The Samsung INR21700-58E is a high-capacity lithium-ion cell in the 21700 format, specially designed to offer long battery life while maintaining a stable discharge current. With its 5330 mAh capacity, it is ideal for batteries requiring high energy density, such as packs for electric bikes, portable tools, power banks, powerful lamps, or custom power systems.
Thanks to its INR (NMC) chemistry, this cell offers an excellent balance between performance, safety, and longevity. It is supplied unprotected, making it ideal for assembling professional or DIY systems equipped with a suitable BMS.
Key Features
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Very high capacity of 5330 mAh, ideal for maximizing battery life.
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Continuous discharge current 10.7 A, sufficient for many applications.
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21700 format: better energy density than a conventional 18650.
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Flat-top cell: perfect for custom assemblies or pack repairs.
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Versatile solution for power banks, e-bike batteries, portable storage, etc.
Technical Description
| Specification |
Detail |
| Model |
Samsung INR21700-58E |
| Format |
21700 |
| Rated capacity |
5330 mAh |
| Minimum capacity |
~5170 mAh |
| Nominal voltage |
3.6–3.7 V |
| Maximum load voltage |
4.20 V |
| Recommended minimum voltage |
~2.5 V |
| Continuous discharge current |
10.7 A |
| Chemistry |
Li-ion (INR/NMC) |
| Positive pole |
Flat-top |
| Weight |
Up to 74 g |
| Built-in protection |
No (raw cell) |
