How Long Does the Battery of a Tire Pressure Monitoring System Generally Last?
2 Answers
Tire pressure monitoring built-in sensor batteries have a lifespan of 7-8 years, while external sensor batteries last 3-5 years. Below are detailed explanations for these two types of batteries: Built-in Sensor Battery: The sensors of built-in tire pressure monitors are installed inside the tires. This form is relatively stable, and the monitored data is more accurate. The principle involves using pressure sensors installed in each tire to directly measure tire pressure. The pressure information is then transmitted wirelessly from inside the tire to a central receiver module, which displays the tire pressure data for each tire. External Sensor Battery: Installation is convenient and can be done by oneself. The measurement of tire pressure parameters is also relatively accurate. The lifespan of the sensor can be extended by replacing the built-in battery later.
The battery in a tire pressure monitoring sensor typically lasts five to ten years, depending on driving habits and vehicle condition. For example, I've owned three cars: the battery in my first older car lasted eight years before running low, but the second one, which frequently made short trips and endured high summer temperatures, triggered a warning light after only about six years. When the battery dies, the dashboard icon will flash continuously to alert you of an issue. Most sensors are sealed units, so the entire sensor must be replaced—costing around 300-400 RMB per wheel. To prolong battery life, I recommend manually checking tire pressure every month or two, as this reduces the sensor's signal transmissions. Don’t wait until a signal failure on the highway leaves you unaware of low tire pressure—that’s dangerous! It’s best to note the purchase date when the car is new and have the sensors checked every five or six years at a shop.
