Hi and welcome to TSF
What make and model is your laptop?
With the multimeter set on Volts dc, measure the voltage at the jack plug that fits into your laptop dc jack socket. The outer metal part of the plug is usually the negative -Ve and the inner pin the positive +Ve. Saying that with Dells there is a centre pin wich is a data pin, here you measure between the outer metal part to the inner metal part, the inner being positive +Ve. Dont short the +Ve to the data pin.
The voltage you are looking for should be printed on the power block/charger.
What make and model is your laptop?
With the multimeter set on Volts dc, measure the voltage at the jack plug that fits into your laptop dc jack socket. The outer metal part of the plug is usually the negative -Ve and the inner pin the positive +Ve. Saying that with Dells there is a centre pin wich is a data pin, here you measure between the outer metal part to the inner metal part, the inner being positive +Ve. Dont short the +Ve to the data pin.
The voltage you are looking for should be printed on the power block/charger.
