After you run a pack, turn off the ESC , the data will be saved to the memory then. Connect the LCD box to the speedo and turn it on, wait for the normal procedure of connecting completed and the Item 1A showed, press the 3rd button from the left, it will show the mode, press it again to show the 1st data recorded and so on. Max. ESC temp, Max Motor temp., Min. battery voltage and Max. RPM can be read out.
The data in the memory will be updated(or cleared) when you turn the speedo on and off next time.