Panasonic Ncr21700t Datasheet Jun 2026

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Never carry loose cells in a pocket; always use a plastic case to prevent short circuits. If you are designing a project with these, I can help you:

reservoir in a robust 21700 package. Designing within the guidelines laid out in this datasheet ensures safe operation, maximum lifecycle efficiency, and top-tier power performance.

The cell can sustain high-drain pulses provided the internal cell temperature does not exceed 60°C (140°F) . panasonic ncr21700t datasheet

The cell retains approximately 70% to 80% of its original capacity after 300 to 500 full charge-discharge cycles (100% DoD at standard currents).

At 21mm in diameter and 70mm in height, it is slightly larger than an 18650 but offers a significantly better ratio of weight to power. The Essay: The Silicon-Anode Frontier

Delivers more watt-hours per kilogram compared to standard 18650 cells. — End of post Never carry loose cells

The specific blend of 4.8Ah capacity and 15A discharge capability makes the NCR21700T highly versatile.

Therefore, while the NCR21700T shares some design heritage with Tesla‘s cells, it should not be assumed to deliver automotive-grade performance.

When integrating the NCR21700T into a project, the electrical and physical limits defined by the manufacturer must be strictly observed. Below is the data compiled from the official Panasonic datasheet. Electrical Characteristics Specification Typical capacity at standard discharge Minimum Capacity Guaranteed minimum rating Nominal Voltage 3.6V – 3.7V Mid-point of the discharge cycle Charging Voltage 4.20V ± 0.03V Maximum safe upper voltage limit Discharge Cut-off Voltage Minimum safe lower voltage limit Standard Charging Current 1.5A to 2.4A Recommended for maximum cycle life Max Continuous Discharge Current 10A to 15A Dependent on thermal management Physical Dimensions & Weight Diameter: 21.1 mm (Maximum) Length: 70.4 mm (Maximum) Weight: Approximately 68.0 grams Terminal Type: Flat top (Unprotected industrial cell) 3. Charging and Discharging Behavior Standard Charge Profile The cell can sustain high-drain pulses provided the

The charger applies a steady 1.41A until the cell reaches 4.2V.

The “21700“ designation indicates a cylindrical cell measuring approximately . Exact measurements are: