Whats up guys i have a 93 300zx n/a ive had about half a year but finally have the time to put into it atleast for it to start running again haha but yea new alternator my belts is gone to s*** but got a new one going ti relace it soon (the belts are a **** to do so havnt had the time) my wires are pretty exposed i wanna know what could be the problems with that. Ill post pics if you think its necessary.

What?

If the car is running and the voltage across the battery is less than 14 volts, your alternator or its belt needs changing.
If you're getting 14 volts or more, than that means you need a new battery.