Scott, and any others with battery drain woes, Battery drain seems to be a common problem with Deloreans. I too was not satisfied with a cutoff switch or constant trickle charging. After checking the amps being drawn by each fuse, I determined that there were no devices drawing excessive amperage when the car was shut off. I then proceeded to check the connections between the alternator and the battery. Here I discovered that my ground lead from the alternator consisted of a few heavy gauge brown wires with crimp connections on each end. The wires has corroded badly within the crimped connections. Since replacing this ground lead, my battery drain problems are over. If you put a fully charged battery into a Delorean, and it drains without driving it at all, I'd say your problem is likely due to some device drawing current when the car is at rest. If your battery goes dead when the car is used semi-regularly, I reccomend checking all of the connections between the battery and the alternator. As a side note, my voltage meter never indicated any charging problems, even though my battery did not seem to be getting sufficient charge. Hope this helps, Eric Hennebury VIN 17064 <snip> >I too am having the same problems. My battery dies after about 2 days of >sitting. <snip>