GEB 18650 3.6V 2600mAh Cylindrical Lithium-ion (Li-ion) Battery Cell (18×65mm)
Grade-A GEB 18650 3.6V 2600mAh Cylindrical Lithium-ion (Li-ion) Battery Cell (18×65mm) (3.6V, 2600mAh) cylindrical battery with 18×65mm 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 3.6V 2600mAh Cylindrical Lithium-ion (Li-ion) Battery Cell (18×65mm) is an economical, high-reliability cylindrical power cell engineered for consumer electronics, tactical flashlights, and standardized rechargeable battery packs. Delivering a verified 3.6V nominal voltage and 2600mAh rated capacity (9.36Wh total energy), this cell supports continuous discharge rates up to 1.5C (3.9A) with 3.0C pulse capability (7.8A ≤ 5s) and low internal resistance (≤ 25–35 mΩ). Built with a precision nickel-plated steel canister, hermetic seal, and integrated safety vent (CID/PTC), it provides proven electrochemical stability and safety. Ensure verified cutoff calibration (4.20V charge / 2.75V discharge) and proper holder isolation during integration.
Product Overview
The GEB 18650 3.6V 2600mAh Cylindrical Lithium-ion Battery Cell is an industry-standard cylindrical cell engineered for high consistency and dependable multi-cycle life. Featuring a 3.6V nominal operating voltage and 2600mAh rated capacity (9.36Wh energy content), this cell uses proven NCM chemistry enclosed in a robust steel casing. With standardized physical dimensions of Ø 18.3 ± 0.2 mm × H 65.0 ± 0.3 mm and a calibrated unit weight of Approx. 45.0g ± 1.5g, it is engineered for portable LED lighting, cordless handheld tools, mobile backup power banks, and industrial instruments. Automated laser barcode sorting guarantees tight voltage and resistance tolerances for multi-cell pack assembly.
Product Specifications
| Feature / Attribute | Technical Specification |
|---|---|
| Battery Chemistry | Lithium Nickel Manganese Cobalt Oxide (NCM 18650 Cylindrical) |
| Nominal Voltage & Capacity | 3.6V / 2600mAh (9.36Wh) |
| Physical Dimensions & Weight | Ø 18.3 ± 0.2 mm × H 65.0 ± 0.3 mm / Approx. 45.0g ± 1.5g |
| Continuous Discharge Rating | 1.5C (3.9A continuous discharge) |
| Peak Pulse Discharge | 3.0C (7.8A peak pulse ≤ 5s) |
| Target Applications | LED flashlights, portable electronics, mobile power banks, industrial handheld equipment, custom 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 | 3.6V | 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) | ≤ 25–35 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 (1.3A) / Max Fast Charge 1.0C (2.6A) | 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 3.6V 2600mAh Cylindrical Lithium-ion (Li-ion) Battery Cell (18×65mm), verify these verified electrical and mechanical boundary requirements:
Operational Boundary Conditions
✔ Recommended Fit & Use Cases:
- Electronic devices and OEM packs matched with 3.6V / 2600mAh 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.
Unlocking Next-Generation Energy: How Polymer Batteries Enhance Energy Density
Explore how polymer batteries achieve breakthrough energy density through silicon-carbon anodes, high-voltage cathodes, and ultrathin current collectors.
