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.
20A–30A continuous (with short peaks up to 40A) Standard Charge: 2.0A–2.5A (CC-CV) Internal Resistance: ≤14mΩ Thermal & Environmental Performance
Heat is the primary enemy of battery longevity.
But "hot" is not a marketing term; it is a physical reality. If you build a pack with these, you must design for thermal management—nickel strips wide enough to handle current, temperature sensors, and physical spacing for airflow.
Here is where most people stop reading and get into trouble.
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.
20A–30A continuous (with short peaks up to 40A) Standard Charge: 2.0A–2.5A (CC-CV) Internal Resistance: ≤14mΩ Thermal & Environmental Performance panasonic ncr21700t datasheet hot
Heat is the primary enemy of battery longevity. The datasheet incorporates a and a CID (Current
But "hot" is not a marketing term; it is a physical reality. If you build a pack with these, you must design for thermal management—nickel strips wide enough to handle current, temperature sensors, and physical spacing for airflow. Without such cooling, cycle life drops from 500
Here is where most people stop reading and get into trouble.