Panasonic NCR21700T is a high-performance lithium-ion battery often used in power tools, e-bikes, and flashlights due to its high discharge performance and large capacity. Below are the key specifications and features typically found in its datasheet: Core Specifications : Standard nominal capacity is , with a minimum rated capacity of approximately Nominal Voltage Max Charging Voltage Discharge Cut-off Voltage : Typically
for high-drain performance, though standard industry cut-off is often cited at : Maximum of Промелектроніка Performance & Thermal Limits Discharge Rate
: Designed for high-drain applications. Data indicates stable performance even at continuous discharge rates of 15A to 20A Operating Temperatures : 10°C to +45°C. : -20°C to +60°C. : -20°C to +50°C. Safety Note
: Operating near the upper thermal limit (60°C) during high discharge can trigger protective measures or reduce cycle life. Using a BMS (Battery Management System) is recommended for safe high-drain usage. Промелектроніка Physical Dimensions Form Factor
: 21700 (21mm x 70mm), which offers higher energy density than traditional 18650 cells. Промелектроніка panasonic ncr21700t datasheet hot
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 Storage Temperature
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. Short Term (1 month): -20°C to 50°C Long
If you’ve landed on this page searching for the Panasonic NCR21700T datasheet hot, you aren’t just looking for voltage and capacity. You want the real data. You want the thermal performance, the internal resistance under load, and the truth about whether this 21700 cell can handle high-drain applications without turning your device into a hand warmer.
In the world of lithium-ion cells, the Panasonic NCR21700T is a legend. Co-developed with Tesla for the Model 3, this cell found its way into flashlights, power tools, vapes, and DIY EV conversions. But the keyword "hot" is critical here. This cell runs hotter than its competitors under high continuous discharge. Why? Let’s dissect the official datasheet and real-world test data.
Lab tests from sources like Mooch (battery test guru) and Lygte-info show:
Thus, when searching for "datasheet hot," users are looking for the thermal derating curve—which Panasonic published only in internal revisions, but third-party tests confirm that for safety, you should not exceed 10A continuous if you want the cell to stay below 50°C.