robotgcc 18650 Flat-Top Li-ion Battery 3.7 V 1200 mAh | Lab-Verified True Capacity | Ideal for Research and Long-Term Engineering Projects (50 Pack)

This 【50】-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.

Embedded SEO-rich keywords:

18650 battery, 18650 li-ion battery, 3.7v rechargeable battery, lithium ion rechargeable cell, lithium battery pack, li-ion power supply, true capacity 18650, rechargeable lithium ion battery 3.7v, flat top li-ion cell, rechargeable battery for Arduino, battery for robotics, educational li-ion cell, STEM robotics power source, high drain lithium battery, CE UN38.3 certified battery, IEC62133 lithium battery, PTC protected rechargeable cell, DIY electronics power supply, Arduino robot battery pack, IoT module battery, robotics competition power cell, lithium-ion 3.7v pack, classroom rechargeable battery, sustainable li-ion battery pack. 18650 battery, flat-top li-ion cell, rechargeable 3.7V 1200mAh, IMR chemistry, true capacity cell, certified UN38.3 IEC62133 CE RoHS, low resistance cell, eco battery, STEM education power, Arduino, Raspberry Pi, robotics, DIY energy, LED lighting battery, RC model battery, safe rechargeable pack, high drain lithium cell, laboratory energy source, verified discharge curve, long cycle battery, low self-discharge, recyclable design, educational lab supply, sustainable energy solution, eco-friendly lithium, precision matched cell, flame-retardant ABS shell, nickel terminal, 3.7V 1200mAh flat-top, safe transport, industrial compatible, maker projects, green power, research power, consistent voltage output, 800 cycle endurance, 85% retention, science education, engineering test, robotics competition, energy density 220Wh/kg, real test battery, safe lab cell, educational research, IoT module battery, school project power, physics experiment energy, reliable power cell, high quality lithium battery, rechargeable module, power engineering education, certified safe shipping, renewable design, durable energy cell, smart device power, engineering practice energy, classroom use, verified lab standard, true discharge data, STEM lab use, environment safety battery, DIY electronic battery, scientific validation cell, precision lab battery, portable 3.7V pack, learning experiment battery, sustainable power module, research-grade cell, international safety battery, eco education system, certified laboratory power.

• Each cell is tested under 0.2C discharge, true 1200mAh±5%, maintains 3.7V plateau, high-purity cathodes reduce resistance, 800 cycles retain 85% capacity, stable even at 60°C continuous use.
• Compatible with Arduino, Raspberry Pi, RC models, LED strips, drones, IoT modules, series or parallel configuration for 3.7V–11.1V. Ideal for labs, makers, classrooms, emergency power.
• Certified UN38.3, IEC62133, CE, RoHS, built-in PTC and dual safety vent prevent thermal runaway; ABS flame shell and ultrasonic nickel tabs ensure drop resistance.
• Rechargeable over 800 cycles, nickel-plated terminals resist vibration, >85% capacity retention, perfect for STEM, DIY, industrial sensors, eco projects.
• Eco-conscious recyclable design, low self-discharge for 12-month storage, fits education, labs, R&D, sustainable power training.