Aliwisdom Universal RC Battery Charger Cable with SM 2 Pin Connector Plug for 7.4V 2S Lipo Battery, Compatible with RC Car/Boat/Plane/Drone/Tank/Helicopters and Other Remote Control Toys

I'm sure it did come with a charger. It is in a small box attached to the bottom of the card the blaster was attached to inside the box. If you still can't find it, this is the replacement: https://a.co/d/082MhhMQ