same) is pretty much a universal for laptops. As a result, pretty much every USB charger is capable of outputting 19V. However, please be aware that if you are reading this and have a system that uses 12V rather than 19V or 20V, you need to be very careful that the USB-C charger you get actually has the capability of outputting 12V. 12V is not used as often as 19V and as a result many USB-C chargers have no provision for outputting 12V.

In summary: Make sure that the USB-C charger that you get can output the correct voltage for your system (19V for your system) and that it can output a minimum of 2.1A for a total wattage of 40W. A higher wattage output capability is perfectly fine, just be aware that chargers with the ability to output more power will be larger in size and price.
 

My Computers

System One System Two

  • OS
    Win11 Pro 23H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Home Built
    CPU
    Intel i7-11700K
    Motherboard
    ASUS Prime Z590-A
    Memory
    128GB Crucial Ballistix 3200MHz DRAM
    Graphics Card(s)
    No GPU - CPU graphics only (for now)
    Sound Card
    Realtek (on motherboard)
    Monitor(s) Displays
    HP Envy 32
    Screen Resolution
    2560 x 1440
    Hard Drives
    1 x 1TB NVMe Gen 4 x 4 SSD
    1 x 2TB NVMe Gen 3 x 4 SSD
    2 x 512GB 2.5" SSDs
    2 x 8TB HD
    PSU
    Corsair HX850i
    Case
    Corsair iCue 5000X RGB
    Cooling
    Noctua NH-D15 chromax.black cooler + 10 case fans
    Keyboard
    CODE backlit mechanical keyboard
    Mouse
    Logitech MX Master 3
    Internet Speed
    1Gb Up / 1 Gb Down
    Browser
    Edge
    Antivirus
    Windows Defender
    Other Info
    Additional options installed:
    WiFi 6E PCIe adapter
    ASUS ThunderboltEX 4 PCIe adapter
  • Operating System
    Win11 Pro 23H2
    Computer type
    Laptop
    Manufacturer/Model
    Lenovo ThinkBook 13x Gen 2
    CPU
    Intel i7-1255U
    Memory
    16 GB
    Graphics card(s)
    Intel Iris Xe Graphics
    Sound Card
    Realtek® ALC3306-CG codec
    Monitor(s) Displays
    13.3-inch IPS Display
    Screen Resolution
    WQXGA (2560 x 1600)
    Hard Drives
    2 TB 4 x 4 NVMe SSD
    PSU
    USB-C / Thunderbolt 4 Power / Charging
    Mouse
    Buttonless Glass Precision Touchpad
    Keyboard
    Backlit, spill resistant keyboard
    Internet Speed
    1Gb Up / 1Gb Down
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    Edge
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    WiFi 6e / Bluetooth 5.1 / Facial Recognition / Fingerprint Sensor / ToF (Time of Flight) Human Presence Sensor
I assume your device can be charged via USB .... (he asks, embarrassingly red-faced after buying similar without first checking ...)
Thank you for your encouraging reply idgat

No i did not BUY the other charger - i possess it because it came with my SECOND laptop. so was checking whether it would substitute/replace the brick adapter that has malfunctioned which belongs to my FIRST laptop
 

My Computer

System One

  • OS
    windows 11 64 bit
    Computer type
    Laptop
    Manufacturer/Model
    HP x360 cd
    CPU
    intel i5 8th geeneration
    Memory
    16GB
    Screen Resolution
    1920
    Hard Drives
    one 500 GB SSD plus 1 TB hdd (2.5 inches)
    Keyboard
    inbuilt
    Mouse
    inbuilt trackpad
    Internet Speed
    500 Mbps
    Browser
    Edge chromium
    Antivirus
    Defender
FYI, you can use a USB-C PD charger with laptops that DON'T support USB charging by purchasing an inexpensive PD trigger cable.

As an example, I have an old HP laptop for which the power brick died. The original brick was a 19V 100W model with a barrel jack. I was able to purchase a PD trigger cable with a 19V output with the correct barrel jack so now I can use that laptop with any USB-C PD charger that outputs 100W or more.

This actually worked so well that I purchased PD trigger cables for other laptops even where my original power brick works fine so that I can now power all of them from USB-C chargers.

More Information

USB-C PD chargers use PD (the Power Delivery protocol) to negotiate a voltage to be used. For example, when you plug a charger into your laptop, the two devices "talk" to each and negotiate the use of 19V. A PD trigger cable does this for you. It talks to the PD charger and tells it to output 19V. Note that there are PD trigger cables capable of outputting other voltages than 19V so make sure to use one that triggers 19V specifically.
 

My Computers

System One System Two

  • OS
    Win11 Pro 23H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Home Built
    CPU
    Intel i7-11700K
    Motherboard
    ASUS Prime Z590-A
    Memory
    128GB Crucial Ballistix 3200MHz DRAM
    Graphics Card(s)
    No GPU - CPU graphics only (for now)
    Sound Card
    Realtek (on motherboard)
    Monitor(s) Displays
    HP Envy 32
    Screen Resolution
    2560 x 1440
    Hard Drives
    1 x 1TB NVMe Gen 4 x 4 SSD
    1 x 2TB NVMe Gen 3 x 4 SSD
    2 x 512GB 2.5" SSDs
    2 x 8TB HD
    PSU
    Corsair HX850i
    Case
    Corsair iCue 5000X RGB
    Cooling
    Noctua NH-D15 chromax.black cooler + 10 case fans
    Keyboard
    CODE backlit mechanical keyboard
    Mouse
    Logitech MX Master 3
    Internet Speed
    1Gb Up / 1 Gb Down
    Browser
    Edge
    Antivirus
    Windows Defender
    Other Info
    Additional options installed:
    WiFi 6E PCIe adapter
    ASUS ThunderboltEX 4 PCIe adapter
  • Operating System
    Win11 Pro 23H2
    Computer type
    Laptop
    Manufacturer/Model
    Lenovo ThinkBook 13x Gen 2
    CPU
    Intel i7-1255U
    Memory
    16 GB
    Graphics card(s)
    Intel Iris Xe Graphics
    Sound Card
    Realtek® ALC3306-CG codec
    Monitor(s) Displays
    13.3-inch IPS Display
    Screen Resolution
    WQXGA (2560 x 1600)
    Hard Drives
    2 TB 4 x 4 NVMe SSD
    PSU
    USB-C / Thunderbolt 4 Power / Charging
    Mouse
    Buttonless Glass Precision Touchpad
    Keyboard
    Backlit, spill resistant keyboard
    Internet Speed
    1Gb Up / 1Gb Down
    Browser
    Edge
    Antivirus
    Windows Defender
    Other Info
    WiFi 6e / Bluetooth 5.1 / Facial Recognition / Fingerprint Sensor / ToF (Time of Flight) Human Presence Sensor
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