Tamiya 70148 R20/D/UM1 Compact D Battery Box with Reversible Switch  [70148]

Product overview for Tamiya 70148 R20/D/UM1

The Tamiya 70148 R20/D/UM1 Battery Box Set is a handy power solution for STEM builds and hobby electronics. The holder accepts D size batteries and can be arranged inline or side by side so you can match the layout to your chassis or classroom project.

Construction and performance

Built with steel contact plates, this battery box keeps a steady electrical connection under light load conditions common in model experiments. The built in switch includes a reverse function so you can change motor direction or toggle polarity without rewiring.

Practical uses

Ideal for educational kits and DIY projects where flexibility matters, the box can be combined with extra D holders to extend runtime or raise capacity, making it useful for simple robotics and motor tests.