Compact lithium battery charging and protection board with 5V input and 1000mA charging capacity

This integrated charging and protection board provides a complete solution for managing single-cell lithium batteries in electronic projects. Measuring just 2.6cm × 1.7cm, the blue PCB board combines charging circuitry with essential battery protection features in a space-efficient design. The board accepts 5V input voltage—compatible with common USB power sources—and delivers controlled charging with precise voltage termination at 4.2V ±1%. With a maximum charging current of 1000mA, it offers practical charging speeds for various lithium battery applications while maintaining safety through integrated protection circuits.

Features and Construction

The board integrates multiple functions typically requiring separate modules, simplifying lithium battery management in DIY electronics. The compact footprint allows installation in space-constrained projects where traditional separate charging and protection modules would be impractical.

Material and Build

The board utilises a standard printed circuit board (PCB) construction in blue colour, providing both structural support and electrical connectivity for the integrated components. The blue PCB colour serves as a visual identifier in completed projects, though no information is provided about surface finishes, component quality grades, or manufacturing standards. The integration of charging and protection functions on a single board eliminates the need for separate modules and their interconnecting wiring.

Size and Practical Fit

With dimensions of 2.6cm × 1.7cm, the board offers considerable space savings compared to using separate charging and protection modules. This compact size makes it suitable for portable electronics projects, embedded systems, and other applications where internal space is limited. The rectangular shape with no specified mounting holes means installation methods will need to be adapted based on individual project requirements, though adhesive mounting or custom brackets would be typical solutions.

Uses and Placement

The integrated nature of this board makes it applicable to various lithium battery-powered projects where both charging capability and battery protection are required. The specific electrical parameters define its suitability for different applications based on battery capacity and power requirements.

Event or Professional Use

For professional prototyping or commercial product development, this board provides a tested charging and protection solution that can be incorporated into designs without developing custom circuitry. The 3A overcurrent protection and 2.5V over-discharge protection offer basic battery safety features suitable for prototype validation and small production runs. Educational settings could utilise this board to demonstrate lithium battery management principles with actual working circuitry.

Everyday Home Use

DIY electronics enthusiasts can incorporate this board into custom power banks, portable lighting systems, small robotics projects, and other battery-powered creations. The 5V input compatibility makes it convenient to charge from standard USB ports, while the protection features help prevent battery damage during use. Hobbyists creating wearable electronics or compact portable devices will particularly appreciate the small footprint that doesn't dominate project interiors.

Benefits and Buying Value

The integrated approach of this board provides several practical advantages for lithium battery projects, primarily through simplified implementation and reduced component count compared to separate solutions.

Reuse and Low Maintenance

As a self-contained module, this board can be transferred between projects or reused if initial applications are retired. The protection circuitry helps extend battery lifespan by preventing damaging conditions, though no specific lifespan data is provided for either the board or batteries used with it. The absence of moving parts contributes to reliability, with maintenance limited to ensuring proper connections remain secure during use.

Why Choose This Product

This board offers a practical middle ground between building custom circuitry from discrete components and purchasing more expensive commercial modules with additional features that may not be needed. The combination of charging and protection on one board with clearly stated electrical parameters allows for informed design decisions. For projects requiring basic lithium battery management without advanced features like battery monitoring or communication interfaces, this integrated solution provides essential functionality in a compact, straightforward implementation.