The Panasonic NCR21700T is a high-capacity 21700-format lithium-ion cell commonly used in energy storage, e-bikes, power tools, and high-capacity battery packs. Below is a concise, shareable post summarizing its datasheet specifications, performance characteristics, and usage considerations.
Electric Vehicles (EVs): High energy density allows for longer range in automotive packs.
Datasheet Analysis
| Parameter | Value | Reviewers' Take | |-----------|-------|------------------| | Nominal Capacity | 4800 mAh (0.2C discharge) | Excellent for 21700 format. Slightly above the common 4500-5000 mAh range. | | Nominal Voltage | 3.6V (3.7V typical) | Standard Li-ion. | | Max Discharge Current | 2C (9.6A continuous) / 4C (19.2A pulse) | Major limitation. This is a low-drain cell. | | Standard Charge | 1.4A (0.3C) | Very slow by modern 21700 standards. | | Fast Charge | 3.2A (0.67C) | Still slow. Compare to Samsung 50G or LG M50LT (1C+). | | Max Charge Voltage | 4.20V ±0.03V | Standard, not high-voltage (4.35V). | | Cut-off Voltage | 2.5V | Standard. | | Internal Resistance | ≤ 40 mΩ (AC IR) | Good, but not exceptional (high-power cells are ~10 mΩ). | | Weight | ~69g | Very light for capacity – good energy/weight ratio. | | Operating Temp | Charge: 0~45°C / Discharge: -20~60°C | Standard range. |
But you shouldn’t buy a cell based on marketing hype. You need to read the datasheet. Let’s strip down the official specs and see what this battery is actually capable of.
Q: What are the safety features of the Panasonic NCR21700T? A: The datasheet highlights several safety features, including overcharge protection, over-discharge protection, and a protective circuit that prevents excessive current flow.
Because they were designed for EVs, they are optimized for high-volume manufacturing and long-cycle life rather than the extreme "raw" discharge power found in high-performance power tool cells. Performance Insights for DIYers If you are using these for flashlights or DIY e-bike packs: Capacity King:
In this article, we will extract, explain, and expand upon every critical specification from the official Panasonic NCR21700T datasheet. We will also discuss real-world performance, safety precautions, and common applications.
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The Panasonic NCR21700T is a high-capacity 21700-format lithium-ion cell commonly used in energy storage, e-bikes, power tools, and high-capacity battery packs. Below is a concise, shareable post summarizing its datasheet specifications, performance characteristics, and usage considerations.
Electric Vehicles (EVs): High energy density allows for longer range in automotive packs.
Datasheet Analysis
| Parameter | Value | Reviewers' Take | |-----------|-------|------------------| | Nominal Capacity | 4800 mAh (0.2C discharge) | Excellent for 21700 format. Slightly above the common 4500-5000 mAh range. | | Nominal Voltage | 3.6V (3.7V typical) | Standard Li-ion. | | Max Discharge Current | 2C (9.6A continuous) / 4C (19.2A pulse) | Major limitation. This is a low-drain cell. | | Standard Charge | 1.4A (0.3C) | Very slow by modern 21700 standards. | | Fast Charge | 3.2A (0.67C) | Still slow. Compare to Samsung 50G or LG M50LT (1C+). | | Max Charge Voltage | 4.20V ±0.03V | Standard, not high-voltage (4.35V). | | Cut-off Voltage | 2.5V | Standard. | | Internal Resistance | ≤ 40 mΩ (AC IR) | Good, but not exceptional (high-power cells are ~10 mΩ). | | Weight | ~69g | Very light for capacity – good energy/weight ratio. | | Operating Temp | Charge: 0~45°C / Discharge: -20~60°C | Standard range. |
But you shouldn’t buy a cell based on marketing hype. You need to read the datasheet. Let’s strip down the official specs and see what this battery is actually capable of. panasonic ncr21700t datasheet
Q: What are the safety features of the Panasonic NCR21700T? A: The datasheet highlights several safety features, including overcharge protection, over-discharge protection, and a protective circuit that prevents excessive current flow.
Because they were designed for EVs, they are optimized for high-volume manufacturing and long-cycle life rather than the extreme "raw" discharge power found in high-performance power tool cells. Performance Insights for DIYers If you are using these for flashlights or DIY e-bike packs: Capacity King: Panasonic NCR21700T — Datasheet Overview and Key Points
In this article, we will extract, explain, and expand upon every critical specification from the official Panasonic NCR21700T datasheet. We will also discuss real-world performance, safety precautions, and common applications.