Question Does DME gets reset when you disconnect the battery >few minuates?
Answer: Yes, indeed, so you'll loose the DME adaptation settings.
Note: For those with VF Engineering supercargers with GIAC DME software, this means you'll loose GIAC adaptation settings as well. And according to GIAC and VFE, they recommend breaking in the software for next ~100 miles. And that means, take it easy for next ~100 miles, nothing fancy RPM'ing. That's all.