Panasonic Ncr21700t Datasheet [RECOMMENDED]

Tesla’s 2170 cells (used in Model 3) are similar but not identical. The NCR21700T is the commercial version, while Tesla uses a proprietary formulation with slightly higher nickel content.

At ~5000mAh, these are among the highest capacity 21700s you can get. Moderate Power:

High-end flashlights, drones, medical devices, and portable computing.

The cell is charged at a steady current (typically 0.5C or ~2.4A) until the voltage reaches 4.2V. panasonic ncr21700t datasheet

The cell runs safely within acceptable thermal limits without external cooling.

While the cell boasts a high nominal capacity of 4800mAh, its internal resistance is optimized to support high-drain applications. It can comfortably sustain continuous discharge currents up to 15A without significant voltage sag. Under controlled thermal conditions (where cell temperature does not exceed 60°C), peak bursts or elevated continuous discharge up to 20A can be achieved, though this may accelerate cycle degradation. Environmental and Temperature Limits

The NCR21700T is engineered with Panasonic’s proprietary Nickel-Cobalt-Aluminum (NCA) chemistry, which maximizes capacity without sacrificing safety. Specification Technical Detail 4800mAh – 5000mAh Nominal Voltage 3.6V – 3.7V Max Charge Voltage Continuous Discharge Current 10A to 30A (application-dependent) Peak Discharge Current Cycle Life 500 to 1,000+ cycles (at 80% capacity) Dimensions 21.1mm (Diameter) x 70.4mm (Height) Weight ~65.0g – 70.0g Key Performance Highlights Tesla’s 2170 cells (used in Model 3) are

Stops operation if any cell drops below 2.5V.

Lithium Nickel Manganese Cobalt Oxide (NMC) or similar advanced chemistry variants optimization for energy/power balance. Dimensions: 21.1 mm (Diameter) x 70.4 mm (Height) Weight: Approximately 68.0 grams Charging and Discharging Characteristics

Lithium-ion chemistries require strict environmental boundaries to operate safely. The NCR21700T datasheet specifies strict temperature windows for different operational states: 0°C to +45°C Discharge Temperature: -20°C to +60°C Storage Temperature: -20°C to +50°C (less than 1 month) Safety Warnings While the cell boasts a high nominal capacity

Datasheet Analysis and Performance Evaluation Cell Model: NCR21700T Manufacturer: Panasonic Corporation

Similar to the cells used in Tesla Model 3/Y packs (though Tesla uses proprietary variations). High-Power Tools: