Cell Type: 18650 format lithium-ion rechargeable cell. Nominal Voltage: 3.60 V. Typical Capacity: ~3450 mAh (minimum ~3350 mAh). Dimensions: Diameter ≈ 18.50 mm, Height ≈ 65.30 mm (max with tube) Weight (max): < ~49.5 g.
Max Charge Voltage: 4.20 V. Discharge Cut-off Voltage: ~2.50 V. Max Continuous Discharge Current: ~10 A. Operating Temperature Range:
Charge: +10 °C to +45 °C
Discharge: –20 °C to +60 °C Energy Density (approx.): ~693 Wh/L volumetric, ~224 Wh/kg gravimetric.
Design BMS to support 10 A continuous load, since that's the rated discharge spec.
Include voltage cutoffs: over‑voltage at 4.2 V, under‑voltage around 2.5 V to prevent deep discharge.
Even though the cell is “unprotected,” thermal management is important because of heat generation at higher loads; include temperature sensing if the pack is high‑power.
How does this cell behave in low-temperature or harsh environments?
Rated discharge down to –20 °C, per datasheet.
If your application involves cold environments, account for increased internal resistance, potential voltage sag, and reduced capacity.
What are mechanical design / packaging considerations?
Cylindrical 18650 cell: 18.5 mm diameter, ~65.3 mm height (with insulation).
Because of moderate discharge rating (10 A) and high energy, cell matching (voltage / IR) is helpful for pack balancing and efficiency.
What are common industrial / application use cases?
Energy storage systems (ESS) / power banks where long run-time is critical.
E-bikes or e-scooters with moderate to high runtime demands.
Backup power / UPS where capacity matters more than extreme discharge.
Portable equipment and tools that draw moderate sustained current.
What are the trade-offs or limitations of this cell?
High capacity but limited to 10 A discharge — it’s not suited for very high‑current applications.
Compared to high‑drain cells, it may generate more voltage sag under load.
Fast charging beyond spec may reduce cycle life; design your charging strategy with margin.
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