OSALTECH 18650 3.7V 3200mAh Rechargeable Li-ion Battery

Description

The OSALTECH 18650 3.7V 3200mAh Rechargeable Li-ion Battery is a rechargeable cylindrical lithium-ion cell designed for a wide range of portable electronics, DIY projects, robotics, embedded systems and compatible battery-powered applications. Featuring a 3.7V nominal voltage and a marked capacity of 3200mAh, this battery provides a compact rechargeable power solution for projects where space, portability and repeated charging are important.

The standard 18650 form factor is widely used across electronics applications because it combines a compact cylindrical construction with rechargeable lithium-ion technology. This makes the OSALTECH battery suitable for students, electronics enthusiasts, engineers, makers and technicians building custom electronic systems.

The 18650 3.7V 3200mAh Rechargeable Battery can be installed in a compatible 18650 battery holder or incorporated into a properly designed battery pack. Depending on the project, it can also be combined with suitable charging, protection and voltage-conversion modules.

Key Features

• 3200mAh marked battery capacity
• 3.7V nominal voltage
• Standard 18650 cylindrical form factor
• Rechargeable lithium-ion technology
• Suitable for repeated charging and discharging
• Compact and convenient power source
• Suitable for compatible battery packs
• Ideal for DIY and educational electronics
• Can be used with compatible 18650 battery holders
• Suitable for robotics and embedded applications
• Compatible with appropriate Li-ion charging circuits
• Useful for portable and wireless electronics projects

Technical Specifications

3200mAh Rechargeable Capacity

The battery is marked with a capacity of 3200mAh, making it suitable for applications that require a rechargeable energy source. Actual operating time will depend on the connected load, operating current, discharge conditions, temperature and the efficiency of the electronic circuit.

For this reason, battery runtime should be calculated according to the requirements of the particular device rather than assuming a fixed backup time.

Standard 18650 Form Factor

The 18650 battery format is commonly used in electronics and battery-powered projects. Its cylindrical construction allows the battery to fit compatible 18650 holders and enclosures, making it convenient for prototyping and product development.

Using a suitable battery holder can also make battery installation and replacement easier while avoiding unnecessary direct soldering to the cell.

Applications

The OSALTECH 18650 3.7V 3200mAh Rechargeable Li-ion Battery can be considered for compatible applications including:

• Robotics projects
• Arduino-based projects
• ESP32 and IoT projects
• Portable electronics
• LED lighting systems
• Rechargeable DIY projects
• Embedded electronic systems
• Wireless sensor projects
• Educational electronics kits
• Prototype development
• Custom battery-powered circuits
• Compatible power-bank circuits
• Emergency lighting projects
• Portable testing equipment

Always verify the voltage and current requirements of the device before connecting the battery.

Suitable for Robotics and IoT Projects

Battery-powered robotics and IoT applications often require a compact rechargeable power source. An 18650 3.7V battery can be useful for powering compatible microcontroller circuits, sensors, communication modules and other electronics.

However, many electronic boards require regulated input voltages. Depending on the project, a suitable DC-DC boost converter, buck converter or voltage regulator may therefore be required between the battery and the electronic circuit.

Charging the 18650 Battery

Lithium-ion cells require a dedicated charging method. The battery should only be charged using a charger or charging module designed for the appropriate Li-ion cell configuration.

For suitable single-cell applications, modules such as the TP4056 Li-ion charging module are commonly used. The exact charging and protection arrangement should be selected according to the battery and application requirements.

Never attempt to recharge the cell using a charger intended for a different battery chemistry.

Building Battery Packs

18650 cells can be used to create battery packs by arranging compatible cells in series or parallel. However, battery-pack construction requires careful cell matching, protection and battery management.

When multiple lithium-ion cells are used together, an appropriate Battery Management System (BMS) should be selected according to the number of cells, operating voltage and expected current.

For permanent battery packs, professionally designed connections and suitable cell interconnection methods are recommended.

Battery Safety & Handling

Lithium-ion batteries must be handled carefully. Always observe correct polarity and use compatible charging and protection equipment.

Do not short-circuit the positive and negative terminals. Do not puncture, crush, dismantle, burn or expose the battery to excessive temperatures. Stop using a battery if it becomes physically damaged, swollen, excessively hot or shows other signs of abnormal operation.

Avoid direct soldering to the battery unless the cell and assembly process specifically support it. A suitable 18650 battery holder or professionally spot-welded battery pack is generally preferable.

Store batteries in a cool, dry location away from conductive objects and sources of heat.

Why Choose an 18650 Rechargeable Battery?

The 18650 3.7V 3200mAh Rechargeable Battery provides a convenient option for developers who need a compact and reusable power source. Its standard form factor makes it particularly useful for prototyping because compatible holders, charging modules and power-management boards are widely available.

For students and makers, it can provide a practical way to develop rechargeable electronics without relying on disposable batteries.