Why my xbox series s doesn't turn on?

I have an Xbox series S that doesn't turn on. I plug in the power cord, but it doesn't turn on, and I think that is the battery or the motherboard. If it is the battery, how do I test it with a multimeter, and what should it show?

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0