Are 2025 and 2032 car key batteries interchangeable?
2 Answers
They are not interchangeable. Here are the details about different battery models: 1. Reason for incompatibility: They differ in thickness and the amount of active material filled, meaning their capacities vary. This may lead to poor contact, failure to supply power, or even the possibility of a dead battery. 2. Differences: Common battery codes for car keys include 2032, 2025, 2016, 1632, 1620, and 1616. You only need to purchase the battery with the corresponding code to replace the key battery. Among them, the CR2016 coin-type battery is the most common. These batteries have a voltage of 3V, while car key batteries generally use 9V power supply. The battery diameter is 20mm, and the thickness is 1.6mm. When replacing batteries, it is common to replace three batteries together. Earlier models used alkaline 12V batteries, which have the advantage of small size and sufficiently high output voltage.
To be honest, I know a thing or two about car key batteries. The 2025 and 2032 may look similar in name, but they aren't very interchangeable. Both batteries have a diameter of 20mm and a voltage of 3V, but the 2025 is only 2.5mm thick, while the 2032 is nearly 1mm thicker at 3.2mm. If you try to force a 2032 into a key slot designed for a 2025, it might not stay in place or could damage the internal circuitry. On the other hand, using a 2025 to replace a 2032 might fit in terms of thickness, but its much smaller capacity means it will run out of power quickly. I recommend not cutting corners when replacing the battery—check the model number in your key's manual or measure the battery slot depth directly to avoid inconveniences. These batteries may be cheap, but using the wrong one can waste money. It's better to buy the correct one for peace of mind, so your key doesn't fail at a critical moment.
