Hot: Panasonic Ncr21700t Datasheet

The datasheet specifies built-in safety mechanisms to handle "hot" scenarios.

Performance reports indicate that testing typically stops if the surface temperature reaches to prevent cell degradation or thermal instability. Discharge Performance Data from the NCR21700 Datasheet shows characteristics for varying current loads: High-Drain Capability: The cell can handle continuous discharge currents of 5A, 10A, 15A, and up to 20A panasonic ncr21700t datasheet hot

Charging a hot NCR21700T is deadly. The datasheet warns against charging below 0°C, but it fails to emphasize: If you attempt to charge a cell that is still hot from discharge (say, 50°C), lithium plating occurs. Needles of lithium metal grow inside, piercing the separator. This leads to an internal short circuit hours or days later—resulting in a fire while the device sits idle on a table. The datasheet specifies built-in safety mechanisms to handle

At 20°C ambient, the NCR21700T datasheet specifies a nominal capacity of 4.0 Ah to 4.2 Ah with a nominal voltage of 3.6V. The "hot" classification arises from its maximum continuous discharge rating: (depending on temperature cutoff settings). Unlike lower-impedance cells (e.g., Molicel P42A), the NCR21700T operates near its thermal limit at 20A. The datasheet explicitly warns that continuous discharge at >15A will elevate the cell surface temperature beyond 60°C , a critical threshold where cycle life degrades exponentially. The datasheet warns against charging below 0°C, but

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