How long can a car key still be used after the battery replacement reminder?

[McKylie]

Car key batteries typically last for three years after replacement. Relevant information is as follows: 1. Introduction: The lifespan of a car key battery is generally 2-3 years. However, due to differences in usage habits, some drivers' car keys may run out of power in just one year, while others can last for 5 or even 10 years. This is largely related to our usage habits. On average, the lifespan is slightly over 2 years. With poor usage habits, the battery may die within a year. 2. Function: When the car key battery needs replacement, there's no need to visit the 4S store. In fact, the function settings and execution of the car key are determined by the motherboard inside the key, while the battery provides the power needed for these functions to operate.