Li-Ion 3.7V 18650 Battery Cell (2000mAh)

Li-Ion 3.7V 18650 Battery Cell (2000mAh) – Product Overview

This Li-Ion 3.7V 18650 battery cell with 2000mAh nominal capacity is a rechargeable lithium-ion cylindrical cell that combines compact size with dependable power. Measuring 18 mm in diameter and 65 mm in length, the 18650 form factor is widely used in consumer electronics, power tools, electric mobility, renewable energy storage and hobbyist applications.

Key Benefits of the 2000mAh 18650 Cell

• High energy density in a small footprint for longer device runtime.
• Stable nominal voltage of 3.7V for predictable discharge performance.
• Durable cycle life designed for hundreds of cycles to lower lifecycle cost.
• Integrated safety features to protect against overcharge, over-discharge, short circuits and overheating.
• Low self-discharge for improved shelf life and reduced maintenance charging.
• Lightweight design ideal for portable and mobile battery pack builds.

Technical Specifications

• Cell type: Rechargeable lithium-ion 18650 cylindrical cell
• Capacity: 2000mAh (nominal)
• Nominal voltage: 3.7V
• Maximum charge voltage: 4.2V
• Discharge cut-off voltage: Typically 2.5 to 3.0V depending on model
• Continuous discharge current: Model dependent, typically 10A to 30A
• Dimensions: 18 mm diameter x 65 mm length
• Weight: Approximately 45 to 50 g
• Operating temperature: -20°C to +60°C

Common Applications

• Consumer electronics: Laptops, cameras, flashlights, power banks and portable audio devices.
• Electric mobility and EV packs: E-bikes, scooters, skateboards and electric vehicle battery modules.
• Power tools: Cordless drills, saws and handheld equipment.
• Renewable energy storage: Solar storage packs and off-grid systems.
• Medical and industrial: Portable medical devices, instrumentation and field sensors.
• Hobbyist and RC: Remote-controlled cars, helicopters and drones.

Safety, Charging and Handling Guidelines

Safe handling and proper charging extend battery life and reduce risk. Follow these manufacturer best practices:

• Use a Li-ion compatible charger: Always charge with a charger designed for Li-ion cells and do not exceed 4.2V maximum charge voltage.
• Avoid deep discharge: Do not routinely discharge below the recommended cut-off voltage to prevent capacity loss and cell damage.
• Prevent short circuits: Keep cell terminals away from metal objects and use proper holders or insulation for transport and storage.
• Temperature management: Charge and operate within the specified temperature range to preserve performance and safety.
• Storage recommendations: For long-term storage, keep cells in a cool, dry place at around 30 to 50 percent state of charge. Avoid direct sunlight and heat sources.
• Disposal and recycling: Recycle used Li-ion cells according to local regulations. Do not dispose of in household waste.

Integration and Battery Pack Design Tips

• Match capacity, internal resistance and discharge rating across cells when assembling multi-cell packs to ensure even performance.
• Include a Battery Management System (BMS) for multi-cell configurations to provide cell balancing and protection functions.
• Verify continuous discharge rating for high-drain applications to ensure safe operation under expected loads.
• Consider cell placement and thermal management in pack design to avoid hot spots and improve longevity.

Why Choose This Li-Ion 18650 Cell?

This 2000mAh Li-Ion 18650 battery cell offers a balanced combination of energy density, cycle life and safety features suitable for a wide range of applications. The cell is an efficient choice for engineers, product designers and hobbyists who need consistent performance in compact packages.

Note: Product images are for illustration purposes only. Specifications may vary slightly by manufacturing batch or model. Always refer to the datasheet for exact electrical and mechanical details before integrating into critical systems.