  We discuss transport properties of fully spin-polarized triplet
superconductors, where only electrons of one spin component (along a certain
axis) are paired. Due to the structure of the order parameter space, wherein
phase and spin rotations are intertwined, a configuration where the
superconducting phase winds by $4\pi$ in space is topologically equivalent to a
configuration with no phase winding. This opens the possibility of supercurrent
relaxation by a smooth deformation of the order parameter, where the order
parameter remains non-zero at any point in space throughout the entire process.
During the process, a spin texture is formed. We discuss the conditions for
such processes to occur and their physical consequences. In particular, we show
that when a voltage is applied, they lead to an unusual alternating-current
Josephson effect whose period is an integer multiple of the usual Josephson
period. These conclusions are substantiated in a simple time-dependent
Ginzburg-Landau model for the dynamics of the order parameter. One of the
potential applications of our analysis is for moir\'e systems, such as twisted
bilayer and double bilayer graphene, where superconductivity is found in the
vicinity of ferromagnetism.
