🔋 CR2032 Battery
The CR2032 is a widely used lithium coin cell battery known for its higher capacity compared to thinner coin cells. It provides a stable 3V output and is ideal for devices that require longer-lasting power in a compact size.
Common applications include:
Car key fobs and remote controls
Computer motherboards (CMOS/BIOS battery)
Watches and calculators
Fitness trackers and medical devices
Small electronic gadgets and toys
⚙️ CR2032 Battery
Battery Type: Lithium coin cell
IEC Name: CR2032
Nominal Voltage: 3 volts
Typical Capacity: ~210–240 mAh
Diameter: 20 mm
Thickness: 3.2 mm
Chemistry: Lithium manganese dioxide (Li-MnO₂)
Weight: ~3.0 grams
Operating Temperature: -20°C to +60°C
Shelf Life: Up to 5–10 years
Rechargeable: No (primary battery)
🧠 Naming Breakdown
CR = Lithium manganese dioxide chemistry
20 = 20 mm diameter
32 = 3.2 mm thickness
✅ Key Features
Higher capacity than thinner coin cells (like CR2016)
Stable 3V output throughout most of its life
Low self-discharge rate
Compact but longer-lasting power source
⚠️ Important Notes
Not rechargeable—attempting to recharge may cause leakage or explosion
Keep away from children (coin batteries are a swallowing hazard)
Dispose of properly according to local regulations