Panasonic Ncr21700t Datasheet Hot |best| 〈Fully Tested〉

Before we talk about heat, let us look at the cold, hard numbers from the official Panasonic/Sanyo datasheet.

The NCR21700T has a CID (Current Interrupt Device) and a PTC (Positive Temperature Coefficient) thermistor. When the internal temperature hits ~85°C, the PTC increases resistance to stop the current. If you bypass safety circuits, the cell will vent electrolyte. That hot smell is gas escaping. If you hear hissing, throw the device outside immediately. panasonic ncr21700t datasheet hot

3.6V (consistent across discharge cycles for modern brushless motors). Before we talk about heat, let us look

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