Panasonic Ncr21700t Datasheet [hot] Jun 2026

As a 21700 cell, it provides roughly 50% more capacity and energy than the older 18650 standard, allowing for longer runtimes in the same relative footprint. Market Reality & Identification

The Panasonic NCR21700T datasheet provides detailed information on the cell's performance, characteristics, and safety features. Here are some key aspects to consider:

It is designed to work in temperatures ranging from -20°C to +60°C during discharge, though charging should strictly occur between 10°C and +45°C to prevent damage.

The NCR21700T exhibits a highly linear and predictable discharge curve. panasonic ncr21700t datasheet

The cell must be charged within the temperature range of . Charging outside these limits can cause irreversible damage, including lithium plating on the anode, which reduces capacity and poses a safety risk.

As a result, battery builders and system integrators must rely on secondary sources, aggregated data from reputable resellers, and independent laboratory tests to confirm the cell's true capabilities.

These numbers confirm the NCR21700T as a cell. It is not a “high current” cell like the Samsung 40T (35A), but it excels in applications requiring long runtime with moderate power bursts. As a 21700 cell, it provides roughly 50%

You need a high-capacity 21700 for low-current devices (<3A per cell), long runtime, and minimal self-discharge.

Q: What is the difference between the NCR21700T and other Panasonic battery cells? A: The NCR21700T is a specific lithium-ion battery cell model from Panasonic, offering a unique combination of energy density, cycle life, and discharge rate.

| Parameter | Value | |-----------|-------| | | NCR21700T | | Nominal Voltage | 3.6 V (3.7 V typical in some revisions) | | Typical Capacity | 5,000 mAh (0.2C discharge, 25°C) | | Minimum Capacity | 4,900 mAh | | Nominal Energy | 18.0 Wh | | Standard Charge Current | 1.5 A (0.3C) | | Max Continuous Discharge Current | 15 A (Note: some datasheets list 12.5A at 80°C cutoff) | | Max Discharge (Pulse) | 30 A (< 5 seconds) | | Internal Impedance (AC, 1kHz) | ≤ 30 mΩ (typical ~20 mΩ) | | Charge Voltage (CC/CV) | 4.20 V ± 0.03 V | | Cut-off Discharge Voltage | 2.50 V | | Cycle Life | ≥ 500 cycles (to 70% of initial capacity at 0.5C/0.5C) | | Weight | 69 g (max) | | Operating Temperature (Discharge) | -20°C to +60°C | | Operating Temperature (Charge) | 0°C to +45°C | The NCR21700T exhibits a highly linear and predictable

The headline says 35A Max discharge. But look at the temperature graph. If you actually pull 35A continuously, the cell will hit (194°F) very quickly.

The cell meets or exceeds all primary specs. The only minor discrepancy was higher DC internal resistance (common, as AC IR is always lower).

The is the "muscle car" of 21700 cells. It has massive displacement (capacity) and solid horsepower (amps). It is not the absolute highest discharge cell on the market, but it offers one of the best capacity-to-amperage ratios available.