03 Chevy Tahoe starting issues

[rjenvision]

Hello all! I have recently purchased a 03 chevy tahoe 2 months ago and since its been getting a little cold here in pa Ive notice when I tried to start my truck up for the first time last night it started up kind of weak. the headlights got a little dim. can anyone tell me if this is a battery issue or a altinator issue.

 

[blueflamed03]

sounds like battery. When you first go out in the morning, check volatge at the battery. I bet in the cold night, it's not holding a good charge.