My Laptop uses a 4 PIN DIN Connection and i want to use a Universal Battery but they use a single hole connectrion.

Could any 1 tell me what i should look for to make this happen. What would it be called?

First off you need to determine if the universal ps is
usable with your laptop. What are the voltage and
amperage requirements of your laptop? Your
existing ps should have this on a label.

allcam

That is the battery i want to purchase supports 20volts

Output to my laptop is 20volts 8amps

My mistake, I misread your first post as looking for a strange
connector for a universal ac power supply

Anyways, I believe the connector is called a 4P-HRS-S as depicted
in the lower right hand portion of this page:

http://www.laptoptravel.com/Adapter.aspx?ID=304&t=1

Unfortunately, I can't find just the connector anywhere.