GEB 18650 3.6V 3500mAh Cylindrical Li-ion Battery Cell (LG INR18650-MJ1 Grade-A)

Grade-A GEB 18650 3.6V 3500mAh Cylindrical Li-ion Battery Cell (LG INR18650-MJ1 Grade-A) (3.6V, 3500mAh) cylindrical battery with Ø 18.3 ± 0.2 mm × H 65.0 ± 0.3 mm 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.

✔ Response target: Target response within 12 business hours during business hours; timing varies by inquiry complexity and working hours.
✔ Typical Lead Time: 7–10 business days for prototypes; 15–20 business days for mass production after final specification approval. Final timing is confirmed after tooling, testing, and order review.
✔ Shipping documentation: Applicable UN38.3 test documentation, MSDS/SDS, CE and Class 9 dangerous-goods requirements are confirmed per selected configuration and shipment.

Product Details

Direct Answer / Engineering Summary

The GEB 18650 3.6V 3500mAh Cylindrical Li-ion Battery Cell (LG INR18650-MJ1 Grade-A) is an authentic Tier-1 Grade-A high-capacity, high-drain cylindrical cell providing an impressive 3500mAh rated capacity (minimum 3400mAh, 12.7Wh energy) at 3.63V nominal voltage. Sourced directly with original manufacturer barcode traceability, the LG INR18650-MJ1 delivers up to 10A continuous discharge current within a standard 18×65mm format weighing just Approx. 46.5g (Max 49.0g). Engineered for demanding duty cycles requiring maximum gravimetric energy density (~260Wh/kg) and steady high-rate output, it is the premier cell for premium electric bicycles, high-capacity portable solar generators, commercial UAV ground stations, and high-intensity searchlights.

Engineering Overview

Product Overview

The GEB 18650 3.6V 3500mAh Cylindrical Li-ion Battery Cell (LG INR18650-MJ1 Grade-A) is a benchmark high-energy 18650 cell manufactured by LG Chem / LG Energy Solution, globally recognized for its exceptional volumetric energy density and robust current-carrying capacity. Featuring a 3.63V nominal operating potential and 3500mAh rated capacity (minimum 3400mAh, 12.7Wh), this cell is rated for an exceptional 10A continuous discharge rating without excessive thermal rise. With physical dimensions of Ø 18.4 ± 0.2 mm × H 65.0 ± 0.2 mm and a verified unit weight of Approx. 46.5g (Max 49.0g), it is engineered for long-range premium e-bikes, commercial drone ground telemetry hubs, portable emergency solar power generators, high-drain medical ventilators, and professional search & rescue torches.

Quick Reference

Product Specifications

Feature / Attribute Technical Specification
Battery Chemistry High-Density Lithium Nickel Manganese Cobalt Oxide (NCM LG INR18650-MJ1 Grade-A)
Nominal Voltage & Capacity 3.63V / 3500mAh (Min. 3400mAh, 12.7Wh total energy)
Physical Dimensions & Weight Ø 18.4 ± 0.2 mm × H 65.0 ± 0.2 mm / Approx. 46.5g ± 1.5g (Max 49.0g)
Continuous Discharge Rating 10.0A Maximum Continuous Discharge Current (~2.85C)
Peak Pulse Discharge 15.0A pulse (≤ 3 seconds)
Target Applications Premium long-range e-bikes & e-scooters, commercial UAV ground stations, high-capacity solar power stations, medical ventilators, professional search & diving lights
Terminal Form Factor Flat Top (original manufacturer industrial terminal) / Custom Pure Nickel Tabs available
Service Life / Endurance ≥ 500 cycles (@ 80% DoD, 25°C, 0.5C charge / 1.0C discharge)
Engineering Data

Technical Specifications

Parameter Value Test Conditions & Engineering Tolerances
Nominal Operating Voltage 3.63V (3.60V–3.63V) Standard measurement @ 25°C, 0.2C rate
Upper Voltage / Cutoff 4.20V ± 0.05V (CC/CV mode) Standard charge 1.7A (0.5C), cutoff 50mA
Discharge Lower Cutoff 2.50V ± 0.05V Official LG Chem datasheet lower discharge cutoff
Internal AC Resistance (1kHz) ≤ 38 mΩ (Typical 28–35 mΩ) 1kHz AC test @ 25°C fully charged state
Cell Consistency Screening ΔV ≤ 2mV | ΔR ≤ 1.0mΩ Original factory QR code scanning & classification
Operating Temperature Range Charge: 0~45°C | Discharge: -20~60°C Ambient environmental test qualification
Engineering Validation

Equipment Compatibility & Engineering Fit Check

Before deploying GEB 18650 3.6V 3500mAh Cylindrical Li-ion Battery Cell (LG INR18650-MJ1 Grade-A), verify these verified electrical and mechanical boundary requirements:

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Voltage & Charge Cutoff: Nominal 3.6V (charging CC/CV cutoff at 4.09V); confirm charger algorithm strictly matches this chemistry.
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Capacity & Energy Budget: Rated at 3.5Ah; verify system run-time calculations under planned discharge currents.
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Physical Envelope: Specified at Ø 18.3 ± 0.2 mm × H 65.0 ± 0.3 mm; allow 5–10mm buffer in battery tray for expansion and lead harness.
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Cycle Reliability: Verified for ≥ 500–1,000 cycles (@ 80% DoD, 25°C, 0.5C/0.5C) under controlled DOD and thermal management.
💡 Custom Engineering Fit: Contact our Shenzhen engineering team to verify CAD models, custom wire leads, or BMS CANbus telemetry for this product.
Operational Suitability

Operational Boundary Conditions

✔ Recommended Fit & Use Cases:

  • Electronic devices and OEM packs matched with 3.6V / 3.5Ah 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 4.09V.
  • 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 Standards

First-Party Manufacturing SOP & Export Compliance

🏭 Automated Grading & Matching Cells classified via automated OCV/ACIR sorting (ΔV ≤ 2–3mV, ΔR ≤ 1.2mΩ) for tight pack balance.
🔬 Joint Integrity & Testing Laser or ultrasonic busbar welding with destructive pull test validation ≥ 5.0–8.0 kgf per terminal.
📦 Full Cycle Aging Verification 100% full charge-discharge cycle screening and thermal imaging prior to warehouse dispatch.
🌐 Export & Regulatory Clearance Supplied with certified UN38.3 test summaries, MSDS, 1.2m drop reports, and Class 9 DG shipping documentation.
Turnaround: 7–10 days prototypes; 15–20 days mass production per custom tooling requirements. View Verified Manufacturing Equipment & Testing Facility →

⚙ Engineering FAQ & B2B Procurement Specifications

What is the turnaround time for custom battery pack prototypes and mass production for GEB 18650 3.6V 3500mAh Cylindrical Li-ion Battery Cell (LG INR18650-MJ1 Grade-A)?
Custom prototype development typically requires 7 to 10 business days after CAD drawing approval and technical specification freeze. Commercial mass production turnaround is typically 15 to 20 business days. Standard OEM minimum order quantities (MOQ) start at 50 to 100 units depending on cell chemistry, custom mold tooling, and casing complexity.
Does GEB provide UN38.3 test summaries, MSDS, and Class 9 dangerous goods export compliance?
Yes. General Electronics Technology (GEB) provides complete first-party compliance verification for all industrial battery packs, including UN38.3 test reports, 1.2m drop test appraisal certificates, MSDS/SDS sheets, and certified dangerous goods packaging compliant with IATA air transport and IMDG maritime shipping regulations.
What smart telemetry protocols and BMS protection features are supported?
Our custom smart BMS architectures support industry-standard communication protocols including UAVCAN, CANbus 2.0B, SMBus, UART, and RS485. Integrated hardware protections include multi-tier over-voltage, over-discharge, continuous over-current, short-circuit, and dual-channel NTC thermal cutoff safeties with active cell balancing options.
What are the recommended continuous and peak burst discharge margins?
To maximize lifecycle endurance and electrochemical stability, we recommend designing with a 15% to 20% continuous discharge headroom margin under typical operating loads. Peak burst discharge ratings should strictly adhere to specified duration windows (typically ≤10 seconds) while ensuring pack operating temperatures remain below 65°C.

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