The SL4057 is a SOT-23-6 Battery Management IC, manufactured by SLKORMICRO, that is RoHS Compliant, meaning it minimizes or eliminates the use of hazardous materials such as lead, hexavalent chromium, and cadmium. This device is intended to help protect and improve the reliability of rechargeable lithium chemistry batteries. The components that make this possible are overcurrent protection, active cell balancing protection, overcharge and overdischarge protection, overtemperature protection, and strong short-circuit protection. Furthermore, the device can be integrated with slim margin into small systems, allowing for a smaller and simpler product design.