95 GP died on the freeway!!! HELP!

Yikes!!! My 95 GP died on the freeway while I was goin about 70mph. Scared the life outta me :shakehead I got it towed back to the house and while I was looking it over, it looks like my "ECM BAT" fuse blew out. I replaced it with another 20 amp fuse and it ran for about 10 mins, then it died again. I checked it out and again, the ecm bat fuse blew. I replaced it with another and it instantly blew out. I think I went through 5 before I gave up :banghead: What could cause my "ECM BAT" fuse to blow up like that??? Any help is greatly appreciated.