Samsung INR18650-20R 2000mAh 20A Li-ion Battery for Power Tools, E-Vehicles & DIY Battery Packs (1-100 PCS)

The Samsung INR18650-20R 2000mAh 20A Continuous Discharge Li-ion Rechargeable Battery is an industrial-grade, high-drain power cell designed specifically for high current loading applications. With a nominal voltage of 3.6V and a capacity of 2000mAh, this flat top cylindrical cell is engineered for devices that demand reliable, instant power delivery under intense load conditions. Commonly utilized in industrial applications including power tools, light electric vehicles, and custom-built energy storage systems, the INR18650-20R delivers robust performance, exceptional thermal tolerance up to 75°C, and consistent 20A continuous discharge current.

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Key Features

• Genuine Samsung SDI 20R Cell: Authentic Grade-A cylindrical lithium-ion cell built for high-drain performance and outstanding structural reliability
• 20A Continuous Discharge: Delivers up to 20A continuous output without excessive voltage sag, tailored for high-load industrial tools and electric mobility
• High-Rate Fast Charging: Supports up to 4000mA (4A) rapid charging current for minimized downtime between operations
• Wide Thermal Range: Reliable operation in extreme environments with a operating temperature range from -20°C up to +75°C
• Standard 18650 Flat-Top Design: Standard 18.5 × 65.0mm form factor with flat top positive terminal, perfect for spot-welded packs, battery sleds, and custom modular arrays
• Multiple Pack Bundles: Available in 1, 10, 20, 50, and 100 piece bundles for single repairs or volume pack manufacturing
• Strict Factory Quality Testing: Cells are inspected for voltage uniformity, low internal resistance, and matched capacity across every batch

Specifications, Per Battery

• Brand / Manufacturer: Samsung SDI (Supplied by DXF POWER)
• Model / Type: INR18650-20R (20R)
• Chemistry: Lithium-ion (Li-ion)
• Battery Size / Form Factor: 18650 Flat Top
• Positive Terminal: Flat Top
• Nominal Capacity: 2000mAh
• Continuous Discharge Current (Max): 20A
• Nominal Voltage: 3.6V
• Maximum Charge Voltage: 4.2V
• Discharge Cut-Off Voltage: 2.5V
• Maximum Charge Current: 4000mA (4A)
• Operating Temperature: -20°C to +75°C
• Protected: No (Unprotected industrial cell)
• Rechargeable: Yes
• Dimensions (Ø × H): Approximately 18.5mm (Diameter) × 65.0mm (Length)
• Weight (Per Battery): Approximately 45.0g
• Applications: Cordless power tools, electric vehicles/scooters, high-drain RC models, industrial equipment, robotics, and custom DIY battery packs

Package Includes

• Samsung INR18650-20R 2000mAh 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 tool battery replacement or benchmark testing
• 10 PCS – Small Tool Rebuilds: Perfect for rebuilding cordless drill and driver battery packs
• 20 PCS – High-Output Modules: Ideal for 36V or 48V auxiliary modules, high-load robotics, and DIY power packs
• 50 PCS – Heavy-Duty Packs: Tailored for electric mobility modules, lawn equipment packs, and high-discharge portable power
• 100 PCS – Master Builder Bulk Set: Best value for repair shops, commercial fabricators, and custom battery assemblers

Buying in bundles guarantees matched batch consistency for safe series and parallel cell configurations.

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. Customer support is readily available for guidance on cell compatibility, charging parameters, and pack assembly precautions.

Usage & Safety Guidelines

• Use a dedicated lithium-ion smart charger supporting CC/CV charging mode.
• Never charge above 4.20V per cell or discharge below 2.50V per cell.
• Do not exceed the maximum charging current of 4000mA (4A).
• Always inspect cell outer shrink wrap, insulator ring, and terminals for damage before use; rewrap immediately if torn.
• Never carry loose 18650 batteries in pockets, bags, or purses with metal objects like keys or coins; always store in an insulated battery case.
• Do not short-circuit, crush, incinerate, puncture, or submerge cells in water, and avoid temperatures exceeding 75°C.
• 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-charge, over-discharge, and balance protection.

Why Choose DXF?

• Genuine Grade-A Samsung SDI 20R cells with true 2000mAh high-drain performance
• Reliable 20A continuous discharge current under heavy operational loads
• Carefully matched batches for balanced series and parallel pack assembly
• Strict factory pre-shipment quality checks and secure shipping packaging
• Global warehouse logistics network and professional technical customer support

Perfect For

Engineered for contractors, technicians, DIY pack builders, and RC/EV enthusiasts who need dependable 20A continuous high-drain power for cordless tools, electric transport, robotics, and custom high-load battery modules.

Power your projects with trusted Samsung 18650 performance. Learn more about setups and battery care on the DXF YouTube channel.