Panasonic Ncr21700t Datasheet ◆

Comprehensive Guide to the Panasonic NCR21700T Lithium-Ion Battery

15A (Without temperature cutoff) / 30A (With strict temperature monitoring under 60°C) Internal Impedance: ≤ 15 mΩ (AC 1kHz) 2. Charge and Discharge Characteristics

Because the NCR21700T is an industrial, unprotected cell, it does not feature an integrated electronic Protection Circuit Module (PCM). Safe deployment relies entirely on external systems. Temperature Thresholds 0°C to +45°C Discharge Temperature Range: -20°C to +60°C Storage Temperature Range: -20°C to +50°C Mandatory External Protections

The Panasonic NCR21700T is a formidable entry in the 21700 form factor (21mm diameter, 70mm length), designed to compete with (and often outperform) the legendary Tesla/Panasonic joint-venture cells. However, unlike Tesla-specific variants, the NCR21700T is available to the general market, making it a favorite among OEMs and advanced builders. panasonic ncr21700t datasheet

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

The Panasonic NCR21700T is a high-capacity 21700-format lithium-ion cell commonly used in energy storage, e-bikes, power tools, and high-capacity battery packs. Below is a concise, shareable post summarizing its datasheet specifications, performance characteristics, and usage considerations.

The “NCR“ prefix in the model name is an important technical indicator. NCR stands for , a cathode chemistry that combines lithium‑nickel‑cobalt‑aluminum (NCA) or lithium‑nickel‑cobalt‑manganese (NCM) formulations. This chemistry delivers: including lithium plating on the anode

The Panasonic NCR21700T requires a CC‑CV (Constant Current / Constant Voltage) charging algorithm, which is standard for lithium‑ion cells:

The "NCR" prefix in Panasonic's nomenclature signifies the use of Nickel-Cobalt-Aluminum (NCA) chemistry as the primary cathode material. Cathode Technology NCA chemistry (

. This translates to lighter, more compact battery packs that last longer between charges. B. High Discharge Capabilities the datasheet provides exact dimensions:

The following table summarizes the complete datasheet specifications for the Panasonic NCR21700T lithium-ion battery cell:

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.

Would you like a comparison of this cell against Samsung 50G or Molicel P42A for your specific project?

While the NCR21700T is often rated as a 15A continuous discharge cell "free in air," the datasheet unlocks its true potential under active thermal monitoring:

For mechanical design, the datasheet provides exact dimensions: