Cover with plastic wrap and refrigerate at least one hour.
Remove chicken from brine and discard water.
Pat chicken dry.
Whisk batter to ensure it's evenly distributed.
In a dutch oven place 3 quarts of oil and heat to 350F.
Place chicken in batter mixture.
Remove and allow excess to drip off.
Place in hot oil carefully and cook for 13-15 minutes.
Cook batches of white and dark meat together.
After 4 min move chicken to be sure it's not sticking together or to bottom the of pan.
Once chicken is golden brown or time is reached remove and check and see if chicken is done.
Use an onstage read meat thermometer to check internal temperature of chicken (at least 160 for white meat and 175 for dark) being sure not to hit the bone.
If internal temperature is good place chicken in a 200F oven to keep warm until all batches are done.