Why won't my Nintendo Switch turn on even though it's charged?

When a Nintendo Switch console refuses to turn on even though you believe the battery is charged, the problem is typically caused by a temporary system crash, a frozen boot state, or a deeply depleted battery safety lock. Often, the console's internal operating system has encountered a fatal error during sleep mode, causing it to freeze in a black-screen state that mimics a dead battery. To resolve this, you must perform a hard reset by holding the physical Power button down continuously for fifteen seconds to force a complete hardware reboot. You can troubleshoot power failures safely. You can verify that your corrective action is successful when holding the power button forces the system to shut down and pressing it again boots the console normally, displaying the home screen without data loss.