GEB 18650 3.7V 6600mAh Cylindrical Lithium-ion Battery Pack (1S3P Configuration)
Industrial GEB 18650 3.7V 6600mAh (24.42Wh) 1S3P lithium-ion battery pack (19×56×67mm, 138g) assembled from three parallel Grade-A 2200mAh cells with integrated PCM protection and wire leads for medical, lighting, and robotic equipment.
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 6600mAh Cylindrical Lithium-ion Battery Pack (1S3P Configuration) is an industrial rechargeable power assembly engineered by paralleling three Grade-A 18650 3.7V 2200mAh cells (1 Series 3 Parallel architecture) to deliver a true 3.7V nominal output and high 6,600mAh storage capacity (24.42Wh energy). Because single 18650 cylindrical cells cannot physically exceed 3500mAh due to volumetric electrochemical limits, this 6600mAh pack utilizes precision spot-welded pure nickel busbars connecting three sorted cells side-by-side, achieving a compact form factor of 19.0×56.0×67.0mm and a total pack weight of approximately 138g. Features an integrated hardware PCM/BMS protecting against over-charge, over-discharge, and short-circuit conditions.
Product Overview
The GEB 18650 3.7V 6600mAh Cylindrical Lithium-ion Battery Pack (1S3P Configuration) provides dependable continuous run-time for portable medical infusion pumps, emergency lighting systems, handheld barcode terminals, pipeline inspection robots, and outdoor IoT base stations. Delivering 3.7V nominal working voltage and 6600mAh rated capacity, the pack combines low combined internal AC impedance (≤ 25 mΩ) with enhanced thermal heat dispersion across the three parallel cells. Encased in high-dielectric blue PVC heat-shrink with insulating barley paper gaskets and silicone lead wires, it provides dimensions of 19.0 ± 0.5 mm × 56.0 ± 1.0 mm × 67.0 ± 1.0 mm and weighs Approx. 138g ± 5g.
Product Specifications
| Feature / Attribute | Technical Specification |
|---|---|
| Battery Pack Configuration | 1S3P (1 Series, 3 Parallel – 3× 18650 2200mAh Cells) |
| Nominal Voltage & Capacity | 3.7V / 6600mAh (24.42Wh total pack energy) |
| Pack Dimensions & Weight | 19.0 ± 0.5 mm × 56.0 ± 1.0 mm × 67.0 ± 1.0 mm / Approx. 138g ± 5g |
| Continuous Discharge Rating | 1.0C–1.5C (6.6A–9.9A continuous discharge) |
| Peak Pulse Discharge | 2.0C–2.5C (13.2A–16.5A pulse ≤ 5 seconds) |
| Target Applications | Portable medical devices, industrial sensors, pipeline inspection rovers, emergency backup luminaires |
| Standard Wiring & Connector | UL1007 / UL3239 AWG 20–22 silicone leads with JST-XH, SM-2P, or Molex 5264 plug |
| Cycle Endurance | ≥ 500–800 cycles (@ 80% DoD, 25°C, 0.5C/0.5C) |
Technical Specifications
| Parameter | Value | Test Conditions & Engineering Tolerances |
|---|---|---|
| Nominal Operating Voltage | 3.7V | Standard 0.2C discharge rate @ 25°C |
| Charge Voltage Cutoff | 4.20V ± 0.03V | CC/CV standard lithium-ion mode (1S regulation) |
| Discharge Voltage Cutoff | 2.75V–3.00V ± 0.05V | BMS automatic low-voltage protection cutoff |
| Standard Charging Current | 0.2C–0.5C (1.32A to 3.30A) | Maximum recommended charging current: 1.0C (6.60A) |
| Internal AC Resistance (1kHz) | ≤ 25 mΩ | Combined pack impedance including PCM and nickel tabs @ 25°C |
| Cell Consistency Screening | ΔV ≤ 2mV | ΔR ≤ 1.0mΩ | Strict electrochemical sorting prior to parallel pack welding |
| Operating Temperature Range | Charge: 0°C to 45°C | Discharge: -20°C to 60°C | Storage: 15°C to 25°C (45%–55% state of charge) |
Integration & System Design Guidelines
Parallel Balancing & Safety: The 1S3P configuration employs three strictly pre-matched 18650 cells. Pure nickel strips (≥ 0.15mm thickness) ensure low Joule heating during sustained 6A–9A loads. The integrated PCM board isolates the pack during overcurrent (> 12A) or short-circuit events with automated recovery.
Housing & Mechanical Integration: The side-by-side rectangular geometry (19×56×67mm) can also be customized into a triangular prism (approx. 37×40×67mm) upon OEM request to fit cylindrical or specialized tool cavities.
OEM Testing & B2B Logistics: Supplied with UN38.3 vibration/shock/altitude test certifications, drop test reports, and MSDS for international air and ocean cargo shipment.
Equipment Compatibility & Engineering Fit Check
Before deploying GEB 18650 3.7V 6600mAh Cylindrical Lithium-ion Battery Pack (1S3P Configuration), verify these verified electrical and mechanical boundary requirements:
Operational Boundary Conditions
✔ Recommended Fit & Use Cases:
- Electronic devices and OEM packs matched with 3.7V / 6600mAh 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.
Ni-MH Power Batteries: Technical Features, Charging and Industrial Uses
Engineering guide to Ni-MH power batteries: 1.2V chemistry, -ΔV charge termination, low self-discharge technology, and harsh industrial applications.
