Abstract:Because of the special working environment, the traditional physical degradation models of the satellitic battery can not suit accurately. In this case, a modeling method using RVM was proposed on the basis of the physical failure analyse of the satellitic battery. Paper introduced the rationale of relevance vector machine (RVM), detailedly ratiocinated the process of RVM regress, and built a practical model integrated with the testing data of batteries. The result showed that the model is veracious and sparse.