Upgrade Hot Glue Gun From 12volt 20,000mah Battery Rechargeable

Hello friends In this video , I will show you how to upgrade an electric hot glue gun to a 40W , 12vol battery glue gun with a 20,000mah rechargeable battery . ---------------------------------------------- Buy Link : 3D Printer Parts Heater 12V 24V 40W : https://s.shopee.vn/1B1WQDSDmH