CR2025 vs CR2032: Which Batteries Should We Use

If you’re still confused about CR2025 vs CR2032 battery, which one is better for your purpose, then you should read this article below. I’m going to give you a further details of these two types of batteries. Ok, let’s get started.

cr2025 vs cr2032

The Overview

These batteries are called watch battery or button cell, small single cell battery shaped as a squat cylinder typically 5 to 25 mm. We often see this kind of battery in small electrical devices likes wrist watches, hearing aids, and pocket calculators…

At the first look, these two batteries seems to be the same with small size, rounded shape and shinny silver color. The only thing that help us to recognize the type of them is the notation on theirs surface. But they are different, let’s have a look at theirs specs.

CR2025
  • Type: Coin
  • Chemical System: Lithium / Manganese Dioxide
  • Diameter: 20mm
  • Thickness: 2.5mm
  • Nominal Voltage: 3.0 Volts
  • Typical Capacity: 170 mAh
  • Typical Weight: 2.6 grams
  • Operating Temp: -30C to 60C
  • Self Discharge: ~1% / year

CR2032
  • Type: Coin
  • Chemical System: Lithium / Manganese Dioxide
  • Diameter: 20mm
  • Thickness: 3.2mm
  • Nominal Voltage: 3.0 Volts
  • Typical Capacity: 235 mAh
  • Typical Weight: 3.0 grams
  • Operating Temp: -30C to 60C
  • Self Discharge: ~1% / year

The Similarities

As you can see CR2025 and CR2032 have a lot in common. Both of them are 3V button cells, the same diameter and assuming they fit in the case, they are interchangeable.

There are a lot of companies provide these types of batteries. Some of them are Duracell, Panasonic, Philips and my most favorite one Energizer. Energizer has a mAh of 163. It will hold its charge for up to 8 years on storage. A pack of 5 is good value for money for a recognized brand. The other brands are also good with high quality and trusted.

CR2025 vs CR2032: The Differences

The only thing that make CR2025 vs CR2032 different is the thickness. The CR2025 is 2.5mm thick while CR2032 is 3.2mm. This spec lead to the different of weight (2.6 grams vs 3.0 grams) and capacity (170 mAh vs 235 mAh).

Only a small difference in thickness can make a huge difference in power storage. So if you want something that can last much longer, just go for CR2032.

CR2025 vs CR2032: The Winner

Although CR2032 seems to be reasonable because of its capacity but which battery you should choose is depend on your purpose, how often do you use and your budget. And one more important thing you should consider is your device’s battery storage space. If it doesn’t fit, smaller or bigger, it won’t work.

For children’s toys and pocket calculators, CR2025 maybe better. But for wrist watches, heart monitor scans, and hearing aids, CR2032 may take place.

Final Verdict

So your decision will be made of the capacity of those batteries. But since the size and the thickness of them are very small so you must be very careful because your kids or your pets may swallow or you need to spend tons of time to find them when they are lost.

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