- You cannot add "Yowoo Graphene Battery 3S 6000mAh 100C 11.1V Lipo Battery XT60 Plug with Metal Plates for Traxxas E-Revo 6s brushless Axial Yeti XL 1/8 E-Revo 2.0 Arrma RC Truck Airplane Helicopter Multirotor Boat" to the cart because the product is out of stock.