went to the store came out and had no power, turn key nothing, no electrical all on 2005 GMC Canyon

2005 GMC canyon, no electrical power at all. got out everything was ok. got back in turned key no powder, just clicks, no interior lights, no power locks, nothing. Please Help!

Asked by for the 2005 GMC Canyon
2 answers
Battery may have gone bad. Get a jumpstart and see if the vehicle continues to run when disconnected from other vehicle. If it does, probably your battery. If it stalls after jumpstart, could be an alternator issue.