IF YOU BUY 2 1G ALIEN LABS OR CONNECTED CARTS, IT WILL COME WITH A SEPARATE RECHARGEABLE ALIEN LABS BATTERY & CHARGER WITH EVERY TWO CONNECTED OR ALIEN LABS 1G CARTS PURCHASED. ($20 RETAIL VALUE!) PLEASE MAKE NOTE ON ORDER TO BE SURE IT IS INCLUDED. *not applicable on 5 and 8 pack deals.