I have AC adapters from a variety of Dell laptops, mostly Latitude, and I can't determine what laptops they will work with.  Some laptops state on the bottom to use XX-XX family adapter, some don't.  The only info I can find on the Dell site references specific DP/N, not the adapter family.  It's even more confusing now that the laptops come with different watt batteries and adapters as options.  Is anyone aware of an AC adapter compatibility list?