Panasonic Ncr21700t Datasheet Hot ((new)) -

Panasonic NCR21700T high-capacity lithium-ion cell typically rated at with a nominal voltage of . Below are the key specifications and thermal operating limits derived from datasheet reports: Промелектроніка Core Specifications Typical Capacity: Minimum Capacity: 4800–4900 mAh Nominal Voltage: Charging Voltage: Standard Charging Current: 2500 mA (approx. 3 hours) Discharge Cut-off Voltage: Maximum Weight: Промелектроніка Temperature & Thermal Limits The "hot" or maximum operating temperatures for this cell are critical for safety and performance: Discharge Temperature Range: Charge Temperature Range: Storage Temperature Range: Safety Threshold: Performance reports indicate that testing typically stops if the surface temperature reaches to prevent cell degradation or thermal instability. Discharge Performance Data from the NCR21700 Datasheet shows characteristics for varying current loads: High-Drain Capability: The cell can handle continuous discharge currents of 5A, 10A, 15A, and up to 20A , though higher currents will result in faster voltage drops and increased heat generation. Energy Density: Approximately (volumetric) and (gravimetric). Промелектроніка Typical Applications Due to its high energy density and discharge capability, it is frequently used in: Electric Vehicles (EVs): Similar to those found in Tesla Model 3/Y packs (2170 format). Power Tools & E-bikes:

The Panasonic NCR21700T is a high-performance 21700 lithium-ion cell frequently cited for its balance of high capacity and substantial discharge capability, though it is often noted as being sourced from electric vehicle battery packs (like the Tesla Model 3) rather than being sold as a standalone retail product by Panasonic. Key Specifications Full Product Name : Panasonic NCR21700T Lithium-Ion Battery Nominal Capacity : 4800mAh to 5000mAh Nominal Voltage : 3.6V – 3.7V Maximum Charge Voltage : 4.2V Continuous Discharge Current : Varies by source, typically listed at 30A maximum continuous (with peaks up to 40A) in high-drain applications. Some conservative retail listings suggest 10A–15A for optimal longevity. Operating Temperature (Discharge) : -20°C to +60°C Operating Temperature (Charge) : 0°C to +45°C (Standard) Dimensions : Approximately 21.1mm (Diameter) x 70.4mm (Length) Weight : ~65g – 70g Performance & Thermal Behavior Heat Management : During high-rate discharge (e.g., 20A+), internal resistance can cause significant surface temperature increases. For safety, these cells should be monitored to ensure they do not exceed a surface temperature of 60°C during operation. High Drain Performance : Testers from community forums like Endless Sphere note that these cells maintain stable voltage even under heavy loads, making them popular for DIY EV projects and high-power flashlights. Cycle Life : Rated for over 1,000 cycles under standard conditions before significant capacity loss. Safety Note This is an unprotected (flat top) cell. It does not have a built-in protection circuit (PCM/PCB) and must be used with external battery management systems to prevent overcharging, over-discharging, and short circuits.

Max Continuous Discharge Current: 30A - 35A (depending on thermal management) Peak Discharge: Capable of higher bursts, though this significantly increases heat. End-of-Discharge Voltage: 2.5V (Standard cut-off) Thermal & Safety Guidelines The "hot" designation in your query likely refers to the cell's thermal behavior under load. Operating Temperature (Discharge): -20∘Cnegative 20 raised to the composed with power C +60∘Cpositive 60 raised to the composed with power C Surface Temperature Limit: It is critical to ensure the cell surface does not exceed 70∘C70 raised to the composed with power C 80∘C80 raised to the composed with power C during high-drain operation to prevent permanent degradation or thermal runaway. Internal Resistance: Low internal resistance is a hallmark of the "T" series, which helps minimize heat generation compared to standard high-capacity cells. Common Applications Due to its high discharge rate and 4800mAh capacity, it is frequently used in: High-end power tools. Electric Vehicles (EVs) and E-bikes. High-performance flashlights. Custom battery packs for robotics. Warning: Lithium-ion cells can be dangerous if mishandled. Always use a high-quality Battery Management System (BMS) and ensure the cells are properly insulated when building packs.

Introduction The Panasonic NCR21700T is a high-performance lithium-ion battery cell designed for various applications, including electric vehicles, renewable energy systems, and industrial power tools. In this guide, we will explore the key features, specifications, and characteristics of the NCR21700T battery cell based on its datasheet. Overview of Panasonic NCR21700T The NCR21700T is a 21mm x 70mm cylindrical lithium-ion battery cell with a nominal voltage of 3.7V and a capacity of 4000mAh. It features a high discharge rate, long cycle life, and excellent thermal stability, making it suitable for demanding applications. Key Features and Specifications Here are the key features and specifications of the Panasonic NCR21700T: panasonic ncr21700t datasheet hot

Capacity : 4000mAh (typical), 3800mAh (minimum) Nominal Voltage : 3.7V Maximum Discharge Current : 20A (continuous), 30A (pulse) Maximum Charge Current : 10A (continuous), 20A (pulse) Cycle Life : ≥ 500 cycles (80% capacity retention) Self-Discharge Rate : ≤ 3% per month (at 25°C) Operating Temperature : -20°C to 60°C (charge/discharge) Storage Temperature : -20°C to 25°C (≤ 1 year)

Datasheet Parameters Here are some key parameters from the Panasonic NCR21700T datasheet: | Parameter | Value | | --- | --- | | Nominal Capacity | 4000mAh | | Internal Resistance | ≤ 10mΩ | | Weight | approximately 44.5g | | Dimensions | 21mm x 70mm | Thermal Characteristics The NCR21700T has a high thermal stability, which is essential for safe and reliable operation. Here are some thermal characteristics:

Operating Temperature Range : -20°C to 60°C Thermal Shutdown : 80°C (typical) Heat Shrinkage : ≤ 5% (at 80°C for 2 hours) Discharge Performance Data from the NCR21700 Datasheet shows

Protection and Safety Features The NCR21700T has built-in protection and safety features:

Overcharge Protection : 4.25V (typical) Over-discharge Protection : 2.5V (typical) Current Limiting : 20A (continuous), 30A (pulse)

Applications The Panasonic NCR21700T is suitable for various applications: Power Tools & E-bikes: The Panasonic NCR21700T is

Electric Vehicles : power tool batteries, electric bicycles, and scooters Renewable Energy Systems : solar and wind power systems Industrial Power Tools : cordless power tools, robots, and automated guided vehicles

Conclusion The Panasonic NCR21700T is a high-performance lithium-ion battery cell with excellent characteristics, making it suitable for demanding applications. This guide provides a comprehensive overview of the NCR21700T datasheet, highlighting its key features, specifications, and thermal characteristics. When designing or selecting batteries for your applications, refer to this guide and the official datasheet for accurate and up-to-date information.