What to take? Original adapter or replacement / compatible laptop adapter

[Hansworst]

I need a few adapters for a client of me. I saw these adapters:

Which should i take. Cheap or original? Do you have experience with replacement acer or hp adapter? Please help me.

HP original adapter: http://www.adapterkiosk.nl/?id=orig...-5v-4-9a-center-pin-7-4-x-5-0-mm-ihkikbkiuihi

HP replacement / compatible adapter : http://www.adapterkiosk.nl/?id=hp-compaq-adapter-18-5v-4-9a-90w-center-pin-hp-7-4-x-5mm-ihkikbkiuuio

Also for acer the original acer adapter: http://www.adapterkiosk.nl/?id=originele-acer-19v-4-74a-90w-5-5-x-1-7mm-ihkikbkiuuuu

The replacement acer adapter: http://www.adapterkiosk.nl/?id=acer-adapter-19v-4-74a-90w-5-5-x-1-7mm-ihkikbkiuuub

 

[Ghostman 1]

They just have to have the same specks in order to work right...

 

[carol88]

Once ，I was troubled by the same problem. Later，my friend suggested that I should choose the compatible laptop adapter. It functione very well. Hoping you get the best one ,my friend.