1. Parameter Automatic Detection: After setting the parameters and exiting, 'ERR' blinks and is displayed as a reminder. Battery Connection Detection: This product is equipped with a battery. If the battery is not connected, 'NBE' is displayed as a reminder on the lower line. 2. Charging for Time Recording Function: If charging for the timer is not enabled, the product records the complete time once. When entering the time set for the time display interface, charging for the time blinks and is displayed. Then exit the time display interface or delete it when turned on next time (relay will be activated). 3. Can automatically charge and control, manage charging for the time, and set and upload the corresponding parameters via the serial port. 4. 6 60V battery, lithium battery can be used. LCD display shows battery voltage, charging percentage, and charging operations for the time at a glance.