HOW TO HARMAN KADON ONYX STUDIO BATTERY UPGRADE

========== battery buy link :) Here&how to add the Onyx Studio battery. It¬ challenging. Everyone can challenge. However, if the product fails, it will not be held responsible. ****************** ** ** ** ** ** I will add the contents. ****************** ** ** ** ** ** We recommend that you use an new battery. Don&use conventional batteries like the video I made. Small capacity battery will not be available In the video I made, I use an existing battery, but it is better to dismantle an existing batter