USB-C to DC barrel 12 Volt adapter tested.
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- Опубліковано 15 жов 2024
- More about the InvisiGig Cellular Gateway at:
invisagig.com/
The description on this product was vague and I wanted to know if this adapter did any step up or step down to reach that 12 volts. They also claim its for 60 to 100 watts like charging your laptop, well lets fins out.
This was brought to my attention by someone who wanted to use this to power the InvisaGig Cellular Gateway, so I also wanted to test that.
This video was super helpful. I biught a USB C to 15V cable and was disappointed when it only delivered 12V from an Anker 20 watt charger. After watching your video I plugged it into a 65 watt charger and got 15V. I never considered that the 20 watt charger was only producing 12V and the cable couldn't step it up. Thank you! I'm planning on replacing some of my big old ugly wall warts with small efficient USB C to DC cables.
@@stephen_LaserLuster you’re welcome
Just because the upstream devices do not yet exist, does not reflect on the plug adapter, they are just stating the max wattage their device can handle.
This is great info! And good video! Thank you for running these tests!
My pleasure!
Would you be able to test a "19V" barrel adapter and see if it steps down from 20V to make it 19V, or if it's actual 20V as stated in the PD spec?
Its going to be 20v. USB C PD has fixed voltages 5v-9v-12v-15v-20v. The trigger boards generally (unless specified) don't have any additional buck/boost to change the voltage.
But was the voltage drop caused by your "cheap" cable?
Probably not since that cable is rated for 100 watts and has charged the battery I am using at 100 watts (20 volts at 5 amps).
Can you please send me link to buy
Waiting
Is this adapter can be use for reverse charging type c devices?
I never tried it in revers, but I would probably say it wouldn’t work. Or I would hope it doesn’t work since based on how the chip they use.
Would like to give this a try to power up my gaming laptop to keep it charged with a powerbank.
Need Output Voltage 19.5V
Output Current 9.23A
Power 180W
Don't think I can do that with a powerbank with a barrel jack !!!!
with my gaming laptop that has a 180w charger, you can charge it with a 65w charger as long as its turned off. if you turn the laptop on the underpowered charger will freak out and repeatedly cut the power to the laptop
No way DC conversion happens so small! It is a plug adapter and a PD trigger, requesting 12V, accepting higher would be unsafe.
PD spec is only 6A
All talk and no one has tested it on a real laptop
Well that’s because most older laptop use 12V and although they claim it works for 12V I can easily prove in my testing that it doesn’t step up the voltage. So it might work, it might not depending on the laptop. If it does charge at a lower voltage it will defiantly be charging slower. Well that and I dont have any older laptops to show it on since I tear down and recycle all the older ones that can not be repaired or repurposed for donation.