Dayton Audio LBB-5Sv2 18650 21V Lithium Battery Board

The Dayton Audio LBB-5Sv2 18650 21V Lithium Battery Board offers a dependable power management solution for your portable audio creations. Designed to integrate seamlessly into DIY amplifier builds, portable speakers, or any battery-powered electronic project, this board ensures stable and safe operation. Whether you are constructing a custom boombox, a portable headphone amplifier, or a compact test bench power supply, the LBB-5Sv2 provides the essential regulation and protection needed for reliable performance.

At its core, this board delivers a regulated 21V output from a series of 18650 lithium cells, making it ideal for powering Class D amplifier modules and other audio circuits that require a higher voltage rail. It incorporates comprehensive protection features including overcharge, overdischarge, and short-circuit safeguards, which help extend battery life and prevent damage to your components. The board also includes a low-battery indicator, giving you clear visual feedback when it is time to recharge. With its compact footprint and straightforward wiring terminals, the LBB-5Sv2 simplifies the process of adding a robust, protected power source to your projects. For hobbyists and professionals alike, this board represents a reliable foundation for portable audio electronics.