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21700 & 18650 Batteries
Buy Genuine Samsung 21700 & 18650 Batteries – High Capacity, Long-Lasting Power

Samsung INR18650-35E Rechargeable Battery – 3500mAh 3.7 V Lithium-Ion Cell
Genuine Samsung INR18650-35E rechargeable lithium-ion battery, 3500mAh capacity and 3.6V nominal voltage. Ideal for laptops, flashlights, e-bikes, power tools, solar storage systems, and medical devices.
Samsung INR21700-50E Rechargeable Battery – 4900mAh 3.7 V Lithium-Ion Cell
Genuine Samsung INR21700-50E rechargeable lithium-ion battery, 4900mAh capacity and 3.6V nominal voltage. Ideal for e-bikes, electric scooters, power tools, solar storage systems, laptops, flashlights, and medical devices.
Why Choose Samsung Batteries?
When it comes to power, reliability, and safety, Samsung 21700 and 18650 lithium-ion cells are among the most trusted batteries worldwide. Here’s why customers choose them:
- 🔋 High Capacity & Performance – Samsung 21700 offers up to 4900mAh, and 18650 up to 3500mAh, delivering long-lasting energy.
- ✅ Certified Quality – 100% genuine Samsung cells with safety certifications and quality assurance.
- 🚲 Wide Applications – Perfect for e-bikes, scooters, laptops, power tools, solar storage, medical devices, and flashlights.
- 📦 Professional Packaging – Full box orders arrive in original Samsung packaging; smaller quantities are carefully repacked for safe delivery.
- 🌍 Trusted Supplier – Backed by PYMI Solar Systems, a UK-based green energy company with expertise in sustainable technology.


About Us
Welcome to 21700-18650Batteries.com – your trusted source for genuine Samsung lithium-ion battery cells. Our focus is simple: to bring you the best-selling Samsung 21700 and 18650 batteries, known worldwide for their quality, reliability, and long cycle life.
These batteries are widely used in e-bikes, scooters, laptops, power tools, flashlights, solar storage systems, and medical devices. Whether you are purchasing for personal use, professional projects, or bulk supply, we deliver only authentic Samsung cells with certified quality and safety standards.
We are part of PYMI Solar Systems (pymi.uk), a UK-based green energy company committed to sustainable technology and renewable solutions. This website is dedicated exclusively to providing customers with the most reliable and in-demand Samsung battery cells.



