GEB 18650 3.7V 2000mAh Cylindrical Lithium-ion (Li-ion) Battery Cell (18×65mm)
Grade-A GEB 18650 3.7V 2000mAh Cylindrical Lithium-ion (Li-ion) Battery Cell (18×65mm) (3.7V, 2000mAh) 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 3.7V 2000mAh Cylindrical Lithium-ion (Li-ion) Battery Cell (18×65mm) is a cost-effective, high-reliability cylindrical power cell engineered for consumer electronics and light commercial devices. Delivering a 3.7V working potential and 2,000mAh rated capacity (7.40Wh total energy), it features a standard 18×65mm physical profile with a net weight of ~43.5g. Manufactured with automated cell sorting (ΔV ≤ 3mV, ΔR ≤ 1.5mΩ) and integrated CID/PTC protection mechanisms, this cell provides >800 recharge cycles for personal care appliances, solar garden lighting systems, portable audio equipment, and wireless electronic toys.
Product Overview
The GEB 18650 3.7V 2000mAh Cylindrical Lithium-ion (Li-ion) Battery Cell (18×65mm) is an economical, mature-chemistry cylindrical power cell designed for high-volume consumer goods and entry-level industrial electronics. Offering 3.7V nominal operating voltage and 2000mAh rated capacity (7.40Wh energy content), this cell features excellent thermal dissipation, proven cycle endurance (≥800 cycles @ 80% DoD), and reliable discharge plateau stability. Measuring Ø 18.3 ± 0.2 mm × H 65.0 ± 0.3 mm with an exact unit weight of Approx. 43.5g ± 1.5g, it is engineered for solar garden floodlights, rechargeable desktop fans, personal grooming shavers, portable wireless audio speakers, and educational robotics kits.
Product Specifications
| Feature / Attribute | Technical Specification |
|---|---|
| Battery Chemistry | Lithium Nickel Manganese Cobalt Oxide (NCM 18650 Cylindrical) |
| Nominal Voltage & Capacity | 3.7V / 2000mAh (7.40Wh total energy) |
| Physical Dimensions & Weight | Ø 18.3 ± 0.2 mm × H 65.0 ± 0.3 mm / Approx. 43.5g ± 1.5g |
| Continuous Discharge Rating | 1.5C–2.0C (3.0A–4.0A continuous discharge) |
| Peak Pulse Discharge | 3.0C (6.0A pulse ≤ 5s) |
| Target Applications | Solar lawn lighting, portable desktop fans, grooming appliances, wireless Bluetooth speakers, educational RC toys |
| Terminal Form Factor | Flat Top / Button Top / Pre-welded Pure Nickel Solder Tabs |
| Service Life / Endurance | ≥ 800 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 | Protective lower threshold limit |
| Internal AC Resistance (1kHz) | ≤ 30 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 2000mAh 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 3.7V / 2000mAh 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.
12S to 18S High-Capacity LiPo Packs for Agricultural Spraying Drones: Corrosion Resistance, Fast Charging & Cycle Life
Comprehensive engineering guide to 12S, 14S, and 18S high-capacity LiPo battery packs for agricultural spraying UAVs. Discover IP67 pesticide corrosion-resistant housing, 15-minute field fast charging protocols, and cycle-life ROI models.
