my LG G2 Mini wont boot up

[Abdelmalek HAMZA]

i have this problem my lg g2 mini doesn't boot up and just show a red exclamation mark inside the battery logo with 0% above the battery and when i plug it to my laptop it just connect and disconnect .... connect and disconnect

 

[B. Diddy]

Welcome to Android Central! It sounds like the battery is dead. Try a new one.