Panasonic Ncr21700t Datasheet Hot [patched] -
The NCR21700T runs hotter than the Samsung 40T under identical loads. Why? Higher internal resistance. While the datasheet claims <18mΩ, real-world DC internal resistance (DCIR) often measures 20-24mΩ at room temperature. As the cell heats up, resistance climbs, creating a vicious heat loop.
The Panasonic NCR21700T Go to product viewer dialog for this item.
The cell does not have built-in protection (unprotected), so a robust BMS is required to manage temperature cut-offs. Summary of Thermal Performance
user wants a long article about "panasonic ncr21700t datasheet hot". The keyword suggests they are interested in the Panasonic NCR21700T battery cell, specifically its datasheet and the "hot" aspect. This likely refers to high current, high temperature performance, or it being a popular "hot" item. I need to provide a detailed article. panasonic ncr21700t datasheet hot
The Panasonic NCR21700T utilizes a standard 21700 cylindrical form factor. This format offers a significant increase in energy capacity over traditional 18650 cells with only a modest increase in physical size. 21700 cylindrical cell
The "T" variant is noted for its ability to handle higher current draws compared to standard energy-focused cells.
The is a high-performance, industrial-grade lithium-ion cell designed to meet the extreme power demands of modern high-drain applications . Originally developed for automotive and heavy-duty industrial use, this 21700 cell is often referred to as "hot" in the enthusiast community due to its exceptional 40A peak discharge capability and its frequent use in Tesla battery architectures. Panasonic NCR21700T Core Specifications The NCR21700T runs hotter than the Samsung 40T
This comprehensive technical breakdown serves as the ultimate reference guide to the NCR21700T, compiling verified operational parameters, direct comparisons, and critical safety protocols. Core Specifications Checklist
Many NCR21700T cells found on the market are "reclaimed" or salvaged from electric vehicle modules. These may show signs of removed aluminum wire bonds on the terminals.
For continuous operation below 55°C ambient, derate the 35A limit to 25A . Save the 35A for short 5-second bursts (like taking a hit from a vape or accelerating an e-scooter). While the datasheet claims <18mΩ, real-world DC internal
Cylindrical cells experience internal resistance heating during high-current operations. Managing heat generation is essential for avoiding thermal runaway and preserving cell health. 0°C to +45°C Operating Temperature Range (Discharge): -20°C to +60°C
The datasheet incorporates a 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.
Here are the key features and specifications of the Panasonic NCR21700T:
Thanks to its high capacity and low internal resistance, the Panasonic NCR21700T is widely used across many industries: