Spilt coffee on ps3 wireless pad

Hi there as listed in title I have had an accident with ps3 wireless controller and a cup of coffee and now it will not turn on or charge or anything really. I have split open and tried to clean insides buttons, board etc with cotton buds and alcohol gel best i could which has got rid of the stickyness and loosend up buttons but still nothing happening power wise ie won't turn on light up or charge , is there anything I can do to try and fix it or is it a case of buying a new pad? Cheers