Features: 【Efficient Fast Charging Experience】The upgraded 21700 powerful 180A fast charging with 6amp input significantly reduces charging time. 【Intelligent Balancing Protections】Built-in balancing protections board ensures consistent voltages across each battery cell, prolonging battery life and enhancing safety 【Durability】Constructed with highly quality PCB, offering exceptionally conductivity and durability 【Broad Compatibility Design】Supports multiple battery models to meet the needs of various devices, thereby reducing the frequency of accessory replacements for users. 【Convenient Installation Structure】Easy to install without tools, optimizing user experience and saving time and effort. Specifications: Substance: PCB Size: 99x70mm 6amp fast charging, upgraded to 4 large TOLLs, with temperature control function Supports powerful 180A fast charging and has a balancing security function, which effectively extends battery life and improves charging efficiency. Suitable for fast charging needs of consumer electronic devices Package Includes: 1PC 180A supports 6amp fast charging with equalization security board note: Please allow 1-2cm errors due to manual measurement. Pictures may not reflect actual color due to different monitors.