Panasonic Ncr21700t Datasheet Free -
Panasonic NCR21700T Datasheet: Unveiling the Features and Benefits of this High-Performance Lithium-Ion Battery
The Panasonic NCR21700T is a high-performance lithium-ion battery designed for a wide range of applications, from consumer electronics to industrial devices. As a leading manufacturer of lithium-ion batteries, Panasonic has engineered the NCR21700T to deliver exceptional performance, reliability, and safety. In this blog post, we'll dive into the datasheet of the Panasonic NCR21700T, exploring its key features, specifications, and benefits.
Overview of the Panasonic NCR21700T
The Panasonic NCR21700T is a 21mm x 70mm cylindrical lithium-ion battery with a nominal voltage of 3.6V and a capacity of 4000mAh. The battery is designed to provide a high level of energy density, making it an ideal choice for applications where space and weight are limited.
Key Features and Specifications
Here are the key features and specifications of the Panasonic NCR21700T:
- Capacity: 4000mAh (typical), 3800mAh (minimum)
- Nominal Voltage: 3.6V
- Maximum Discharge Current: 20A (continuous), 30A (pulse)
- Maximum Charge Current: 10A (continuous), 20A (pulse)
- Cycle Life: 300 cycles (80% capacity retention)
- Operating Temperature: -20°C to 60°C (charge/discharge)
- Storage Temperature: -20°C to 25°C (recommended)
Benefits of the Panasonic NCR21700T
The Panasonic NCR21700T offers several benefits that make it an attractive choice for various applications: panasonic ncr21700t datasheet
- High Energy Density: The battery provides a high level of energy density, making it ideal for applications where space and weight are limited.
- Long Cycle Life: The battery has a cycle life of 300 cycles, ensuring a long lifespan and minimizing the need for replacement.
- High Discharge Rate: The battery can handle high discharge rates, making it suitable for applications that require high power output.
- Wide Operating Temperature Range: The battery can operate over a wide temperature range, making it suitable for applications that require operation in extreme temperatures.
Applications of the Panasonic NCR21700T
The Panasonic NCR21700T is suitable for a wide range of applications, including:
- Electric Vehicles: The battery can be used in electric vehicles, providing a reliable and efficient source of power.
- Consumer Electronics: The battery can be used in consumer electronics, such as laptops, tablets, and smartphones.
- Industrial Devices: The battery can be used in industrial devices, such as power tools and medical devices.
- Renewable Energy Systems: The battery can be used in renewable energy systems, such as solar and wind power systems.
Conclusion
The Panasonic NCR21700T is a high-performance lithium-ion battery that offers exceptional performance, reliability, and safety. With its high energy density, long cycle life, and high discharge rate, the battery is suitable for a wide range of applications. Whether you're designing an electric vehicle, consumer electronics, or industrial devices, the Panasonic NCR21700T is an excellent choice. By understanding the features and benefits of this battery, you can design and develop innovative products that meet the demands of today's market.
The Panasonic NCR21700T is a high-performance lithium-ion cell widely used in electric vehicles, power tools, and high-drain electronics. It utilizes a Nickel-Cobalt-Aluminum (NCA) chemistry, optimized for high energy density and steady discharge rates. 🔋 Core Electrical Specifications
The following data reflects the standard operating parameters found in the official datasheet. Nominal Capacity: 4800 mAh (Minimum 4700 mAh) Nominal Voltage: 3.6V Charging Voltage: 4.2V Standard Charging Current: 1.55A
Max Continuous Discharge: 15A (With proper temperature monitoring) Discharge Cut-off: 2.5V Internal Resistance: ≤ 15 mΩ (AC 1kHz) 📏 Physical Dimensions & Weight Benefits of the Panasonic NCR21700T The Panasonic NCR21700T
This cell is slightly larger than the classic 18650, allowing for a significant jump in capacity. Diameter: 21.1 mm (Max) Length: 70.3 mm (Max) Weight: ~65.0 g Form Factor: 21700 Cylindrical 🌡️ Temperature & Operating Limits
Safety and longevity depend heavily on staying within these thermal windows. Charging: 10°C to 45°C Discharging: -20°C to 60°C Storage (1 year): -20°C to 20°C Energy Density: ~263 Wh/kg (Gravimetric) 🛠️ Key Performance Features
High Energy Density: Reaches ~775 Wh/l, making it ideal for compact battery packs.
NCA Chemistry: Offers better thermal stability and capacity retention than standard cobalt-only cells.
Flat Discharge Curve: Maintains a stable voltage for the majority of the discharge cycle. ⚠️ Important Safety Guidelines
Protection Circuit: This is a bare cell; it must be used with a Battery Management System (BMS).
Charging: Only use a dedicated Li-ion charger with CC/CV (Constant Current/Constant Voltage) protocol. 2. Performance Analysis
Handling: Never carry loose cells in a pocket; always use a plastic case to prevent short circuits. If you are designing a project with these, I can help you:
Calculate the total capacity and voltage for a specific series/parallel (S/P) configuration.
Compare the NCR21700T against the Samsung 40T or Molicel P42A. Identify a compatible BMS based on your total current draw.
What is the main application you are looking at for these cells? NCR21700 data sheet
Comparative context (21700 ecosystem)
- Compared with smaller 18650 cells: 21700 format increases energy per cell and can simplify pack design (fewer cells in series/parallel for a given capacity).
- Compared with power‑oriented 21700 variants: power‑optimized cells (e.g., with lower internal resistance, thicker tabbing, different electrode microstructure) will deliver higher continuous currents but at lower gravimetric energy.
- For designs needing both high energy and significant power, parallel arrays of NCR21700T or hybrid packs mixing energy and power cells can be considered—with careful BMS and thermal design.
Chemistry and cell construction (implications)
- Family: Panasonic “NCR” designation implies nickel‑cobalt‑aluminum (NCA) or nickel‑cobalt‑manganese‑rich layered oxide variants optimized for energy density; NCR cells historically prioritize capacity and energy per volume/weight.
- Electrode design: larger active material loading, thinner separators relative to power‑optimized cells, and higher electrode coating density produce higher gravimetric/volumetric energy but increase internal resistance rise at high currents and charge/discharge stress.
- Electrolyte and additives: formulated for cycle stability and SEI formation; thermal runaway thresholds depend on electrolyte composition and electrode decomposition characteristics.
- No internal protection: 21700 cells like the NCR21700T are generally unprotected single cells — they rely on external BMS/protection circuits in battery packs.
Electrical Specifications
| Parameter | Value |
|-----------|--------|
| Standard Charge Current | 1.5 A (0.3 C) |
| Max. Charge Current | 4 A (0.8 C) |
| Charge Cut-off Voltage | 4.20 V ±0.03 V |
| Standard Discharge Current | 2.5 A |
| Max. Continuous Discharge Current | 15 A (or up to 20 A pulsed, check latest specs) |
| Discharge Cut-off Voltage | 2.5 V |
| AC Impedance (1 kHz) | ≤ 30 mΩ |
Panasonic NCR21700T Lithium-Ion Battery Datasheet
Model: NCR21700T
Type: Rechargeable Li-ion (Nickel-Cobalt-Aluminum Oxide chemistry)
Nominal Voltage: 3.6 V
Typical Capacity: 4500 – 4800 mAh (depending on discharge rate)
Minimum Capacity: 4350 mAh
Energy: ~16.2 Wh
5. Comparison vs. Competing 21700 Cells
| Model | Capacity | Max Cont. | Charge Rate | Best For | |-------|----------|-----------|-------------|----------| | Panasonic NCR21700T | 4800 mAh | 9.6A | 3.2A | Low-drain energy storage | | Samsung 50G | 5000 mAh | 9.8A | 4.9A | Slightly better charging | | LG M50LT | 5000 mAh | 14.5A | 3.4A | Better pulse power | | Molicel P42A | 4200 mAh | 45A | 8.4A | High-power (tools, vaping) | | Samsung 40T | 4000 mAh | 35A | 6A | High-power / hybrid |
Takeaway: The NCR21700T competes in the low-drain energy segment, but Samsung 50G or LG M50LT are often better choices for similar capacity with slightly higher current.
Dimensions & Weight
| Parameter | Value |
|-----------|--------|
| Diameter | 21.0 mm ±0.2 mm |
| Height | 70.0 mm ±0.3 mm |
| Weight (approx.) | 68 g |
2. Strengths (What the datasheet does well)
- High Energy Density: ~4800 mAh in a 70g cell gives ≈245 Wh/kg. Excellent for size/weight-sensitive stationary or portable applications.
- Clear Safety Limits: The datasheet explicitly lists overcharge protection (4.35V), thermal cutoff (not integrated, but recommends external), and mechanical design (PTC, vent, CID). Good for engineers designing BMS.
- Cycle Life Claim: ≥500 cycles to 60% capacity at 0.5C charge/discharge (25°C). Typical for NCA chemistry. No false “1000 cycles” marketing.
- Low Self-Discharge: Claimed ≤1% per month – good for backup or long-term storage.
