Understanding CR2032 and CR2025 Batteries

At a glance, CR2032 and CR2025 batteries might look similar, but their slight differences can have a considerable impact on the functionality of your car remote. Both are 3-volt lithium coin cells, renowned for their long shelf life and reliability. The distinction lies in their dimensions: the first two digits after 'CR' represent the diameter in millimeters, and the last two digits denote the thickness in tenths of millimeters. Therefore, a CR2032 battery  is 20mm in diameter and 3.2mm thick, while a CR2025 is 20mm in diameter but slightly thinner at 2.5mm thickness.

Performance and Compatibility

In terms of performance, the thicker CR2032 generally boasts a higher capacity (mAh), which translates to a longer lifespan compared to the CR2025. This means if your car remote is designed to accommodate both, choosing the CR2032 could mean fewer battery replacements over time.

However, compatibility is crucial. It's always best to consult your vehicle's owner manual or the original battery specification to ensure you're selecting the correct battery. Using a battery that's too thick for the designated space might result in difficulties with the remote control fitting or closing properly.

Replacing Your Car Remote Battery

The process of replacing the battery in your car remote is usually straightforward. Here's a general guide, though specific steps can vary based on the make and model of your vehicle:

1. **Identify the Correct Battery Type**: Refer to your car’s manual or the existing battery to determine if it's a CR2032, CR2025, or another model.

2. **Access the Battery Compartment**: This often involves using a flat tool like a screwdriver to pry open the remote. Some remotes might have a small screw or a tab that needs to be slid open.

3. **Replace the Battery**: Remove the old battery, taking note of its orientation. Insert the new battery ensuring the positive (+) side is facing the correct direction.

4. **Close the Remote**: Snap the two halves of the remote back together or replace any screws or tabs you removed.

Where to Buy

CR2032 and CR2025 batteries are available at most electronics stores, online marketplaces, or specialty battery stores. For the best quality and assurance, it's recommended to purchase from well-known brands and reputable retailers.