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🔍 PREVIEW MODE – Only you can see this. Back to Admin EduTek Lesson Notes Shop Print PDF Home › SS › Physics › Cells and Batteries SS 2 Cells and Batteries Physics SS 2 Second Term Introduction to Cells and Batteries A cell is a device that converts chemical energy into electrical energy. A battery is a combination of two or more cells connected together. 📌 Key Concepts: Cell: A single unit that produces electrical energy from chemical reactions. Battery: Two or more cells connected in series or [Preview only]