Panasonic Ncr21700t Datasheet Hot //top\\ Jun 2026

Using it in a high-power e-bike or heavy-duty power tool at generates substantial heat.

The Panasonic NCR21700T Go to product viewer dialog for this item.

If you look at the fine print, Panasonic rates the cell at 35A only if the ambient temperature is controlled and the discharge is cut off at 2.5V. If you let that cell sit in a sealed, non-ventilated enclosure (like a cheap flashlight or a hot garage), you will exceed the 75°C operating surface temperature limit long before the battery is empty. panasonic ncr21700t datasheet hot

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

Let's start with the official specifications. The NCR21700T is a high‑capacity, rechargeable lithium‑ion cell with one of the best energy densities in its class. It is available in two capacity variants: and 5000mAh , with the 5000mAh version being the most common for modern applications. Using it in a high-power e-bike or heavy-duty

Panasonic NCR21700T Go to product viewer dialog for this item. Datasheet: High-Energy 5000mAh 21700 Cell Detailed Overview

When discharged at 15A continuous, the cell temperature will rise significantly. If you let that cell sit in a

Lithium Nickel Cobalt Aluminum Oxide (NCA) type structure Weight: 66.8g (Max) Dimensions: (Flat Top)