We give presentations for the groups PSL(2,p"), p prime, which show that the deficiency of these groups is bounded below. In particular, for p = 2 where SL(2,2") = PSL(2,2"), we show that these groups have deficiency greater than or equal to -2 . We give deficiency -1 presentations for direct products of SL(2,2"') for coprime n,-. Certain new efficient presentations are given for certain cases of the groups considered.