Quick view BLACKCELL Proton 18650 40A Battery (Bulk Discount Available) BLACKCELL Log in for pricing Bulk Price Discount of $0.25 cents Off EACH Battery On All orders over 100 Pieces. Normal Capacity: 3000mAh Max Discharge Current: 40A Continue Discharge Current: 21A 3.7V Log in for pricing Quick view Qty in Cart: 0 Price: Log in for pricing Subtotal: