This 2.6v 3s BMS (18650 Lithium Battery Protection Board Power Bank Cells Charging PCB) is a must-have for anyone looking to protect their charger and PCB board. Designed for use in electrical circuitry and parts, this BMS is perfect for DIY enthusiasts and professionals alike. With its advanced protection features, it ensures that your power bank cells are always charged safely and efficiently. The BMS is compatible with 18650 lithium batteries and comes with a charger protection PCB board. Its compact design makes it easy to install and use. Whether you're working on a DIY project or need a reliable BMS for your professional work, this product is the perfect choice.