Where to Replace Car Key Battery?
2 Answers
When a car key runs out of battery, you can purchase and replace the battery yourself or have it replaced at a repair shop. Below are detailed explanations: 1. Types of car key batteries: (1) CR2016 button battery: The CR2016 button battery is highly popular for car key remotes today and is one of the most commonly used car remote batteries. It has a voltage of 3V. Generally, car key batteries operate on 9V, so all three batteries are replaced at once. (2) CR2025 button battery: The CR2025 button battery is far less commonly used than the CR2016. It is thicker than the 2016 but has a relatively higher storage capacity. (3) 12V alkaline battery: 12V alkaline batteries were mostly used in early car key remotes. They are characterized by their small size, high output voltage, and longer remote control distance. 2. Specific meanings represented by car key battery models: Taking CR2032 as an example, 'CR' stands for lithium battery, '20' represents the battery diameter (20mm), and '32' indicates the battery thickness (3.2mm).
I often change my car key battery at home. Most car keys use a CR2032 coin cell battery, which can be bought at supermarkets or drugstores for just a few dollars. When opening the key, use a thin tool like a credit card or a small knife to gently pry open the clips on the cover, being careful not to break the plastic. When replacing the battery, make sure the positive and negative terminals are aligned correctly, then snap the cover back on—it only takes a few minutes. This method saves time and money while also honing your DIY skills. As a side note, regularly checking the battery life can prevent lock failure; typically, replacing it every one or two years is ideal. If you use the key frequently, inspect the internal buttons for wear when opening it, and perform maintenance in advance to avoid major repairs. In short, DIY battery replacement is a practical skill, especially useful for frequent drivers like me.
