5V/2.1A Charging Input 6x 18650 Battery Mobile Powe Bank Case Shell DIY Kit C
Can install 6pcs 18650 battey or 3pcs(must install alternation)(Battery Not Included). It need unprotected 18650 battery 2000-6000MAH. DIY Flat Belt Screw Leather Craft Chicago Nail Brass Solid Rivets Stud Head I.