First plug in the HotRC charger without a battery attached to make sure it's working. The voltage display will show 000 after a few moments.
When you plug in your battery and the charger still reads all three zeros - the battery is dead.
You can expect to replace the LiPo battery about once a year - or earlier depending on how closely you follow the charging instructions. A LiPo battery can go bad in as little as three days if the instructions are not followed.
See: Charging Home Original 11.1v battery
See: Charging, Use, and Storage of the Plus Battery
Aug 1, 2024