Where to Replace a Dead Car Key Battery?

1 Answers
LaCora
07/29/25 12:53pm
You can replace a dead car key battery at a 4S dealership. Below are detailed specifications of car key battery models: 1. CR2016 battery: This is highly common in car key remotes. With a voltage of 3V, most car key batteries operate on 9V power, requiring replacement of all three batteries each time. Models like Honda, Toyota, Volkswagen, Mazda, etc., use this type. The CR2016 measures 20mm in diameter and 1.6mm in thickness. 2. CR2025 battery: Far less common than CR2016. It's thicker than the 2016 but offers higher energy storage. The CR2025 measures 20mm in diameter and 2.5mm in thickness, mostly found in audio system remotes. 3. CR2032 battery: Also with a 3V voltage, its capacity reaches about 200mAh, making it twice as thick as the CR2016.
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