If it has a good battery now, and the system is working, a spare won't be necessary. Also, batteries tend to die when they are sitting around. To keep it good, you would need to get it out and charge it once in a while. Paul In a message dated 6/30/2004 6:48:53 PM Eastern Daylight Time, Jhale7572@xxxxxxx writes: >We just got a 1950 Chrysler Imperial. My husband is going to buy a battery >to have in the car just in case. Do you think it is necessary? > >We still have a lot to learn. Need to find a jack too. > >Fred and Jan Hale >Central New York >1950 Chrysler Imperial >