2-Pack 3.7V 2600mAh 18650 Button Top Rechargeable Li-ion Batteries – 9.62Wh, Unprotected Cells

Common Applications

Designed for compatible devices that use 3.7V 18650 button-top Li-ion rechargeable batteries, including:

• Solar lights
• CTronics security cameras
• Portable speakers
• Toys and electronic devices
• LED lighting
• GPS devices
• Outdoor lighting
• Other compatible electronics requiring 3.7V 18650 button-top cells

Important: Always verify your device's voltage, battery dimensions, terminal type, and protection requirements before ordering.

Key Features

• Grade A 18650 Cells: Premium-quality rechargeable Li-ion cells designed for reliable performance, stable energy delivery, and long cycle life.
• 2600mAh Capacity: Each battery provides a nominal capacity of 2600mAh / 9.62Wh.
• 3.7V Nominal Voltage: Maximum charging voltage of 4.2V.
• Button-Top Terminal: Designed for equipment requiring an 18650 button-top battery.
• Maximum Discharge Current: Up to 3C / 7.8A, based on manufacturer specifications.
• Standard Charge Current: 0.2C / 520mA.
• Rapid Charge Current: 0.5C / 1.3A.
• High Energy Density: Efficient energy storage in the compact 18650 format.
• Rechargeable: Designed for repeated charge and discharge cycles.
• Unprotected Cell: Does not contain a built-in protection circuit. Use only in compatible devices with appropriate battery protection and charging controls.

Specifications

• Quantity: 2 Batteries
• Manufacturer: Huaibei Qianlibird New Energy Technology Co., Ltd.
• Model: INR18650 2600mAh
• Cell Size: 18650
• Battery Chemistry: Rechargeable Li-ion
• Certification: UL 1642 Certified
• Nominal Voltage: 3.7V
• Maximum Charge Voltage: 4.2V
• Nominal Capacity: 2600mAh
• Energy: 9.62Wh per battery
• Positive Terminal: Button Top
• Maximum Discharge Current: 3C / 7.8A
• Standard Charge Current: 0.2C / 520mA
• Rapid Charge Current: 0.5C / 1.3A
• Discharge Cut-Off Voltage: 2.5V
• Upper-Limit Charging Voltage: 4.23V DC
• Charging Temperature Range: 0°C to 45°C
• Discharging Temperature Range: -20°C to 60°C
• Approximate Dimensions: 18.5mm × 67.5mm
• Approximate Weight: 45.5g per battery
• Rechargeable: Yes
• Protection Circuit: No – Unprotected

Important Compatibility Information

These batteries measure approximately 18.5mm × 67.5mm. Button-top 18650 batteries can be longer than standard flat-top 18650 cells.

Before purchasing, verify that your device:

• Uses a 3.7V rechargeable Li-ion 18650 battery
• Requires a button-top positive terminal
• Can accommodate an approximately 18.5mm × 67.5mm battery
• Is designed to operate safely with an unprotected 18650 cell

Important Safety Information

These are UNPROTECTED 18650 Li-ion cells and do not have a built-in protection circuit.

These cells are intended to be installed in compatible equipment or a protective enclosure that prevents user access to the cells and associated circuitry during charging and discharging.

Use only with equipment that provides the appropriate battery protection and charging controls required for Li-ion cells.

Do not use these batteries as replacements for protected 18650 batteries unless the device is specifically designed for unprotected cells.

Do not short-circuit, puncture, crush, disassemble, expose to excessive heat, or use a damaged battery. Use only a compatible Li-ion charger or charging system.