5V lithium battery charging protection board with TP4056 IC and DW01 protection circuit, 4.2V charging cut-off, 2.5V over-discharge protection, 3A overcurrent protection, maximum 1000mA charging current, measuring 2.6 x 1.7 cm with blue PCB design
TP4056 lithium battery charging and protection board with DW01 circuit for 3.7V battery management

This integrated charging and protection board provides a comprehensive solution for managing single-cell 3.7V lithium-ion and lithium-polymer batteries. Designed around the TP4056 charging IC and DW01 protection circuit, it combines charging management with essential safety features in a compact 26mm × 17mm format. The board accepts standard 5V input voltage, making it compatible with common USB power sources and adapters, while delivering up to 1000mA charging current for efficient battery replenishment. With precise voltage regulation and multiple protection mechanisms, it offers reliable battery management for DIY projects, portable devices, and electronics applications requiring safe lithium battery charging.
Features and Construction

The board's design centres on two key integrated circuits that handle charging management and battery protection functions. The compact PCB layout efficiently arranges these components alongside supporting resistors and capacitors while maintaining a straightforward connection interface. Through-hole pins provide reliable termination points for power input, battery connections, and optional status indicators, making integration into various projects straightforward.
Material and Build
Constructed on a blue FR4 PCB substrate with copper traces, the board features surface-mount components for the TP4056 charging IC and DW01 protection circuit. Supporting components including resistors and capacitors maintain proper circuit operation, while through-hole pins at the board's edge facilitate connection to external power sources, batteries, and optional status indicators. The board's physical design prioritises accessibility of connection points while keeping overall dimensions minimal at 26mm × 17mm.
Size and Practical Fit
Measuring 26mm in length and 17mm in width, the board occupies minimal space in project enclosures or device interiors. The compact dimensions allow installation in tight spaces while still providing accessible connection points. The through-hole pin arrangement simplifies wiring with standard connectors or direct soldering, and the board's low-profile components minimise vertical space requirements. This sizing makes it suitable for integration into portable electronics, DIY battery packs, and various embedded applications where space efficiency matters.
Uses and Placement

This charging and protection board serves multiple applications where safe lithium battery management is required without complex circuit design. Its combination of charging regulation and protection features makes it particularly useful for projects that benefit from ready-made battery management solutions. The standard 5V input compatibility simplifies power supply considerations across different implementation scenarios.
Event or Professional Use
For exhibition displays, temporary installations, or professional prototypes requiring portable power, this board provides reliable battery management without extensive custom circuitry. The protection features safeguard against battery damage during extended operation, while the charging function allows convenient recharging between uses. Event organisers and professionals can integrate it into portable lighting systems, demonstration units, or temporary monitoring equipment with confidence in battery safety and recharge capability.
Everyday Home Use
DIY enthusiasts and makers can incorporate this board into various home electronics projects, from portable speakers and custom power banks to smart home devices and hobby robotics. The straightforward connection requirements and standard voltage compatibility reduce implementation complexity, while the protection features provide peace of mind for projects left charging unattended. Home users appreciate the integration of both charging and protection functions in one compact module, eliminating the need for separate circuits.
Benefits and Buying Value

The board's value lies in combining multiple functions typically requiring separate components into one integrated solution. This integration simplifies project design while maintaining reliable performance through dedicated ICs for each function. The standard specifications ensure compatibility with common components and power sources available to most users.
Reuse and Low Maintenance
The board's design allows repeated charging cycles while protecting the battery from conditions that would shorten its lifespan. The over-discharge protection prevents deep discharge damage, the overcurrent protection safeguards against excessive load conditions, and the precise charging termination avoids overcharging. These features collectively support extended battery usability with minimal maintenance requirements beyond basic connection integrity checks.
Why Choose This Product
This charging and protection board offers a complete lithium battery management solution in one compact module, eliminating the need to source and integrate separate charging and protection circuits. The TP4056 and DW01 ICs provide proven performance with specified protection thresholds, while the 5V input compatibility ensures easy integration with common power sources. For projects requiring reliable lithium battery management without extensive circuit design, this integrated board provides specified performance in a ready-to-use format.