I recently got a new laptop, without a charger. It is a PCSpecialist stuff, then
it does not fit in any big brand company.
First, I need to decide the voltage and current. This is an easy one, for the
data is at the backside of the computer.
Fortunately, someone lent me a universal charger with a bunch of connector and I
could find one that fits into the computer.
They all have a kind of classification, M4, M5, M9, M120…
I found out that the one that fits is the M4, but since I did not find out any
relevant information in the internet about this classification, it was of little
value. It looks like the connector classification is a total mess and each
constructor comes with its own format (see the list of connectors and laptop
models). Too bad PCSpecialist is not generally listed in those lists.
It looks like I need to focus on the inner diameter, the outer diameter and the
presence of a center pin.
The size of your laptop adapter is defined by its Outer Dimension, Inner
Dimension and Center Pin Size (if applicable). These dimensions are measured in
millimeters