CR2025 vs CR2032: Complete Battery Comparison
Discover the key differences between CR2025 and CR2032 coin cell batteries. Learn which battery is right for your device with our comprehensive comparison guide.
CR20XX
Coin Cells
Discover the key differences between CR2025 and CR2032 coin cell batteries. Learn which battery is right for your device with our comprehensive comparison guide.
At first glance, CR2025 and CR2032 batteries look very similar, but there are important differences
Thinner profile, lower capacity
Thicker profile, higher capacity
Understanding the critical differences will help you choose the right battery for your device
The main difference is thickness: CR2025 is 2.5mm thick while CR2032 is 3.2mm thick. Both have the same 20mm diameter.
CR2032 has 40-50% more capacity (220-240mAh) compared to CR2025 (150-170mAh), providing longer runtime.
Device battery compartments are designed for specific thicknesses. Using the wrong battery may cause poor contact or damage.
CR2032 batteries typically cost slightly more due to higher capacity, but offer better value per mAh of energy.
CR2032 is more widely available in stores due to higher demand, while CR2025 may require specialty battery retailers.
Both batteries have similar voltage and discharge characteristics, but CR2032 lasts longer due to higher capacity.
Side-by-side comparison of all technical specifications
| Specification | CR2025 | CR2032 | Winner |
|---|---|---|---|
| Diameter | 20mm | 20mm | Tie |
| Thickness | 2.5mm | 3.2mm | CR2025 (Thinner) |
| Capacity | 150-170mAh | 220-240mAh | CR2032 |
| Voltage | 3V | 3V | Tie |
| Weight | 2.5g | 3.1g | CR2025 (Lighter) |
| Operating Temperature | -20°C to +60°C | -20°C to +60°C | Tie |
| Shelf Life | 10 years | 10 years | Tie |
| Typical Runtime | Shorter | 40-50% Longer | CR2032 |
| Availability | Limited | Widely Available | CR2032 |
| Cost per mAh | Higher | Lower | CR2032 |
Different devices are designed for specific battery thicknesses
Understanding when substitution is possible and when it's not recommended
The thicker CR2032 (3.2mm) will not fit properly in a CR2025 slot (2.5mm). It may:
The thinner CR2025 might fit in a CR2032 slot, but:
Always use the exact battery type specified by your device manufacturer. Check your device manual or the existing battery for the correct model number. Using the wrong battery can void warranties and potentially damage your device.
Follow these steps to ensure you select the correct battery for your device
Look for the battery specification in your device's user manual or documentation
Remove the old battery and check the model number printed on its surface
If unsure, measure the depth of the battery compartment with calipers
Buy the exact battery type specified to ensure optimal performance and safety
The capacity difference between CR2025 and CR2032 significantly impacts device runtime
Important factors to consider when purchasing coin cell batteries
Choose reputable brands with consistent quality control and proper certifications
Look for batteries with safety vents and leak-resistant construction
Check expiration dates and buy from suppliers with good inventory turnover
Common questions about CR2025 and CR2032 batteries
"CR" indicates the battery chemistry - Lithium Manganese Dioxide. The numbers represent the dimensions: 20mm diameter and 25mm or 32mm thickness (in tenths of millimeters).
Both have a 10-year shelf life when stored properly. In use, CR2032 typically lasts 40-50% longer than CR2025 due to higher capacity, but actual runtime depends on device power consumption.
No, CR2032 is thicker (3.2mm vs 2.5mm) and will not fit properly in a CR2025 battery compartment. This can cause poor contact or damage to your device.
No, both CR2025 and CR2032 are primary (non-rechargeable) lithium batteries. Attempting to recharge them can be dangerous and may cause leakage or explosion.
CR2032 typically offers better value per mAh of capacity. While it costs slightly more than CR2025, you get 40-50% more capacity, resulting in lower cost per unit of energy.
Our battery experts can help you select the perfect CR2025 or CR2032 battery for your specific device. Get professional advice and premium quality batteries.