Yokomo Co. Ltd.is a Japanese company from Adachi, Tokyo that specialize in radio-controlled cars, it was one of the first manufacturers in Japan to build RC cars and it also invented the RTR (Ready To Run) cars, but the most notable of all is their long-running "Dog Fighter" series of radio controlled buggies, mainly through its successes in racing.
And, we make a list of Yokomo models and click them, you'll find what the battery we recommend you.