what do i need to know about laptop charger before buying it?
-> my laptop is dell inspiron i5 5567 laptop.
-> my charger specifications are 19.5V,3.34A,65W.
It is positive polarity adapter.
-> How do I know if it is small pin or large pin? (I am ordering online so need to know it) It seems like it is 4.5 mm.
-> The service tag is 8BNWK22