My car is being gayer than yours

[meatish]

Alright i am stumped. I just changed my cars battery and now when i turn the key to the accesories position no electronics come on. Not the radio, the clock, no check lights, nothing. When i start the car it has a somewhat hard time starting but it still turns over, however even after it is on no electronics come on. The tach doesn't even come on. It all turns on after i rev it once. after that first rev by me everything clicks on, but it still sounds kinda weak. Someone please help.

thanks
tyler