EVE INR18650-33V 3300mAh 10A Li-ion Battery for Flashlights, E-Bikes & DIY Battery Packs (1-100 PCS)

The EVE INR18650-33V 3300mAh 10A Continuous Discharge 18650 Li-ion Rechargeable Battery is a high-energy, dependable cylindrical bare cell manufactured by EVE Energy and supplied by DXF POWER with strict quality grading. Delivering an exceptional balance of substantial capacity and steady moderate-rate power output, this flat-top bare cell delivers a true 3300mAh capacity on a 3.6V nominal platform with a dependable 10A continuous discharge rate (CDR). Known for its cycle endurance (300+ cycles), stable discharge curve, and excellent energy density, the EVE 33V is the premier choice for high-lumen LED torches, custom energy storage packs, portable power banks, medical equipment, and light electric vehicle battery rebuilds.

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Key Features

• Genuine EVE INR18650-33V Cell: Authentic Grade-A 18650 cylindrical cell manufactured by industry leader EVE Energy
• 3300mAh High-Density Capacity: Generous 3300mAh capacity provides long runtimes for portable electronics, flashlights, and multi-cell packs
• 10A Continuous Discharge Rate (CDR): Reliable 10A continuous discharge output supports steady current draws without excessive heat buildup
• Long Cycle Endurance: Engineered for 300+ charge cycles with minimal capacity degradation under standard operating conditions
• Standard 3.6V Chemistry: Full charge voltage of 4.2V with standard 2.5V discharge cut-off for broad equipment compatibility
• Standard 18650 Flat-Top Design: Standard dimensions of 18.3 mm diameter × 65.0 mm length and ~48 g weight, ideal for precision spot welding and pack fabrication
• 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: EVE (EVE Energy Co., Ltd. / Supplied by DXF POWER)
• Model / Part No.: 33V (INR18650-33V)
• 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 protection or pack-level BMS)
• Capacity: 3300mAh
• Nominal Voltage: 3.6V
• Full Charge Voltage: 4.2V
• Discharge Cutoff Voltage: 2.5V
• Continuous Discharge Rate (CDR): 10A continuous
• Cycle Life: ~300+ charge cycles
• Rechargeable: Yes
• Cell Dimensions: Diameter: 18.3 mm × Length: 65.0 mm
• Cell Weight: Approx. 48 g
• Applications: High-lumen LED flashlights, custom energy storage packs, portable power banks and backup systems, medical devices, household electronics, light electric mobility (e-bikes/scooters), and custom DIY battery packs

Package Includes

• EVE INR18650-33V 3300mAh 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 – Single Cell Replacement: Quick replacement for high-drain torches, individual test benches, or handheld tools
• 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 portable power banks, robotics, medical tools, and auxiliary power supplies
• 50 PCS – E-Bike & Scooter Battery Rebuilds: Sized for assembling and refurbishing standard 36V/48V moderate-drain electric vehicle 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 rating 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 EVE INR18650-33V cells with authentic 3300mAh capacity and 10A continuous output
• High-energy-density chemistry with stable voltage retention and 300+ cycle life endurance
• 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 outdoor flashlight enthusiasts, electronics hobbyists, and DIY pack fabricators demanding dependable 3300mAh capacity and steady 10A continuous discharge for high-lumen torches, backup power systems, and custom energy assemblies.

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