Hello

I am experiencing issues with loss of power, battery light coming on and if ac/heat is on the blowers force drops significantly when going over puddles. I am assuming this is from a worn serpentine belt. However I know my battery is weak as it does once and has been living off of a jump...cold weather starts turns over with no issues however it makes a cranking sound. Kinda like the ignition is already on and I turn the key extra. Let me know your thoughts. I have duralast belts coming in tomorrow

 

Definitely sounds like a belt issue to me: when the belt slips the alternator isn't getting spun fast enough to keep the voltage above the minimum threshold, which triggers the battery light. If you know your battery is bad, definitely get that changed out too when you can. There's only one belt on a Fit btw.

 

Probably missing engine shield too!