UltraFire BRC 18650 6000mAh 3.7V Li-ion Rechargeable Battery

Description

The UltraFire BRC 18650 6000mAh 3.7V Li-ion Rechargeable Battery is a cylindrical rechargeable lithium-ion cell designed for compatible portable electronics, LED lighting, DIY projects, robotics and battery-powered electronic applications. Featuring the widely used 18650 form factor, this battery provides a convenient rechargeable power solution for projects and devices designed to operate with 3.7V lithium-ion cells.

The battery is marked BRC 18650, 6000mAh and 3.7V Li-ion. Its cylindrical construction makes it suitable for compatible 18650 battery holders and electronic assemblies. Unlike disposable cells, a rechargeable Li-ion battery can be charged and reused when paired with an appropriate lithium-ion charger.

The UltraFire BRC 18650 6000mAh 3.7V battery can be used as a single cell or incorporated into a properly engineered battery pack where the electrical requirements permit. When designing a battery-powered project, users should consider the required operating voltage, current consumption, charging circuit and battery protection requirements.

Important capacity note: 6000mAh is the capacity marked on the supplied cell. Actual usable capacity can vary between cells and operating conditions. For your INFYNIQS product page, I recommend describing this as “6000mAh marked/rated capacity” rather than independently guaranteeing 6000mAh unless you have verified the cells with a capacity test.

Key Features

• UltraFire BRC 18650 rechargeable battery
• 3.7V nominal voltage
• 6000mAh marked capacity
• Rechargeable lithium-ion chemistry
• Standard 18650 cylindrical form factor
• Suitable for compatible 18650 battery holders
• Reusable alternative to disposable batteries
• Suitable for DIY electronics and prototyping
• Can be used with compatible charging modules
• Suitable for LED and portable electronic projects
• Can be incorporated into properly designed battery packs
• Compact cylindrical rechargeable power source

Technical Specifications

Note: Specifications above are based on the markings visible on the supplied product. Verify electrical performance before using the cell in applications with critical current, runtime or capacity requirements.

18650 Rechargeable Battery Format

The 18650 format is one of the most commonly encountered cylindrical lithium-ion cell formats in electronics. It is widely used in rechargeable battery assemblies and portable electronic projects because it provides a compact way to store electrical energy.

The UltraFire battery shown here uses a button-top positive terminal, which should be considered when selecting a battery holder or device. Compatibility can differ between button-top and flat-top 18650 cells, so users should verify the physical and electrical requirements of their equipment before purchase.

3.7V Li-ion Power Source

This battery has a nominal voltage of 3.7V, typical of many rechargeable lithium-ion cells. It should not automatically be treated as a direct replacement for batteries of another chemistry or voltage simply because they have a similar physical size.

Electronic projects requiring regulated 5V, 3.3V or another voltage may require an appropriate voltage regulator, boost converter, buck converter or dedicated power-management circuit.

For microcontroller and robotics projects, always check the input-voltage specifications of the development board and connected components before connecting the battery.

Applications

The UltraFire BRC 18650 6000mAh 3.7V Li-ion Rechargeable Battery can be considered for compatible applications including:

• DIY electronics projects
• Arduino-based projects
• Robotics prototypes
• IoT development projects
• LED lighting projects
• Portable electronic devices
• Rechargeable prototype circuits
• Electronic experimentation
• Wireless sensor projects
• Battery-powered development boards
• Compatible flashlights and torches
• Emergency lighting projects
• Custom electronic enclosures
• Compatible battery packs
• Educational electronics projects

Compatibility should always be confirmed according to the voltage, current and battery requirements of the intended device.

Charging Requirements

The UltraFire 18650 Li-ion battery must be charged using equipment specifically designed for rechargeable lithium-ion cells. Do not attempt to charge it using chargers designed exclusively for NiMH, NiCd, lead-acid or other battery chemistries.

For single-cell DIY applications, compatible lithium-ion charging modules may be used when properly selected and configured. A charging/protection solution should provide suitable control against unsafe charging and discharging conditions.

Never leave questionable or damaged lithium-ion cells charging unattended, and discontinue use if the battery becomes unusually hot, swollen, damaged or shows other abnormal behaviour.

Battery Protection and Project Integration

When integrating an 18650 cell into a permanent electronics project, suitable battery protection circuitry is important. Depending on the application, protection may be required against overcharging, excessive discharge, overcurrent and short circuits.

When multiple cells are used to create a battery pack, the design becomes more complex. Series and parallel battery configurations should only be assembled using appropriately matched cells and a suitable Battery Management System (BMS).

For permanent packs, proper battery-pack assembly techniques such as suitable holders or professional spot welding are preferable to directly soldering onto the cell.

Safety Instructions

Lithium-ion batteries should be handled carefully. Always confirm the correct polarity before connecting the cell. Never short-circuit the positive and negative terminals.

Do not puncture, crush, dismantle, burn or expose the battery to excessive temperatures. Keep loose batteries away from keys, coins, tools and other conductive metal objects that could short the terminals.

Do not use a battery with damaged wrapping, leakage, swelling, corrosion or physical deformation. Store batteries in a cool, dry location away from direct sunlight and combustible materials.