how to connect two 9v batteries in series and parallel - science project - diy | DIY pandit
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In this video, you will learn how to connect two 9V batteries in series and parallel step by step. This project helps students understand the difference between series connection (adds voltage) and parallel connection (increases current capacity).

Perfect for school science projects, DIY experiments, and basic electronics learning, this demonstration explains the working principle of circuits, voltage, and current using simple materials.