BiNiO3, synthesized at high pressure, has the unusual charge distribution Bi3+0.5Bi5+0.5Ni2+O3 with ordering of Bi3+ and Bi5+ charges on the A sites of a highly distorted perovskite structure at ambient pressure [1]. BiNiO3 shows a transition to a metallic state at 3-4 GPa pressure, and a previous powder neutron diffraction at PEARL/HiPr showed that the pressure-induced melting of the charge disproportionated state leads to a simultaneous charge transfer from Ni to Bi, so that the HP phase is metallic Bi3+Ni3+O3 [2]. Recent measurements have shown that a metal to insulator transition is observed on cooling below 250K at 3.6GPa pressure. To discover whether a predicted Ni-disproportionationed state IV Bi3+Ni2+0.5Ni4+0.5O3 is present at low temperatures we request a further, low T, high P neutron experiment.