Panasonic Ncr21700t Datasheet Hot -

Operating these cells at high discharge rates generates significant internal heat. Managing these temperatures is critical for safety and longevity.

: To prevent overheating or permanent damage, it is critical not to discharge below 2.5V . If the surface temperature exceeds 60°C , discharge should be stopped immediately. Common Applications

> 1,000 cycles to 80% capacity (under controlled standard charging) ~66.8 grams Thermal Dynamics & The "Hot" Thresholds panasonic ncr21700t datasheet hot

The discrepancies (especially for max current) can be attributed to several factors:

is mandatory to prevent fire or thermal runaway when pushed to high temperatures. Промелектроніка Performance Characteristics NCR21700 data sheet Operating these cells at high discharge rates generates

: Supports a maximum continuous discharge current of 30A , with peak pulses up to 40A .

Many vapers and flashlight modders run this cell at 30A+ in pulses. The datasheet is clear: . Push it to 20A, and you will see the surface temperature rise from 25°C ambient to over 80°C within 2 minutes. At 85°C, the separator inside the cell begins to degrade, leading to thermal runaway. If the surface temperature exceeds 60°C , discharge

First, the basics. The NCR21700T is a cylindrical lithium-ion cell (21mm x 70mm) built on Panasonic’s famous NCA (Nickel-Cobalt-Aluminum) chemistry.

Buy an infrared thermometer. If the metal can exceeds , stop discharging. The datasheet explicitly states that exceeding 60°C voids the warranty and accelerates aging.