GEB 18650 11.1V 3000mAh Cylindrical Li-ion Battery Pack (3S2P Configuration)
Industrial 11.1V 3000mAh (33.3Wh) 18650 3S2P cylindrical lithium-ion battery pack (Approx. 280g) assembled from 6 Grade-A 1500mAh cells with integrated 10A hardware BMS, 12.6V charge cutoff, 9.0V discharge cutoff, and wire harness for electronic instruments and medical devices.
B2B Engineering Review & Pricing
Direct manufacturer supply, custom BMS telemetry, and CAD fit validation for OEM/ODM projects.
Product Details
The GEB 18650 11.1V 3000mAh Cylindrical Li-ion Battery Pack (3S2P Configuration) is an industrial rechargeable Lithium-ion power system delivering an authentic 11.1V nominal working voltage, 3,000mAh rated capacity, and 33.3Wh total stored energy. Built from 6 Grade-A 18650 cylindrical cells (1,500mAh individual cell rating) arranged in a robust 3-series 2-parallel (3S2P) topology, this module integrates an onboard 10A continuous hardware Battery Management System (BMS). The pack features a 12.60V charge cutoff, a safe 9.00V discharge lower threshold, pure nickel spot-welded interconnects, and blue heat-shrink PVC packaging weighing approximately 280g, ensuring fail-safe power for portable medical equipment, surveying tools, and wireless inspection instruments.
Product Overview
The GEB 18650 11.1V 3000mAh Cylindrical Li-ion Battery Pack (3S2P Configuration) is an engineered multi-cell power pack assembled from 6 Grade-A 18650 cylindrical cells grouped with precision cell spacing brackets and ultrasonic pure nickel strip spot welding. Delivering 11.1V nominal potential / 3000mAh capacity (33.3Wh), this unit integrates a dedicated 10A hardware protection circuit module (PCM/BMS) providing multi-tier safeguards against cell overcharge (4.25V/cell), over-discharge (3.00V/cell), short-circuit, and over-current. Measuring 56 × 38 × 68 mm (±1.5mm) and weighing Approx. 280g ± 10g, it is targeted for portable ultrasonic flaw detectors, medical telemetry monitors, handheld barcode terminals, POS terminals, and emergency backup devices. Custom output leads (UL1007 18AWG/20AWG with JST, Molex, DC barrel jack, or Anderson connectors) are available upon request.
Product Specifications
| Feature / Attribute | Technical Specification |
|---|---|
| Battery Core Chemistry | Lithium Nickel Manganese Cobalt / Cobalt (NCM Li-ion 18650) |
| Configuration & Topology | 3S2P (6 × 18650 1500mAh Cells) |
| Nominal Voltage & Energy | 11.1V (3S Li-ion) / 3000mAh (33.3Wh total energy) |
| Physical Dimensions (L×W×H) | Approx. 56 × 38 × 68 mm (±1.5mm) |
| Pack Net Weight | Approx. 280g ± 10g |
| Continuous Discharge Current | 10.0A continuous (rated hardware BMS limit) |
| Peak Pulse Discharge | 20.0A peak burst (≤ 5s overcurrent protection threshold) |
| Integrated Protection Circuit | Dedicated 10A Hardware BMS (OVP, UVP, OCP, SCP) |
| Target Applications | Portable medical monitors, industrial test meters, robotic sensors, portable lighting |
| Baseline Cycle Life | ≥ 500–800 cycles (@ 80% DoD, 25°C, 0.5C/0.5C) |
Technical Specifications
| Parameter | Value | Test Conditions & Engineering Tolerances |
|---|---|---|
| Nominal Working Voltage | 11.1V (3.7V per cell × 3) | Standard measurement @ 25°C, 0.2C rate |
| Upper Charge Voltage Cutoff | 12.60V ± 0.05V (4.20V/cell) | CC/CV charge mode, 0.02C termination current |
| Discharge Lower Cutoff Voltage | 9.00V ± 0.15V (3.00V/cell) | Integrated hardware BMS automatic low-voltage cutoff |
| Standard Charge Current | 0.2C – 0.5C (600mA to 1,500mA) | Maximum continuous charge: 1.0C (3,000mA) |
| Continuous Discharge Limit | 10.0A continuous | Thermal equilibrium sustained load |
| Internal AC Resistance (1kHz) | ≤ 90 mΩ | 1kHz AC test @ 25°C fully charged state |
| Operating Temperature Range | Charge: 0°C to +45°C | Discharge: -20°C to +60°C | Ambient environmental operating envelope |
| Storage Temperature Range | -10°C to +35°C (11.4V–11.6V storage SoC) | Recommended dry climate-controlled depot |
| Safety Standards Compliance | UN38.3, CE, RoHS, MSDS, IEC 62133 Tested | Certified for Class 9 DG air & ocean shipping |
Equipment Compatibility & Engineering Fit Check
Before deploying GEB 18650 11.1V 3000mAh Cylindrical Li-ion Battery Pack (3S2P Configuration), verify these verified electrical and mechanical boundary requirements:
Operational Boundary Conditions
✔ Recommended Fit & Use Cases:
- Electronic devices and OEM packs matched with 11.1V / 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 12.6V.
- 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.
LiPo vs. LiFePO4 Batteries: Chemistry, Specs, Safety and OEM Selection Guide
Engineering comparison of Lithium Polymer (LiPo) vs Lithium Iron Phosphate (LiFePO4): energy density (Wh/kg), thermal runaway, cycle life, and OEM application matching.
