We reconsidered the quantum gravity description of the near horizon extremal Reissner-Nordstrom black hole in the viewpoint of the AdS(2)/CFT(1) correspondence. We found that, for pure electric case, the right moving central charge of dual 1D CFT is 6Q(2) which is different from the previous result 6Q(3) of left moving sector obtained by warped AdS(3)/CFT(2) description. We discussed the discrepancy in these two approaches and examined novel properties of our result.
