Panasonic Ncr21700t Datasheet Hot -
If you are asking about the "hot" data because your batteries are getting hot during use:
Here are key "hot" (thermal / high-temperature / safety) specifications and important electrical/thermal limits from the Panasonic NCR21700T cell datasheet (NCR21700T — high-capacity 21700 Li-ion):
Thermal / "hot" related limits and safety notes:
Charging / high-current thermal guidance:
Safety recommendations (practical):
If you need the full official datasheet PDF (with exact test conditions, graphs, and absolute limits), tell me whether you want a download link or a concise table of the official numeric limits, and I’ll fetch the latest copy.
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You're looking for information on the Panasonic NCR21700T datasheet!
The Panasonic NCR21700T is a lithium-ion battery cell commonly used in various applications, including electric vehicles, renewable energy systems, and consumer electronics.
Here's a brief overview of the Panasonic NCR21700T:
Key Features:
Datasheet Highlights:
Applications:
Keep in mind that datasheets can vary depending on the source and specific product revisions. If you're looking for a detailed datasheet, I recommend checking the official Panasonic website or contacting their support team for the most up-to-date information.
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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:
is a high-capacity 21700 lithium-ion cell, frequently favored for industrial and high-drain applications such as power tools and e-bikes due to its 5000mAh capacity and robust discharge capabilities. Key Specifications Nominal Capacity: 4800–5000 mAh Nominal Voltage: 3.6V
Max Discharge Current: 20A–30A continuous (with short peaks up to 40A) Standard Charge: 2.0A–2.5A (CC-CV) Internal Resistance: ≤14mΩ Thermal & Environmental Performance panasonic ncr21700t datasheet hot
Operating outside these temperature ranges can lead to "hot" running conditions, reducing the cell's lifespan or triggering safety risks.
Discharge Range: -20°C to +60°C. Surface temperatures should ideally not exceed 60°C during high-current operation to avoid degradation.
Charge Range: 0°C to +45°C. Charging at high temperatures (above 45°C) can cause thermal instability. Storage Range: -20°C to +50°C. High-Drain "Hot" Behavior
When pushed to its maximum 20A+ discharge rate, the cell generates significant heat due to ohmic and entropic losses.
Temperature Rise: At a 5C discharge rate, the surface temperature can increase by approximately 45°C in under 10 minutes without active cooling.
Thermal Management: For continuous high-power use, researchers recommend maintaining surface temperatures below 54°C (90% of max limit) to ensure long-term stability.
For detailed technical drawings or verification, you can view the Panasonic NCR21700 Datasheet or check updated safety data via Panasonic Energy Downloads.
Are you designing a battery pack or looking for specific thermal cooling recommendations for this cell? NCR21700 data sheet
Panasonic NCR21700T Datasheet: Everything You Need to Know The Panasonic NCR21700T is a high-performance lithium-ion cell designed for applications requiring high energy density and substantial power delivery. Often associated with electric vehicle technology and industrial power tools, this cell is a top-tier choice for professionals and DIY enthusiasts building battery packs. Core Technical Specifications
The NCR21700T is a "21700" format cell, meaning it has a 21mm diameter and 70mm height. Below are the primary electrical characteristics derived from technical data: Nominal Capacity: 4800mAh to 5000mAh. Nominal Voltage: 3.6V. Charging Voltage: 4.2V. Discharge Cut-off Voltage: 2.5V.
Maximum Continuous Discharge Current: Frequently rated at 15A, though some high-drain variants or specific test conditions cite sustained rates up to 30A. Peak Discharge Current: Up to 40A for short durations. Chemistry: Nickel Cobalt Aluminum Oxide (NCA). Operating Temperatures and Thermal Management
Thermal stability is a critical factor for the NCR21700T, especially in high-drain environments. Operating outside these temperature ranges can significantly degrade the cell's lifespan or lead to safety risks. NCR21700 data sheet If you are asking about the "hot" data
The datasheet incorporates a PTC (Positive Temperature Coefficient) device and a CID (Current Interrupt Device). Under abusive "hot" conditions (e.g., short circuit at 80°C ambient), the PTC activates at approximately 90°C, limiting current to <5A. However, for legitimate high-drain use, the datasheet strongly recommends active cooling: airflow of 2 m/s reduces surface temperature by 40% at 15A. Without such cooling, cycle life drops from 500 cycles (to 80% capacity) at 25°C to just 250 cycles at 45°C.
Let us highlight three critical sections of the datasheet that most users ignore until their device is smoking.
This section covers how the cell behaves under heat and how much heat it generates during use.
The datasheet specifies built-in safety mechanisms to handle "hot" scenarios.
Ignore the marketing. Treat the NCR21700T as a 25A continuous, 35A burst cell. If your application requires 35A for more than 10 seconds, buy a different battery (Molicel P42A or Samsung 40T).
If you are deep into the world of high-performance lithium-ion cells, you have likely typed the phrase “Panasonic NCR21700T datasheet hot” into a search engine. Your results were probably a mix of raw PDFs, vaping forum flame wars, and vague spec sheets.
Why the word hot?
Because the Panasonic NCR21700T operates in a unique and dangerous gray area. On paper, it looks like a monster. In reality, pushing this cell to its limits generates significant heat—and sometimes, a fiery disaster.
In this article, we dissect the official Panasonic NCR21700T datasheet, translate the electrical jargon, and explain exactly why this cell runs hot, where the thermal limits are, and how to use it safely without venting your device.
If you draw more than the rated continuous current (e.g., 20A+):
Rule of Thumb: If the cell is too hot to hold comfortably in your hand (approx 50°C+), you are discharging it too fast for its design.