Panasonic Ncr21700t Datasheet Hot !free! -
2. High-Drain Performance and "Hot" Operation (Thermal Management)
The datasheet boasts 500 cycles to 70% capacity. That is a lie if you run it hot. Look at the fine print: Cycle life tested at 0.5C (roughly 2.2A) at 25°C.
Excellent energy density for long range. High-Power Electric Tools: Requires sustained power. panasonic ncr21700t datasheet hot
. Below are the key specifications and thermal operating limits derived from datasheet reports: Промелектроніка Core Specifications Typical Capacity: Minimum Capacity: 4800–4900 mAh Nominal Voltage: Charging Voltage: Standard Charging Current: 2500 mA (approx. 3 hours) Discharge Cut-off Voltage: Maximum Weight: Промелектроніка Temperature & Thermal Limits
cells due to its 21700 form factor and 5000mAh capacity, finding an official "public" datasheet directly from Panasonic can be difficult as these cells are primarily produced for high-volume industrial and automotive clients. Core Specifications Look at the fine print: Cycle life tested at 0
: During high-rate discharge (e.g., 20A+), internal resistance can cause significant surface temperature increases. For safety, these cells should be monitored to ensure they do not exceed a surface temperature of 60°C during operation.
Heat is generated based on internal resistance and the speed of discharge. The NCR21700T is an , not a Power Cell. This means it has high capacity but does not like "hot" (high amp) loads. The NCR21700T is an
Low internal resistance is a hallmark of the "T" series, which helps minimize heat generation compared to standard high-capacity cells. Common Applications
A challenge when researching the NCR21700T is the wide variety of specifications found online.
At extreme rates like , significant voltage sag occurs early in the cycle due to internal resistance. Designers must adjust low-voltage cutoff parameters to prevent premature equipment shutdown caused by transient voltage dips. Engineering Best Practices for Pack Integration Structural Spot Welding
