Hot: Panasonic Ncr21700t Datasheet

Here's how the Panasonic NCR21700T stacks up against popular alternatives on the market:

The datasheet incorporates a and a CID (Current Interrupt Device) . Under abusive "hot" conditions (e.g., short circuit at 80°C ambient), the PTC activates at approximately 90°C, limiting current to <5A. However, for legitimate high-drain use, the datasheet strongly recommends active cooling: airflow of 2 m/s reduces surface temperature by 40% at 15A. Without such cooling, cycle life drops from 500 cycles (to 80% capacity) at 25°C to just 250 cycles at 45°C.

Due to its 5000mAh capacity and moderate (15A) discharge rating, this cell is ideal for:

Retains approximately 70% to 80% of its initial capacity after 300 to 500 standard charge-discharge cycles, depending on depth of discharge (DoD), discharge rates, and temperature. panasonic ncr21700t datasheet hot

The NCR21700T has a CID (Current Interrupt Device) and a PTC (Positive Temperature Coefficient) thermistor. When the internal temperature hits ~85°C, the PTC increases resistance to stop the current. If you bypass safety circuits, the cell will vent electrolyte. That hot smell is gas escaping. If you hear hissing, throw the device outside immediately.

to see exactly how hot it gets at 20A.

| Cell | Panasonic NCR21700T | Molicel P42A | Samsung 50S | | :--- | :--- | :--- | :--- | | | 4800-5000mAh | 4200mAh | 5000mAh | | Max Discharge | 30A (45A burst) | 45A (60A burst) | 25A (40A burst) | | Typical IR | 12-15 mΩ | 12-15 mΩ | ~12 mΩ | | Best For | High capacity & high performance | Maximum performance | Maximum capacity | Here's how the Panasonic NCR21700T stacks up against

The datasheet specifies a maximum operating temperature of 60°C for the case . If you measure the metal can and it reads 65°C, you are outside of the warranty spec. At 70°C, the separator inside the cell begins to shrink. This is the physical mechanism that causes a short circuit. A hot NCR21700T is not just uncomfortable; it is structurally failing.

The plan includes multiple rounds of searches. Round One involves searching for the datasheet, specification sheet, high current discharge tests, temperature performance, and compatibility with high-drain devices. I will also search for safety datasheets and maximum discharge ratings.

The "hot" designation in your query likely refers to the cell's thermal behavior under load. -20∘Cnegative 20 raised to the composed with power C +60∘Cpositive 60 raised to the composed with power C Without such cooling, cycle life drops from 500

The datasheet clearly defines a safe operating temperature range of . Operating outside this range, especially in high temperatures, can lead to accelerated aging and potential safety risks. However, when used within its limits, the cell's chemistry demonstrates robust thermal stability.

Panasonic NCR21700T Datasheet: Understanding High-Capacity 21700 Performance and Thermal Behavior The Panasonic NCR21700T Go to product viewer dialog for this item.