robotgcc 20 Pack 18650 Li-ion Battery 3.7 V 1200 mAh Flat Top | Reliable Power for STEM Education & Team Projects

This 【20】-pack of 18650 Flat Top Li-ion Rechargeable Batteries (3.7V 1200mAh) provides reliable power for robotics, Arduino kits, IoT devices, Raspberry Pi boards, and STEM education.

Each lithium-ion cell is capacity-matched and CC/CV tested, ensuring a true 1200mAh output for consistent and honest performance.

Built with high-density Li-ion chemistry, low internal resistance, and precision nickel terminals, it guarantees efficient discharge, stable voltage, and long cycle life (500+ cycles).

Safety systems include PTC protection, overcharge protection, short circuit resistance, and thermal cut-off vents.

Perfect for powering robotics cars, sensors, RC toys, LED strips, drones, smart modules, and DIY electronics.

These 18650 rechargeable cells support both single-cell and multi-cell configurations (3.7V / 7.4V / 11.1V / 14.8V).

Fully certified under CE, UN38.3, IEC62133, and RoHS, safe for classroom and international use.

The eco-friendly rechargeable design promotes sustainability, reducing waste compared to disposable alkaline or NiMH batteries.

Ideal for makers, hobbyists, teachers, and engineers seeking dependable lithium-ion battery packs for educational or industrial use.

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Designed for STEM classrooms and maker teams, this 20-pack set delivers tested 1200 mAh capacity with ≤ 2 % variation and ≤ 60 mΩ impedance. Ideal for Arduino, Raspberry Pi and DIY control kits. Comes with anti-static bags and barcode-ready labels for Amazon / Noon compliance — perfect for team experiments and education.

• True Capacity + Stable High-Drain Performance Each cell is CC/CV profiled and tested at multiple discharge rates for verified 1200 mAh capacity; low impedance design reduces voltage sag under motor and RF loads; ΔV/ΔIR matching improves pack consistency.
• Multi-Layer Safety + Global Compliance PTC thermal protection, safety vent and nickel tabs provide triple protection; fully certified under UN38.3, IEC 62133, and CE/RoHS for international safety and transport.
• Classroom-Friendly + Reproducible Experiments Clear polarity markings and standard holders fit 1S–4S setups; capacity/impedance labs teach energy-to-heat relationships for STEM students.
• Longevity & Sustainability Delivers 800–1000 charge cycles with ≥85% capacity retention after 500 cycles; cuts long-term energy and waste costs.
• Compatibility + Engineering Practice Standard 18×65 mm fits most holders; use balancing BMS with TVS and fuse for safe DIY and engineering projects.
• Designed for STEM classrooms and maker teams, this 20-pack set delivers tested 1200 mAh capacity with ≤ 2 % variation and ≤ 60 mΩ impedance. Ideal for Arduino, Raspberry Pi and DIY control kits. Comes with anti-static bags and barcode-ready labels for Amazon / Noon compliance — perfect for team experiments and education.