Ive been using a piece of ribbon to remove my batteries from my kbox mini as oppsed to using my finger nails in the past because i found that method would always leave marks in the positive end of the battery. Recently i got a new set of batteries and continues using the ribbon under the battery and just pulling it out once it needs to be charge. Since the batteries were new, i noticed that the negative ends are getting scratched up quickly and im pretty sure its due to them scraping along the spring in the mod when im taking the battery out. I dont know if this is bad for the battery and if i should go back to clawing the battery out or keep doing this...