Charger for the laptop - which voltage is correct?
While choosing a new charger for your laptop, remember to double check the voltage level of the charger - this parameter should be exactly the same as the one on your original charger.
Is it possible to connect the charger with higher amperage?
You absolutely can. However, it is worth to remember about charger's output voltage (V) - it has to be equal to the one of your original charger.
Is it possible to connect weaker charger to the laptop?
Using a charger with lower amperage than the original one can lead to a list of improper behaviour of the laptop. For example, too weaker charger can be subject to overheating. Because of that, we recommend using chargers with even or higher level of amperage.