800mAh Capacity. List Of Compatible Braun Oral-B Models HX6500 series, including HX6510, HX6511, HX6530 and others. Series 300 models, including HX9333, HX9343, HX9383 and others. HX9900 series, including HX991B, HX991P, HX991R, HX991W, HX993B, HX993L, HX993S and others.