- Lithium Polymer Battery Pack + Case- Complete with battery pack + all elect. components + case- Fully tested and good working condition- Condition: Used/Refurbished- Warranty: 90 Day*   * Extended warranties available. Click on the link below & add it to the cart.        - 6-Mo.: $150        - 1-Yr.:   $250  Core Return: $100 PaybackIf you want to return your old battery back, we will pay for the shipping & will refund you $100. Please call us at 510-377-1867 or e-mail us at info@enerz.us to arrange the core return.