GEB 18650 7.4V 6800mAh Cylindrical Lithium-ion Battery Pack (2S3P Configuration)
Rugged Grade-A GEB 18650 7.4V 6800mAh (50.32Wh) 2S3P cylindrical lithium-ion battery pack (37×56×68mm, 280g) with integrated hardware BMS, 8.4V charge cutoff, 10.2A continuous discharge, and wire leads for field instrumentation and robotics.
B2B Engineering Review & Pricing
Direct manufacturer supply, custom BMS telemetry, and CAD fit validation for OEM/ODM projects.
Product Details
The GEB 18650 7.4V 6800mAh Cylindrical Lithium-ion Battery Pack (2S3P Configuration) is an industrial rechargeable power assembly engineered by combining six sorted Grade-A 18650 cells in a 2 Series 3 Parallel (2S3P) topology, delivering a verified 7.4V nominal working voltage (8.40V charge cutoff) and 6,800mAh rated capacity (50.32Wh total energy). Precision spot-welded with pure nickel busbars in a compact 2×3 brick architecture measuring 37.0×56.0×68.0mm and weighing approximately 280g, it provides a stable 1.5C continuous discharge rating (10.2A continuous) and pulse output up to 2.5C–3.0C (17.0A–20.4A ≤ 5s). Equipped with an internal multi-stage BMS safeguarding against over-charge, over-discharge (5.5V cutoff), and cell-to-cell thermal imbalance.
Product Overview
The GEB 18650 7.4V 6800mAh Cylindrical Lithium-ion Battery Pack (2S3P Configuration) is engineered for high-endurance applications requiring extended operational run-time, including geological exploration equipment, mobile wireless base stations, autonomous delivery rovers, industrial thermal cameras, and portable medical ventilators. Assembled with 6 Grade-A 18650 cells (three parallel groups in two series), the pack combines high energy capacity with reliable heat dissipation. Encased in flame-retardant blue PVC shrink film with barley paper terminal insulators and silicone lead wires, it provides physical dimensions of 37.0 ± 1.0 mm × 56.0 ± 1.0 mm × 68.0 ± 1.0 mm and total unit weight of Approx. 280.0g ± 8.0g.
Product Specifications
| Feature / Attribute | Technical Specification |
|---|---|
| Battery Pack Configuration | 2S3P (2 Series, 3 Parallel – 6× 18650 ~2267mAh Cells) |
| Nominal Voltage & Capacity | 7.4V / 6800mAh (50.32Wh total energy) |
| Physical Dimensions & Weight | 37.0 ± 1.0 mm × 56.0 ± 1.0 mm × 68.0 ± 1.0 mm / Approx. 280.0g ± 8.0g |
| Continuous Discharge Rating | 1.5C continuous (10.2A continuous discharge) |
| Peak Pulse Discharge | 2.5C–3.0C pulse (17.0A–20.4A pulse ≤ 5 seconds) |
| Target Applications | Geophysical instruments, autonomous robots, medical mobile monitors, portable communication relays |
| Connectors & Wiring | UL1007 / UL3239 AWG 18 silicone wire with XT30, SM-2P, DC 5.5×2.1mm, or JST connector |
| Baseline Cycle Life | ≥ 500–800 cycles (@ 80% DoD, 25°C, 0.5C/0.5C) |
Technical Specifications
| Parameter | Value | Test Conditions & Engineering Tolerances |
|---|---|---|
| Nominal Operating Voltage | 7.4V | Standard 0.2C discharge test @ 25°C |
| Full Charge Cutoff Voltage | 8.40V ± 0.04V (4.20V per series) | 2S CC/CV regulation mode, 0.02C termination current |
| Discharge Cutoff Voltage | 5.50V–6.00V ± 0.05V (2.75V–3.00V per series) | Integrated BMS hardware undervoltage protection |
| Standard Charging Current | 0.2C–0.5C (1.36A to 3.40A) | Maximum recommended charge current: 1.0C (6.80A) |
| Internal AC Resistance (1kHz) | ≤ 35 mΩ | Combined pack impedance including BMS and nickel busbars @ 25°C |
| Cell Consistency Screening | ΔV ≤ 2mV | ΔR ≤ 0.8mΩ | 6-cell electrochemical matrix classification prior to welding |
| Operating Temperature Range | Charge: 0°C to 45°C | Discharge: -20°C to 60°C | Storage: 15°C to 25°C (7.6V–7.8V storage voltage) |
Integration & Operational Boundary Conditions
Charging Profile Requirements: Must be charged with a regulated 2S 8.40V lithium-ion charger. Over-charging protection trips at 8.50V (4.25V/cell); under-voltage protection trips at 5.50V (2.75V/cell) to protect against irreversible cell polarization.
Form Factor Variations: Standard production utilizes a 2×3 block layout (37×56×68mm). A 1×6 flat layout (19×112×68mm) is optionally available for slim rack or casing integration.
B2B Compliance: Full UN38.3 test report package (including T1–T8 testing), MSDS, and 1.2m drop test certification provided for global freight clearance.
Equipment Compatibility & Engineering Fit Check
Before deploying GEB 18650 7.4V 6800mAh Cylindrical Lithium-ion Battery Pack (2S3P Configuration), verify these verified electrical and mechanical boundary requirements:
Operational Boundary Conditions
✔ Recommended Fit & Use Cases:
- Electronic devices and OEM packs matched with 7.4V / 6.8Ah 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 8.4V.
- 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.
