Panasonic NCR18650B 3.6V 3400mAh High-Capacity Cylindrical Li-ion Battery Cell
Grade-A 18650 3.7V 3400mAh High-Capacity Cylindrical Lithium-ion Battery Cell (3.7V, 3400mAh) cylindrical battery with Ø 18.3 ± 0.2 mm × H 65.0 ± 0.3 mm dimensions, low IR, and UN38.3 documentation for Electric bicycles, power tools, electric scooters, medical equipment, custom battery pack modules.
B2B Engineering Review & Pricing
Direct manufacturer supply, custom BMS telemetry, and CAD fit validation for OEM/ODM projects.
Product Details
The Panasonic NCR18650B 3.6V 3400mAh High-Capacity Cylindrical Li-ion Battery Cell is an industry-benchmark cylindrical Lithium Nickel Cobalt Aluminum Oxide (NCA) cell delivering 3.6V nominal voltage (compatible with 3.7V systems) and a true rated capacity of 3,400mAh (12.24Wh total energy). Manufactured with an ultra-pure NCA chemistry matrix and high-integrity nickel-plated steel casing featuring an integrated pressure-relief vent (CID/PTC), this cell delivers up to 6.8A (2.0C) continuous discharge down to a 2.50V cutoff. Widely deployed in premium e-bikes, electric scooters, professional robotics, and modular medical battery packs, system integrators should verify cell holder pitch, spot welding nickel strip thickness (≥ 0.15mm pure nickel), and BMS low-voltage cutoff threshold (2.50V–2.75V) prior to pack assembly.
Product Overview
The Panasonic NCR18650B 3.6V 3400mAh High-Capacity Cylindrical Li-ion Battery Cell is a world-renowned Grade-A cylindrical cell engineered for high-energy-density and long-term cyclic reliability. Featuring a 3.6V nominal operating voltage (4.20V charge ceiling, 2.50V discharge floor) and 3400mAh rated capacity, this cell utilizes advanced NCA cathode chemistry and precision automated steel can construction. With exact physical dimensions of Ø 18.25 ± 0.2 mm × H 65.0 ± 0.3 mm and a calibrated unit weight of Approx. 46.5g ± 1.0g (Max. 48.5g), it provides one of the highest volumetric energy densities available in the 18650 format. Engineered for electric bicycles, power tools, electric scooters, medical equipment, tactical lighting, and custom high-reliability battery packs, cells undergo strict laser grading for voltage (ΔV ≤ 3mV) and AC impedance (ΔR ≤ 1.5mΩ) matching.
Product Specifications
| Feature / Attribute | Technical Specification |
|---|---|
| Battery Chemistry | Lithium Nickel Cobalt Aluminum Oxide (NCA 18650) |
| Nominal Voltage & Capacity | 3.6V (Compatible with 3.7V) / 3400mAh (12.24Wh) |
| Physical Dimensions & Weight | Ø 18.25 ± 0.2 mm × H 65.0 ± 0.3 mm / Approx. 46.5g (Max. 48.5g) |
| Continuous Discharge Rating | 2.0C (6.8A continuous discharge) |
| Peak Pulse Discharge | 3.0C (10.0A pulse ≤ 5s) |
| Target Applications | Electric bicycles, power tools, electric scooters, medical equipment, custom battery pack modules |
| Terminal Form Factor | Standard Flat Top (Optional Button Top / Pre-welded Pure Nickel Tabs) |
| Service Life / Endurance | ≥ 500–1,000 cycles (@ 80% DoD, 25°C, 0.5C/0.5C) |
Technical Specifications
| Parameter | Value | Test Conditions & Engineering Tolerances |
|---|---|---|
| Nominal Operating Voltage | 3.6V | Standard measurement @ 25°C, 0.2C rate |
| Upper Voltage / Cutoff | 4.20V ± 0.03V (CC/CV mode) | Standard CC/CV charge regulation threshold |
| Discharge Lower Cutoff | 2.50V ± 0.05V | Safety full-capacity lower cutoff threshold |
| Internal AC Resistance (1kHz) | ≤ 35 mΩ | 1kHz AC test @ 25°C fully charged state |
| Cell Consistency Screening | ΔV ≤ 3mV | ΔR ≤ 1.5mΩ | Pre-assembly automated barcode classification SOP |
| Standard Charge Current | 0.5C (1700mA) / Max 1.0C (3400mA) | CC/CV charge to 4.20V cutoff |
| Operating Temperature Range | Charge: 0~45°C | Discharge: -20~60°C | Storage: -20~50°C (50% SoC storage) |
Equipment Compatibility & Engineering Fit Check
Before deploying Panasonic NCR18650B 3.6V 3400mAh High-Capacity Cylindrical Li-ion Battery Cell, verify these verified electrical and mechanical boundary requirements:
Operational Boundary Conditions
✔ Recommended Fit & Use Cases:
- Electronic devices and OEM packs matched with 3.6V / 3.4Ah power curves.
- Commercial designs requiring high volumetric energy density and predictable discharge curves.
- Projects requiring batch consistency with automated barcode impedance sorting.
⚠ Operational Constraints & Limits:
- Do not discharge below minimum cutoff voltage or charge beyond 4.09V.
- Maintain operational surface temperature within -20°C to +60°C discharge (0°C to +45°C charge).
- Ensure connector polarity and pin assignment match system schematics prior to initial power-up.
First-Party Manufacturing SOP & Export Compliance
Technical Whitepapers & Engineering Guides
High-Performance Cylindrical Batteries: 16 Years of B2B Manufacturing
Technical breakdown of automated cell sorting, delta IR matching, laser welding busbars, and cycle aging protocols.
Industrial Cylindrical Batteries: QC, Aging and Test Standards
Key factory inspection criteria for cylindrical packs, thermal management, vibration testing, and BMS protection thresholds.
Cylindrical Battery Sourcing: Capacity and QC Verification Guide
How hardware engineers evaluate true C-rate capability, temperature rise curves, and Grade-A barcode traceability.
