CR2025 vs CR2016 – Which Coin Battery Should You Choose?

When it comes to small electronic devices like remote controls, watches, and medical tools, CR2025 and CR2016 coin cell batteries are two common options that are often confused. Let’s break down their differences so you can choose the right one for your needs.

🔋 What They Have in Common:

• Both are 3V lithium batteries.

• Same diameter: 20mm.

• Non-rechargeable, single-use batteries.

⚖️ Key Differences:

🔄 Are They Interchangeable?

They can be, if your device’s battery compartment has enough space:

• CR2025 may not fit snugly in a slot designed for CR2016.

• CR2016 may be loose in a slot meant for CR2025, causing poor contact or shorter run time.

✅ Which One Should You Use?

• CR2025: Ideal for higher-power devices or those that need longer battery life — such as digital watches, key fobs, or fitness trackers.

• CR2016: Best for slim, low-power devices — like remote controls, motherboards (CMOS), and small wristwatches.