: 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
While powerful, users should note that these are usually "flat-top" cells and may require specific adapters or spacers for use in standard consumer flashlights. panasonic ncr21700t datasheet hot
: Approximately 21.1mm in diameter and 70.4mm in length (Flat top style). Thermal & Safety Characteristics : Operating near the upper thermal limit (60°C)
If you are asking about the "hot" data because your batteries are getting hot during use: panasonic ncr21700t datasheet hot