To test our theoretical model, we perform coarse-grained simulations of weakly charged microgels. Similar to the theoretical model, our coarse-grained simulation model is based on the cell model picture, where a single microgel is simulated in a box, whose size is determined by the microgel concentration of the suspension. However, in contrast to the PB model, we use a cubic simulation box and assume periodic boundary conditions, resembling the theoretical picture for low microgel concentrations. In this limit, the electric double layer of a microgel does not interact with its periodic image, since the Debye screening length is much smaller than the box size, κ -1 ≪ L.