Datasheet Hot — Panasonic Ncr21700t

If your device feels "too hot to hold" (approx. 55°C), the cell is already past its comfort zone. The datasheet "hot" rating is for engineering tolerance , not for human comfort .

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.

Was this information helpful? Do you have any specific questions or use cases you'd like to discuss? panasonic ncr21700t datasheet hot

: Varies by source, typically listed at 30A maximum continuous (with peaks up to 40A) in high-drain applications. Some conservative retail listings suggest 10A–15A for optimal longevity. Operating Temperature (Discharge) : -20°C to +60°C Operating Temperature (Charge) : 0°C to +45°C (Standard)

While not a "true" ultra-high-discharge cell (like the Molicel P42A), the 20A-30A capability is sufficient for high-drain power tools, personal electric vehicles (PEVs), and high-power flashlights. 5. Typical Applications Panasonic NCR21700T is a versatile cell used in: If your device feels "too hot to hold" (approx

: If a pack design pulls a continuous 30A load, the surface temperature can escalate rapidly. Pack layouts must integrate an active Battery Management System (BMS) with thermal cutoffs configured at 60°C to prevent localized cell degradation.

Under sustained 10A–15A discharge, the cell temperature can climb into the pretty fast, especially if there’s no active cooling. The datasheet’s own discharge curves show significant voltage sag at 15A, and temp rise is noted as a limiting factor – not just capacity loss. Let's start with the official specifications

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

Here's a brief overview of the Panasonic NCR21700T: