3.7V Rechargeable Lithium Battery

3.7 V Rechargeable Lithium Battery – Power Category
This compact, high‑energy lithium‑ion cell delivers a stable 3.7 V output and can be recharged hundreds of times, making it an ideal power source for handheld gadgets, small robots, and DIY electronics projects. Designed for classroom use, the battery introduces students to real‑world energy storage concepts; voltage, capacity, charge cycles, and safety considerations, while giving them a reliable, reusable component they can swap in and out of their own inventions.

Key features

• Nominal voltage 3.7 V, capacity 1200 mAh (typical)
• Built‑in protection circuit against over‑charge, over‑discharge, and short‑circuit
• Fast USB‑C charging (0.5 C) and low self‑discharge (<2 %/month)
• Compact 18 mm × 65 mm form factor, compatible with standard battery holders

By integrating this rechargeable battery into STEAM lessons, students explore the physics of electric potential, the chemistry of lithium‑ion reactions, and the engineering of safe, sustainable power systems. They gain hands‑on experience designing circuits, measuring energy consumption with multimeters, and evaluating trade‑offs between battery life and device performance, key skills that bridge science, technology, engineering, art, and mathematics. The reusable nature of the battery also reinforces concepts of circular economy and responsible resource use, making it a powerful teaching tool for the modern classroom.