GEB 18650 3.7V 3000mAh Cylindrical Lithium-ion Battery Cell (Grade-A Core)
Grade-A GEB 18650 3.7V 3000mAh Cylindrical Lithium-ion Battery Cell (Grade-A Core) (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 Lithium-ion Battery Cell (Grade-A Core) is a high-energy-density rechargeable power cell offering a 3.7V nominal operating voltage and 3,000mAh rated capacity (11.1Wh total energy). Engineered with premium Grade-A NCM chemistry within a standard 18×65mm cylindrical footprint (~46.5g net weight), this cell features tight sorting tolerances (ΔV ≤ 3mV, ΔR ≤ 1.5mΩ) and low internal resistance (≤25 mΩ). Capable of delivering up to 6.0A continuous discharge current, it is an optimal building block for multi-cell packs in electric bicycles, portable power stations, robotic appliances, and outdoor emergency searchlights.
Product Overview
The GEB 18650 3.7V 3000mAh Cylindrical Lithium-ion Battery Cell (Grade-A Core) is an industrial-grade high-capacity cylindrical cell manufactured to strict electrochemical tolerances. Featuring 3.7V nominal voltage and 3000mAh rated capacity (11.1Wh energy content), this cell incorporates an integrated current interruption vent (CID), positive temperature coefficient (PTC) switch, and deep-drawn steel canister. Measuring Ø 18.3 ± 0.2 mm × H 65.0 ± 0.3 mm with an exact unit weight of Approx. 46.5g ± 1.5g, it is engineered for e-bike traction packs, portable solar power stations, robotic lawn mowers, industrial handheld terminals, and high-lumen outdoor lighting. Flat-top cells are optimized for automated spot-welding busbars, while button-top formats support single-cell industrial equipment.
Product Specifications
| Feature / Attribute | Technical Specification |
|---|---|
| Battery Chemistry | Lithium Nickel Manganese Cobalt Oxide (NCM 18650 Cylindrical) |
| Nominal Voltage & Capacity | 3.7V / 3000mAh (11.1Wh total energy) |
| Physical Dimensions & Weight | Ø 18.3 ± 0.2 mm × H 65.0 ± 0.3 mm / Approx. 46.5g ± 1.5g |
| Continuous Discharge Rating | 1.5C–2.0C (4.5A–6.0A continuous discharge) |
| Peak Pulse Discharge | 3.0C (9.0A pulse ≤ 5s) |
| Target Applications | E-bike & e-scooter battery packs, portable power stations, robotic appliances, searchlights, industrial handheld PDAs |
| Terminal Form Factor | Flat Top (pack assembly) / 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 | 3.7V | Standard measurement @ 25°C, 0.2C rate |
| Upper Voltage / Cutoff | 4.20V ± 0.02V (CC/CV mode) | Regulation tolerance ±0.02V, cutoff @ 0.02C |
| Discharge Lower Cutoff | 2.75V ± 0.03V | BMS cut-off voltage recommendation |
| Internal AC Resistance (1kHz) | ≤ 25 mΩ | 1kHz AC test @ 25°C fully charged state |
| Cell Consistency Screening | ΔV ≤ 3mV | ΔR ≤ 1.5mΩ | Pre-assembly automated barcode classification SOP |
| 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 Lithium-ion Battery Cell (Grade-A Core), verify these verified electrical and mechanical boundary requirements:
Operational Boundary Conditions
✔ Recommended Fit & Use Cases:
- Electronic devices and OEM packs matched with 3.7V / 3000mAh 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 Assembly: Spot Welding, BMS Integration & Industrial Quality Control Guide
Industrial assembly guide for cylindrical battery packs (18650/21700): cell sorting tolerances, precision spot welding, BMS wiring, and QC testing standards.
