2 Battery Holder with Plug Jacks

A simple tool for communicating complex workings of electricity, this plastic battery holder is fitted with three banana plug jacks.

• Illustrate DC, series, open, and closed circuits
• Easy switch between selections of DC, 1.5 and 3 V power for your experiments

The holder fits two D-cell batteries and can be used to demonstrate circuits, Ohm's law, and the transformation of energy. Batteries not included.