What is the battery model for Mazda CX5 key?
2 Answers
The battery model for Mazda CX5 key is CR2025. Classification of car key battery models: Car remote keys use button batteries, mainly including CR2016, CR2025, and CR2032. Button-type CR2016 battery: The battery voltage is 3V. CR2016 specifications: battery diameter is 20mm, thickness is 1.6mm. Button-type CR2025 battery: Thicker than CR2016 but with relatively higher power storage. CR2025 specifications: battery diameter is 20mm, thickness is 2.5mm. CR2032 lithium-manganese battery: It has a lithium-manganese dioxide structure, with chemically stable manganese dioxide as the positive electrode and metallic lithium as the negative electrode. It is shaped like a button, hence called a button lithium battery or lithium-manganese button battery. Car key battery replacement: Prepare the original battery for the car key, ensuring the same voltage and model; remove the mechanical key; use a small flat-head screwdriver to pry open the car key—there is a small gap in the middle of the key, and it can be gently twisted to open; pry out the old battery, install the new battery, and reassemble the car key after installation.
As a Mazda CX-5 owner, my key fob uses a CR2025 battery, which is a common coin cell battery with 3V voltage and fits perfectly in the key casing. I remember when my key first stopped responding, it was simply due to a dead battery – a quick trip to the supermarket for a replacement fixed it. When replacing, carefully pry open the key's back cover, avoiding hard tools that might damage the plastic clips. Remove the old battery and insert the new one with the positive side facing up. If unsure about the model, check the numeric label on the old battery. I recommend checking it every two years, especially in winter when batteries drain faster. If you notice the remote's range decreasing, replace it promptly to avoid awkward situations. CR2025 batteries are cheap online, just a few yuan each, and replacing them takes only minutes – but always test the remote buttons to ensure they work properly.
