ok a few days ago i replaced my battery terminals. went to start my car and lost power instantly. puffs of smoke came from both terminals. battery is good battery fuse is good terminals are correct gonna check the grounds in a min. my battery is in the hatch. any other ideas before i start into it?

 

Double check that you have the wires connected to the right terminal, and then check the BIG fuses under the hood. Sounds like you probably blew the main or alternator fuse under the hood, especially if you have a wire that was connected to the wrong terminal.

On the other hand, a poor/corroded connection (even inside a brand new terminal end) can "arc out" and give off a tiny *poof* of smoke when that little tiny strand of good connection is kinda burned-away because of the current that tried to pass through it.

So basically, just go through all the steps. Clean your terminals and copper wires, make sure the big fuses arent blown, and most importantly, make sure the wires are connected to the correct terminal...do this first, by the way...