Battery Dead problems of the 2007 Jeep Cherokee

Have submitted a complaint before but the problem continues and has gotten worse. My Jeep loses all electrical power and shuts down and restarts itself while driving, occasionally doesn't accelerate past second gear and other times accelerates very slowly, numerous but problem began recurring only days later. Only now my Jeep is additionally at times acting like it wants to shut down but instead is just faltering shaking the whole vehicle violently accompanied by the struggling to accelerate. - electrical system on five occasions all of dash lights came on and went off while I was driving, two of these times the engine stalled and restarted itself. Took vehicle to dealership and was told no problem was found. Numerous electrical issues. The most dangerous have been the prnd lighting up and vehicle not going over 1st or 2nd gear while driving. This has happened to me 7 times now, 4 of which have tried to be diagnosed by the dealer without success of this and gave it to the dealer when they told me 'nothing was wrong' according to their diagnostics. Photo proved otherwise. Also the vehicle has shut itself off twice while I was driving on a busy road. The windows also get stuck and will not work. Have to operate one window to make the other one work. The battery failed and 'transmission over temp" error happened at the same time. Manufacturer's service agent said it was a false readout due to battery failure transmission. This has been a problem since firs started yesterday on 04 /10/2011 I need help my car is in newark NJ.