LG M58T INR21700-M58T 5800mAh 12.5A Li-ion Battery for E-Bikes, Flashlights & DIY Battery Packs (1-100 PCS)

The LG M58T INR21700-M58T 5800mAh 12.5A Continuous Discharge Li-ion Rechargeable Battery is an industry-leading ultra-high-capacity 21700 cylindrical power cell manufactured by LG Chem and supplied by DXF POWER with strict quality grading. Boasting an incredible 5800mAh nominal capacity (5570mAh minimum) on a 3.59V nominal platform, this flat-top bare cell delivers up to 12.5A constant continuous discharge current across a wide temperature spectrum (-20°C to +70°C). Designed for applications demanding maximum energy density and extended operating time, the LG M58T represents the next generation in cylindrical lithium-ion power for long-range electric bicycles, scooters, high-lumen LED torches, and custom DIY battery packs.

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Key Features

• Genuine LG Chem M58T Cell: Authentic Grade-A 21700 cylindrical power cell delivering massive energy density in standard 21700 dimensions
• 5800mAh Ultra-High Capacity: Remarkable 5800mAh nominal capacity (5570mAh minimum) delivers exceptional endurance for prolonged operations
• 12.5A Constant Continuous Discharge: Delivers true 12.5A continuous current output without thermal cut-off, optimized for sustained power draw
• 3.59V Nominal Platform: Stable discharge curve with standard 4.20V charging and 2.50V discharge cut-off
• Broad Thermal Operating Range: Performs reliably from -20°C up to +70°C discharge, ideal for demanding outdoor environments
• Standard 21700 Flat-Top Design: Dimensions of 21.8 mm diameter × 71.0 mm height and 73.2 g max weight, ideal 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.: INR21700-M58T / INR21700M58T (M58T)
• Cell Format: 21700 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: 5800mAh
• Minimum Capacity: 5570mAh
• Nominal Voltage: 3.59V
• Max. Continuous Discharge Current: 12.5A (-20°C to +70°C)
• Discharge Cut-Off Voltage: 2.50V
• Charge Voltage: 4.20V
• Standard Charge Current: 1120mA
• Max. Charge Current: 2.7A (4.20V cut off, 10°C–50°C) / 5.0A (4.0V cut off, 10°C–40°C)
• Operating Temperature: Charge: 0°C to 50°C; Discharge: -20°C to 60°C
• Cell Dimensions: Diameter: 21.8 mm × Height: 71.0 mm
• Cell Weight: Max. 73.2 g
• Applications: Electric bicycles (e-bikes), electric scooters, high-lumen flashlights, portable energy storage, and custom DIY battery packs

Package Includes

• LG M58T INR21700-M58T 5800mAh 12.5A 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 12.5A.
• Always inspect cell outer shrink wrap, insulator ring, and terminals for damage before use; rewrap immediately if damaged.
• Never carry loose 21700 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 M58T cells with true 5800mAh ultra-high capacity and 12.5A continuous output
• Next-generation energy density tailored for maximum runtime and range
• 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 builders, electric scooter riders, flashlight enthusiasts, and DIY pack fabricators demanding maximum 5800mAh ultra-high capacity and stable 12.5A continuous discharge for long-range electric mobility, high-lumen lighting, and custom energy storage modules.

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