Practical factors affecting cycle life include:
The datasheet includes a cycle life curve showing:
Q: What are the safety features of the Panasonic NCR21700T? A: The datasheet highlights several safety features, including overcharge protection, over-discharge protection, and a protective circuit that prevents excessive current flow.
The Panasonic NCR21700T is a high-capacity 3.6V lithium-ion cell, delivering roughly 4800-5000 mAh with a 15A max continuous discharge, frequently used in electric vehicles and high-energy-density applications. These cells, which are often sourced from EV battery packs, have a maximum diameter of 21.35mm and a height of 70.3mm. Access the technical specifications in the Promel PDF datasheet . NCR21700 data sheet panasonic ncr21700t datasheet
The cell features a (flat‑top), which makes it compatible with most device holders and battery compartments designed for 21700 cells. Note that flat‑top cells may not make contact in some devices designed specifically for button‑top cells; users should verify compatibility before use.
German battery forum discussions note that while the cell can theoretically handle 30 A discharge currents, the usable energy drops significantly when discharged at higher rates, particularly if the cut‑off voltage is set above 3.0 V. In other words, the cell is high‑capacity but not truly high‑power; pushing it beyond its rated continuous current will result in diminished performance and potentially reduced service life.
The high capacity makes it ideal as a power source for mobile chargers. These cells, which are often sourced from EV
When integrating the NCR21700T into a project, the electrical and physical limits defined by the manufacturer must be strictly observed. Below is the data compiled from the official Panasonic datasheet. Electrical Characteristics Specification Typical capacity at standard discharge Minimum Capacity Guaranteed minimum rating Nominal Voltage 3.6V – 3.7V Mid-point of the discharge cycle Charging Voltage 4.20V ± 0.03V Maximum safe upper voltage limit Discharge Cut-off Voltage Minimum safe lower voltage limit Standard Charging Current 1.5A to 2.4A Recommended for maximum cycle life Max Continuous Discharge Current 10A to 15A Dependent on thermal management Physical Dimensions & Weight Diameter: 21.1 mm (Maximum) Length: 70.4 mm (Maximum) Weight: Approximately 68.0 grams Terminal Type: Flat top (Unprotected industrial cell) 3. Charging and Discharging Behavior Standard Charge Profile
The voltage is held constant at 4.2V while the current naturally tapers down. Charging is considered complete when the current drops below a designated cutoff threshold (typically 50mA to 100mA). Discharge Capabilities
Before diving into complex charts, here are the headline specifications as listed in the Panasonic NCR21700T technical datasheet: Note that flat‑top cells may not make contact
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.
You can find official product listings and additional business-grade lithium solutions on the Panasonic Energy Business Portal . NCR21700 data sheet
The Panasonic NCR21700T datasheet reveals a high-performance lithium-ion battery cell that offers an impressive combination of energy density, cycle life, and discharge rate. With its compact size, high energy storage, and reliability, this cell is poised to play a significant role in various industries, from electric vehicles and renewable energy systems to consumer electronics and industrial applications.
Understanding its datasheet is crucial for safe and efficient battery pack design. Technical Specifications Overview