Panasonic Ncr21700t Datasheet Hot Upd File

is a Nickel-based Lithium-ion ternary cell designed for maximum energy density without sacrificing power output. Manufacturer: Panasonic Industry Nominal Capacity: 5000mAh (Typical), 4800mAh (Minimum) Nominal Voltage: 3.6V Maximum Charging Voltage: 4.2V ±plus or minus

The is a high-performance lithium-ion battery cell originally popularized as a primary component in Tesla Model 3 battery packs. While often difficult to find through official retail channels as a standalone consumer product, it is highly sought after in the DIY EV and flashlight communities for its balance of high capacity and discharge capability. Core Specifications

: Supports a maximum continuous discharge current of 30A , with peak pulses up to 40A . panasonic ncr21700t datasheet hot

The NCR21700T is the king of the 21700 hill for raw power. Just remember: when the datasheet says "hot," it isn't bragging. It's warning you.

-20°C to +60°C. High-current draws (above 15A) will generate internal heat rapidly; active cooling is recommended for sustained 30A usage. is a Nickel-based Lithium-ion ternary cell designed for

20A–30A continuous (with short peaks up to 40A) Standard Charge: 2.0A–2.5A (CC-CV) Internal Resistance: ≤14mΩ Thermal & Environmental Performance

While the NCR21700T manages heat relatively well compared to older cells, when it runs "hot" (e.g., 75°C+), the internal resistance rises, leading to increased voltage sag. This means that as the battery gets hotter, it can deliver less power effectively. It's warning you

If operating continuously at high drain, active cooling or proper airflow around the cells is mandatory to keep the temperature below 60°C.

These are the hard limits defined by Panasonic to prevent thermal runaway or permanent degradation.

The best approach is to request it: