Rep Power: 0

02 civic ex sedan
after sitting in the freezing Temps overnight the car wouldn't start the next morning. Went to auto zone Checked the battery (bad) and had to get a new one, still doesn't start.
hooked cables up reved the other car while i started mine, i stomped the he11 out the gas pedal and it started. Drove it to auto zone tested the alternator (good). Came home parked it and next day wouldnt start so i took the starter off and tested it (good).
everything checked out fine what else could it be!!!!

 
Rep Power: 222

Bad battery connection most likely

 
Rep Power: 367

remove, clean ground cables at the chassis
check for damaged wires

 
Rep Power: 224

Or something draining your battery overnight.