Energy Siritech

Next-Gen 18650 Sodium Ion Battery Cells

Discover the power of the 18650 sodium ion battery. The future of affordable, safe, and rapid-charging energy storage is here. Available in bulk for custom battery pack assembly.

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High-performance Sodium-Ion (Na-Ion) cells in standard 18650 form factor.

Sample Pack (4 Cells)
₹1,200
  • 3.1V Nominal Voltage
  • 1300mAh - 1500mAh
  • Perfect for Testing
Builder's Choice
DIY Builder Kit (50 Cells)
₹13,500
  • Standard 18650 Size
  • High Rate Discharge (10C)
  • Includes Nickel Strips
Bulk Carton (200 Cells)
₹48,000
  • Factory Grade A Cells
  • Excellent Cold Weather Perf.
  • Fast Charging Capable

Why Switch to an 18650 Sodium Ion Battery?

Although Lithium-ion has dominated the market for years, the new 18650 sodium ion battery technology is rapidly emerging as a superior alternative for stationary storage and low-cost applications. Furthermore, since sodium is abundant and inexpensive compared to lithium, these cells become significantly more cost-effective in the long run.

In addition, safety is a major advantage. Unlike lithium cells, which can be dangerous if over-discharged, Sodium-ion cells can be discharged to 0V for safe transportation. For instance, you can safely transport them without hazardous material restrictions. For detailed comparisons on safety and chemistry, refer to scientific publications such as ScienceDirect's overview.

Performance in Extremes

Moreover, these batteries perform exceptionally well in cold temperatures where LFP and NMC chemistries often struggle. Consequently, they retain over 90% capacity even at -20°C. If you are looking for larger quantities for commercial projects, please check our bulk orders section.

Diagram of a 18650 sodium ion battery cell group
Custom 18650 sodium ion battery pack assembly for electric vehicles

Building Custom Packs

The versatility of the 18650 sodium ion battery allows for easy configuration into larger packs (e.g., 12V, 24V, 48V). Whether you are building storage for a solar project or an electric scooter, these cells offer a familiar form factor with updated chemistry.

Always use a compatible Sodium-ion BMS. Contact our engineering team if you need assistance selecting the right management system for your build.

Frequently Asked Questions

Can I use an 18650 sodium ion battery in my existing lithium device?

No, not directly. Since Sodium-ion cells typically have a lower nominal voltage (3.0V-3.1V) compared to Lithium-ion (3.6V-3.7V), they are not drop-in replacements. Therefore, you must ensure your device or BMS supports the sodium-ion voltage range.

Do I need a special BMS?

Yes, absolutely. Because the voltage curves are fundamentally different, you need a BMS specifically programmed for Sodium-ion chemistry. Otherwise, you risk overcharging or under-utilization.

Order Your Sodium Cells

Secure your supply of the latest battery technology. Bulk pricing available for manufacturers.

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+91 8105644422
Bengaluru, India