The nonradiative charge transfer processes in Be2+ (1s2) + H(1s) and B3+(1s2)+H(1s)collisions are investigated by the quantal molecular orbital close-coupling method in the energy range of 10-5eV/u -10 keV/u and by the two-center atomic-orbital close-coupling method in the energy range of 0.1-100 keV/u.The radiative charge transfer cross sections are calculated by using the optical potential and semiclassical methods in the energy range 10-5-100 eV/u.For both collision systems,the nonradiative charge transfer cross sections in the low energy region show an increasing behavior with decreasing the energy.