A battery power system includes a number of battery modules. The system includes a first power isolation system capable of receiving a first power from a first input port and determining whether the first power is communicated to a first output port, and a second power isolation system capable of receiving a second power from a second input port and determining whether the second power is communicated to a second output port. Thus, steel belted tires provide embedded reinforcement for absorbing higher levels of impact energy without any visible damage to the tread strip or the adjacent car body surface upon which it is affixed.