Del sol warning lights

[ninzee]

Hey guys i have a 1992 DEL SOL SIR jappy.. and tonight 2 warning lights came on, the battery light, and the one to the right of it which looks like a cat converter with steam coming off it.. not long after my cars electrics slowly begun too die (e.g wpers slowed down, lights dimmed, windows lagged) i think my alternators gone but i just want to see if you guys have any ideas whats wrong.

I also charged the batery and it did nothing..
thanks in advance guys!