Don't recomend for use with celestron star mate6 telescope - Celestron Telescope Car Battery Adapter 18769

This item did not work for my application as the end which attaches to my scope was to small to fit the pin on the scope. I need a power cord with inter changeable ends.theend that fits the scope has a 42 stamped on it.I bought a power cord locally thatplugs into an outlet that has 6 inter changeable ends i need the same type cord that plugs into aport in a car so i can power the scope in the field while i am looking at stars and planets.Celestron gave me the part #18769 but it is to small.