This combo is not suggested to use 3s 11.1v battery, it will be easily burned. Item Name:Brushless Combo set(upgraded parts). Material:Metal and plastic. Compatible Models:Wltoys 144001 124018 124019 1/14 rc car vehicles models. Shaft Diameter:3.175mm. Length of Extended Shaft:15mm. Connector:4.0mm gold. Battery:2-3S Lipo or 4-9 cells NiMH. BEC Output:5V/3A(switch mode). ESC Weight:About 72g. Connector:4.0mm gold […]