New style Vertex Universal Batteries. These new style batteries can be used with the all new Vertex Universal charger system. The advantage of the universal charger system is being able to charge several different types of batteries for the different Vertex models. A one charger fits all type of charging system.
Please note these new universal batteries are not compatible with the older style Vertex chargers. If you have an older Vertex VX231 or Vertex VX350 Series radio this new battery will not work with your charger