LG HJ2 INR18650HJ2 3000mAh 20A Li-ion Battery for Power Tools, Vacuums & DIY Battery Packs (1-100 PCS)

The LG HJ2 INR18650HJ2 3000mAh 20A Continuous Discharge Li-ion Rechargeable Battery is an advanced, high-performance 18650 cylindrical cell manufactured by LG Chem and supplied by DXF POWER with strict quality grading. Engineered specifically for demanding high-drain applications such as cordless power tools and high-power vacuum cleaners, this flat-top bare cell delivers a generous 3000mAh nominal capacity (2950mAh minimum) on a 3.6V nominal platform with a dependable 20A constant continuous discharge rating. Featuring fast charging support up to 6000mA (2C), excellent thermal stability, and consistent voltage retention under load, the LG HJ2 is the premier choice for tool battery rebuilding, cordless vacuum upgrades, RC models, and custom DIY battery packs.

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Key Features

• Genuine LG Chem HJ2 Cell: Authentic Grade-A 18650 cylindrical cell engineered for modern high-drain power tool and vacuum applications
• 20A Constant Continuous Discharge: Delivers true 20A continuous discharge current without thermal cut-off to power heavy-duty motors and electronics
• 3000mAh High Capacity: 3000mAh nominal capacity (2950mAh minimum) providing extended operational runtime
• High-Rate Fast Charging: Supports rapid charging currents up to 6000mA (2C) with standard charge time of approx. 3 hours
• Standard 18650 Flat-Top Design: Standard dimensions of 18.5 mm diameter × 65.0 mm height and ~47 g weight, optimized for spot welding
• Multiple Pack Bundles: Available in 1, 10, 20, 50, and 100 piece packages for single cell 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.: INR18650HJ2 (HJ2)
• 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: 3000mAh
• Minimum Capacity: 2950mAh
• Nominal Voltage: 3.6V
• Max. Continuous Discharge Current: 20A
• Standard Discharge Cut-Off Voltage: 2.5V
• Max. Charge Current: 6000mA (2C)
• Standard Charging End Current: 50mA
• Charging Time: ~3 hours (Standard)
• Cell Dimensions: Diameter: ~18.5 mm × Height: 65.0 mm
• Cell Weight: Approx. 47.0 g
• Applications: Cordless power tools, vacuum cleaners, robotics, RC models, and custom DIY battery packs

Package Includes

• LG HJ2 INR18650HJ2 3000mAh 20A 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 vacuum testing, equipment inspection, or individual cell repair
• 10 PCS – Vacuum & Tool Pack Rebuilds: Perfect for rebuilding cordless vacuum cleaners and power tool packs (Dyson, Makita, Milwaukee)
• 20 PCS – High-Output Modules: Ideal for RC models, robotics, and dual-pack tool battery overhauls
• 50 PCS – Mobility & Energy Modules: Tailored for electric skateboards, scooters, and portable energy packs
• 100 PCS – Volume Pack Assembly: Best value for workshops, repair centers, and custom 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 20A.
• 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 HJ2 cells with true 3000mAh capacity and 20A high-drain output
• Tested continuous discharge performance under demanding operational loads
• 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 contractors, vacuum repair specialists, RC hobbyists, and DIY pack fabricators demanding dependable 3000mAh capacity and 20A high-drain power delivery for cordless vacuums, power tools, 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.