Carson: Depending on your car, you could have a 80 amp Ducellier , or a 90 amp motorola alternator. I like all the D' owners have struggled with this problem. I finally designed and built a 140 amp that will virtually eliminate's the problem $195.00 exchange, with a 1 year warr. I'm also working on a 180 amp , that when finished will supply your local power company. If your intrested in the 140, give me a email. John vin 11004 dherv10@xxxx