asked on
65W PD charger can't charge laptop
https://nerdtechy.com/pd-3-qc-3-difference
Link above said PD is to charge laptop but
using a GAN 65W charger that has 2 output
ports, 1 labelled PD & 1 QC3.0, was not
able to charge my Fujitsu lifebook u7410
from the PD port (connected to 240V 13A
wall power outlet) using a 100W-supported
cable.
The very same cable could charge this very
same laptop when the cable connects from
a Baseus 65W power bank to the very same
Type-C port on the laptop.
Q1:
What's the cause the charger can't charge
the laptop? The charger is:
the very same charger's PD port & cable could charge
power banks though.
Q2:
For a dumb power bank (that doesn't have intelligent
circuits in it to adapt input power), does the PD or QC3
charge the power bank faster?
https://www.eevblog.com/forum/projects/dell-3330-laptop-adaptor-with-1-wire-comms!/
It's possible (though I cannot confirm it from personal knowledge) that Fujitsu has also adopted OneWire verification for chargers.
ASKER
>Fujitsu has also adopted OneWire verification for chargers.
But that Lifebook charges fine from a Baseus 65W powerbank
that uses the same Type C cable into its Type C port. Note that
this Fujitsu Type C port is not an outlet (ie not for connecting
phones to it to charge the phones)
ASKER
>So what did you do to make the powerbank work?!?
The moment I got the Lifebook from our PC support
team, I didn't have to do anything other than plug in
a type C (both ends) cable from the Baseus to the
Lifebook's type C port.
Btw, my objective here is to find a mini lightweight
charger that could connect from power supply on
wall to the Lifebook
ASKER
Ok cost is the key factor.
Would these 2 from Amazon charge my Lifebook?
The reviews say it works. However, it's still a factor of triple the price difference between those and the current norms.
That means, if you can buy an i7 laptop for a 1000 bucks, and you come here telling us you found the same deal for 333 bucks (which frankly, is barely enough to buy the most garbage Celeron laptop). It's possible, but highly unlikely. And if it is possible, corners were cut (in the safety department).
ASKER
> you cannot charge the laptop through them.
I was able to charge that laptop via the same Type
C port using the same cable connected to a Baseus
65W 30000mAh powerbank.
The price difference of US$4 vs US$28 (the charger
you suggested) is quite a big difference. Besides,
I was hoping a tiny charger like the one I got from
Aliexpress works as it's much lighter (20% of the
weight of the charger you indicated: I actually have
the original Fujitsu charger of that size/built) &
much more compact (taking less space)