What Is the Difference Between CR2025 and CR2032 Key Fob Batteries?

Learn the key differences between CR2025 and CR2032 key fob batteries including size, thickness, and battery life for proper device fit.

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The main difference between CR2025 and CR2032 key fobs lies in their size; specifically, their thickness. Both batteries are 20mm in diameter, but the CR2025 is 2.5mm thick, while the CR2032 is 3.2mm thick. This slight variation in thickness can affect how they fit in devices, with the CR2032 generally offering a longer life due to its larger capacity. When replacing your key fob battery, it's crucial to use the correct size to ensure proper functionality.

FAQs & Answers

  1. Can I use a CR2032 battery instead of a CR2025? While both batteries have the same diameter, the CR2032 is thicker and may not fit properly in devices designed for CR2025, potentially causing malfunction.
  2. What does the number 2025 and 2032 mean in the battery names? The first two digits represent the battery's diameter in millimeters (20mm), and the last two digits represent the thickness; 25 means 2.5mm and 32 means 3.2mm.
  3. Which battery lasts longer, CR2025 or CR2032? The CR2032 generally lasts longer because it has a larger capacity due to its greater thickness.

Watch More

For more useful information on replacing and maintaining your key fob batteries, check out our related guides on how to safely replace CR2032 batteries and tips for extending battery life in small electronic devices.

  1. Can You Use a 2025 Battery Instead of a 2032 in a Key Fob? Learn why a 2025 battery cannot replace a 2032 in your key fob and the risks of using the wrong battery size.
  2. Can You Use a CR2032 Battery Instead of a CR2030? Key Differences Explained Learn why CR2032 and CR2030 batteries are not interchangeable and understand the importance of choosing the correct battery thickness for your device.