Panasonic Ncr21700t Datasheet [upd] May 2026

Panasonic NCR21700T — Comprehensive Survey

Executive summary

The Panasonic NCR21700T is a high-capacity 21700-format lithium‑ion cylindrical cell marketed for high‑energy applications that require long run time and reasonable discharge capability. With a nominal voltage around 3.6–3.7 V and a published nominal capacity near 5,000 mAh, the cell represents a class of large-format cylindrical Ni‑rich/NC‑based (NCR-series) chemistries optimized for energy density rather than maximum continuous current. This treatise surveys its specification envelope, internal design and materials implications, electrical and thermal behavior, typical applications, performance tradeoffs, lifecycle and safety considerations, testing and modeling resources, supply/market context, and practical guidance for designers and end users.

In this article, we will extract, explain, and expand upon every critical specification from the official Panasonic NCR21700T datasheet. We will also discuss real-world performance, safety precautions, and common applications. panasonic ncr21700t datasheet

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1. General Specifications at a Glance

Before diving into the nuances, here are the core electrical and mechanical specifications that define the NCR21700T. Summarize a typical datasheet in a concise spec

The Panasonic NCR21700T is a high-capacity lithium-ion cell designed for applications requiring high energy density and reliable performance, such as electric vehicles and portable power systems. Key Specifications Capacity: 4000mAh (typical)