How do I check the battery voltage?

While the battery is FULLY charged, check out the battery voltage following below technical support video:
https://www.youtube.com/watch?v=6QK83ji0sGQ&list=PLEkd_tyWYYKc6onPADzqK_YBTIBSxKlWn&index=3&t=0s
PS: Multimeter is necessary for all electric skateboards, not only for MEEPO board. The Multimeter should be set as 200V.