The JCID Battery Fast Charging Board (BT01) is a versatile and easy-to-use tool that helps you quickly and easily charge your batteries. This board is perfect for repairing and testing your batteries, and it can also be used to charge your batteries in a pinch. The BT01 is equipped with a built-in microcontroller that automatically detects the type of battery you are using, so you can be sure that your batteries are always properly charged. The BT01 also features a built-in safety timer that prevents overcharging, so you can be sure that your batteries are always safe. The BT01 is the perfect tool for anyone who needs to charge their batteries quickly and easily.