Always make sure that the dc connector size is correct otherwise charger might not fit. Few laptop models might require two different size dc pinned chargers so it is your responsibility to look carefully the shape of the pin. The Amps of your laptop should not be higher than charger amperage. Any lower amps will be fine. The detail of input voltage, amps & model number will be printed at the bottom penal of your laptop or under the battery (if removable) but the connector size information will not be available unfortunately.