GEB 18650 3.7V 3000mAh Cylindrical Li-ion Battery Cell (Standard Energy Density)
Grade-A GEB 18650 3.7V 3000mAh Cylindrical Li-ion Battery Cell (Standard Energy Density) (3.7V, 3000mAh) 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 GEB 18650 3.7V 3000mAh Cylindrical Li-ion Battery Cell (Standard Energy Density) is an industrial-grade energy-storage cylindrical cell manufactured for portable electronics, emergency lighting, and medium-rate battery modules. Featuring a verified 3.7V nominal working voltage and 3000mAh rated capacity (11.1Wh total energy), this cell is optimized for extended runtime, low self-discharge (< 2% per month), and consistent cycle endurance. With a continuous discharge rating of 1.0C–1.5C (3.0A–4.5A) and internal resistance of ≤ 28–35 mΩ, it balances energy density with thermal safety. Mechanical CID pressure vents and precision steel canning ensure dependable performance. Verify battery holder dimensions and BMS charge voltage before assembly.
Product Overview
The GEB 18650 3.7V 3000mAh Cylindrical Lithium-ion Battery Cell provides dependable high-density energy storage for applications where long operational endurance takes precedence over extreme pulse currents. Featuring a 3.7V nominal operating voltage and 3000mAh rated capacity (11.1Wh energy content), this cell incorporates high-stability NCM cathode materials, high-integrity steel canning, and an automated internal safety vent mechanism. With physical dimensions of Ø 18.3 ± 0.2 mm × H 65.0 ± 0.3 mm and a calibrated unit weight of Approx. 46.5g ± 1.5g, it is engineered for portable medical instruments, outdoor LED lanterns, security surveillance nodes, and residential energy storage modules.
Product Specifications
| Feature / Attribute | Technical Specification |
|---|---|
| Battery Chemistry | Lithium Nickel Manganese Cobalt Oxide (NCM 18650 Cylindrical) |
| Nominal Voltage & Capacity | 3.7V / 3000mAh (11.1Wh) |
| Physical Dimensions & Weight | Ø 18.3 ± 0.2 mm × H 65.0 ± 0.3 mm / Approx. 46.5g ± 1.5g |
| Continuous Discharge Rating | 1.0C–1.5C (3.0A–4.5A continuous discharge) |
| Peak Pulse Discharge | 2.5C (7.5A peak pulse ≤ 5s) |
| Target Applications | Portable medical devices, solar LED lanterns, wireless security sensors, custom battery packs |
| Terminal Form Factor | Flat Top / Button Top / Pre-welded Solder 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 | 3.7V | Standard measurement @ 25°C, 0.2C rate |
| Upper Voltage / Cutoff | 4.20V ± 0.02V (CC/CV mode) | Standard regulation tolerance ±0.02V |
| Discharge Lower Cutoff | 2.75V ± 0.03V | Safety lower discharge voltage limit |
| Internal AC Resistance (1kHz) | ≤ 28–35 mΩ | 1kHz AC test @ 25°C fully charged state |
| Cell Consistency Screening | ΔV ≤ 3mV | ΔR ≤ 1.0mΩ | Pre-assembly automated barcode classification SOP |
| Standard Charge Current | 0.5C (1.5A) / Max Fast Charge 1.0C (3.0A) | CC/CV charging to 4.20V cutoff |
| Operating Temperature Range | Charge: 0~45°C | Discharge: -20~60°C | Ambient environmental test qualification |
Equipment Compatibility & Engineering Fit Check
Before deploying GEB 18650 3.7V 3000mAh Cylindrical Li-ion Battery Cell (Standard Energy Density), verify these verified electrical and mechanical boundary requirements:
Operational Boundary Conditions
✔ Recommended Fit & Use Cases:
- Electronic devices and OEM packs matched with 3.7V / 3Ah 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 4.2V.
- 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.
