  We report the anisotropy of the upper critical fields mu0Hc2(T) and
thermally-activated flux flow (TAFF) behavior of quenched KxFe2-ySe2. Even
though the post-annealing and quenching process enhances the superconducting
volume fraction, it has a minor effect on the upper critical fields for H//c
and H//ab. Analysis of the angular-dependence of resistivity rho_ab(theta,H)
indicates that it follows the scaling law based on the anisotropic
Ginzburg-Landau (GL) theory and the anisotropy Gamma(T) increases with
decreasing temperature with Gamma(T) ~ 3.6 at 27 K. The resistivity of quenched
sample exhibits an Arrhenius TAFF behavior for both field directions. Field
dependence of thermally activated energy U0(H) implies that the collective flux
creep is dominant in high fields and point defects are the main pinning source
in this regime.
