Portable devices that propel baseballs or softballs for batting practice utilize rechargeable battery technology. These devices offer a convenient and flexible alternative to traditional, AC-powered pitching machines, allowing practice virtually anywhere. A common example would be a lightweight unit designed for recreational softball practice in a park setting.
The portability afforded by battery technology significantly expands the possibilities for training. Athletes can refine their hitting skills at their own pace, independent of a dedicated facility or power source. This independence has contributed to a democratization of practice, offering improved accessibility and greater control over individual development. The development of more compact and powerful batteries has also made these machines more practical and efficient over time.