Is disconnecting the battery a good way to reset the check engine light?

Disconnecting the battery can temporarily reset the check engine light by erasing the vehicle's trouble codes stored in the engine control unit. However, this method does not address the underlying issue that triggered the light in the first place. If the problem persists, the check engine light will likely come back on after reconnecting the battery. It's advisable to diagnose and fix the root cause of the issue rather than relying solely on this method.