As long as the wattage is the same or greater and the tip is the same size, you will be fine.  
Hello Looking for a 65 watt charger for my new laptop. Of course I can’t find this model number on dell. HKA65NM201  It is a 4.5mm barrel plug and has that small form factor. This one seems like it would work [URL] but since this is a new dell Inspiron 15 model 5510 doesn’t seem to be listed as compatible. I think the model is too new it’s not listed on any. Under parts support it only gives me memory upgrades for the pc no other accessories. Thanks for any help
Replacement Battery Charger Inspiron 5510