Avoid storing or discharging the cell in environments exceeding 45°C.
Reaches ~775 Wh/l, making it ideal for compact battery packs.
, hold the voltage constant. The current draw will begin to taper down naturally. panasonic ncr21700t datasheet
The NCR21700T offers roughly 40% more energy than a comparable 18650 cell, making it ideal for applications where maximizing runtime is critical without significantly increasing the battery pack volume.
Understanding its datasheet is crucial for engineers building battery packs for electric vehicles, power tools, and energy storage systems. This article breaks down the technical specifications, performance curves, and safety guidelines found in the official NCR21700T documentation. 1. Key Specifications and Core Parameters Avoid storing or discharging the cell in environments
of one another, preventing weaker cells from overcharging or over-discharging. Final Summary
First, a bit of trivia. This cell is famously known as the "Tesla cell." When Tesla moved from 18650s to 21700s for the Model 3, Panasonic was their primary partner. While Tesla uses a slightly modified chemistry (the "Tesla-specific" variant), the off-the-shelf is the closest you can get to automotive-grade power. The current draw will begin to taper down naturally
The Panasonic NCR21700T is a ternary lithium-ion battery cell designed with a nickel-based positive electrode. Its increased size—21mm in diameter and 70mm in length—allows for substantially more energy storage compared to traditional 18650 cells without a linear increase in weight or volume. NCR21700T Capacity (Nominal): 5000mAh (Typical), 4800mAh (Rated) Nominal Voltage: 3.6V Maximum Charging Voltage: 4.2V Form Factor: 21700 (21mm x 70mm) Weight: ~66.8g – 70g 2. Performance Characteristics (According to Datasheet)
of its initial capacity after 300 to 500 full cycles. To significantly extend this cycle life (to 1,000+ cycles), users can implement conservative charging protocols: Limit upper voltage to instead of
Developed in partnership with Tesla for long-range EV packs; known for high reliability in massive multi-cell configurations. Промелектроніка Промелектроніка