LG MJ1 INR18650-MJ1 3500mAh 10A Li-ion Battery for E-Bikes, Flashlights & DIY Battery Packs (1-100 PCS)

The LG MJ1 INR18650-MJ1 3500mAh 10A Continuous Discharge Li-ion Rechargeable Battery is an industry-benchmark ultra-high-capacity 18650 cylindrical cell manufactured by LG Chem and supplied by DXF POWER with strict quality grading. Engineered for maximum energy density and prolonged runtime under moderate-to-high discharge rates, this flat-top bare cell delivers a class-leading 3500mAh nominal capacity (3350mAh minimum) on an average 3.635V nominal platform with a dependable 10A constant continuous discharge rating. Celebrated for its exceptional capacity retention, stable discharge plateau, and excellent thermal safety, the LG MJ1 is the gold standard for long-range electric bicycles, scooters, high-lumen LED torches, portable power stations, and custom DIY battery packs.

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Key Features

• Genuine LG Chem MJ1 Cell: Authentic Grade-A 18650 cylindrical cell engineered for maximum energy density in the 18650 form factor
• 3500mAh Ultra-High Capacity: 3500mAh nominal capacity (3350mAh minimum) delivering maximum runtime for long-distance mobility and illumination
• 10A Constant Continuous Discharge: Reliable 10A constant continuous discharge rating without thermal cut-off to power medium-to-high drain equipment
• Average 3.635V Platform: Stable operating voltage with standard 4.20V charging and 2.50V discharge cut-off
• Fast CC-CV Charging: Supports charge currents up to 1.0C (3500mA) with standard CC-CV charge cycle
• Standard 18650 Flat-Top Design: Standard dimensions of ~18.5 mm diameter × 65.0 mm length and ~49.0 g weight, optimized for precision spot welding
• Multiple Pack Bundles: Available in 1, 10, 20, 50, and 100 piece packages for individual replacements or large-scale pack fabrication
• Strict Factory Quality Testing: Cells are inspected for voltage balance, internal resistance, and capacity consistency across every batch

Specifications, Per Battery

• Brand / Manufacturer: LG Chem (Supplied by DXF POWER)
• Model / Part No.: INR18650-MJ1 / INR18650MJ1 (MJ1)
• Cell Format: 18650 Cylindrical Rechargeable Lithium-ion (Li-ion)
• Positive Pole: Flat (Flat Top)
• Protection Circuit: Without (Unprotected industrial bare cell; requires compatible device-level or pack-level protection)
• Nominal Capacity: 3500mAh
• Minimum Capacity: 3350mAh
• Nominal Voltage: Average 3.635V
• Max. Continuous Discharge Current: 10A
• Standard Discharge Cut-Off Voltage: 2.5V (Standard 0.2C / 670mA)
• Max. Charge Voltage: 4.2V ± 0.05V
• Max. Charge Current: 1.0C (3500mA)
• Operating Temperature: Charge: 0°C to 45°C; Discharge: -20°C to 60°C
• Cell Dimensions: Diameter: ~18.5 mm × Height: 65.0 mm
• Cell Weight: Approx. 49.0 g
• Applications: Electric bicycles (e-bikes), electric scooters, high-lumen flashlights, portable power banks, and custom DIY battery packs

Package Includes

• LG MJ1 INR18650-MJ1 3500mAh 10A battery cells, quantity chosen from 1, 10, 20, 50, or 100 PCS
• Protective packaging / cell box
• User manual and battery safety guide

Choose Your Ideal Power Bundle

• 1 PCS – Quick Replacement & Testing: Single cell for flashlight upgrade, testing, or individual cell repair
• 10 PCS – Portable Light & Device Packs: Ideal for high-lumen multi-cell torches, camping lanterns, and small electronics
• 20 PCS – Compact Energy Modules: Perfect for small portable power banks, robotics, and auxiliary power supplies
• 50 PCS – E-Bike & Scooter Battery Rebuilds: Sized for building and refurbishing standard 36V/48V electric bicycle packs
• 100 PCS – Master Builder Bulk Set: Best value for workshops, custom pack assemblers, and volume battery builders

Purchasing in bundles ensures matched cell batches for balanced series and parallel assembly.

180-Day Warranty & Customer Support

Every cell batch supplied by DXF POWER is covered by a 180-day manufacturer warranty against defects in materials and craftsmanship. Our technical support team is always available to assist with charging parameters, pack layout recommendations, and safety practices.

Usage & Safety Guidelines

• Use a dedicated lithium-ion smart charger supporting CC/CV charging mode up to 4.20V.
• Never charge above 4.25V per cell or discharge below 2.50V per cell.
• Never exceed the maximum continuous discharge current of 10A.
• Always inspect cell outer shrink wrap, insulator ring, and terminals for damage before use; rewrap immediately if damaged.
• Never carry loose 18650 batteries in pockets, bags, or purses with metal objects like keys or coins; practical storage in an insulated battery case is essential.
• Do not short-circuit, crush, incinerate, puncture, or submerge cells in water.
• Store batteries at 3.60V–3.85V per cell in a cool, dry, well-ventilated location away from direct sunlight.
• When building multi-cell packs, always integrate a quality Battery Management System (BMS) with over-current, over-charge, over-discharge, and thermal balance protection.

Why Choose DXF?

• Genuine Grade-A LG Chem MJ1 cells with industry-leading 3500mAh capacity and 10A continuous output
• Maximum energy density for long-range electric bicycles and extended-runtime illumination
• Carefully matched batches for balanced series and parallel pack assembly
• Strict factory pre-shipment quality checks and secure protective packaging
• Global warehouse logistics network and professional technical customer support

Perfect For

Engineered for e-bike enthusiasts, contractors, flashlight users, and DIY pack fabricators demanding maximum 3500mAh capacity and reliable 10A continuous discharge for long-range electric mobility, high-lumen lighting, robotics, and custom energy modules.

Power your projects with trusted LG Chem performance. Learn more about setups and battery care on the DXF YouTube channel.