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What are the commonly used coin cell batteries for car remote controls and are they interchangeable?
Common coin cell batteries for cars
The common coin cell battery models for cars mainly include CR2032, CR2025, CR2016 and CR1632. These batteries are widely used in small electronic devices such as car remote control keys, tire pressure monitors, in-car sensors, etc. Although they are consistent in voltage, there are significant differences in size, capacity, and purpose.
1. CR2032
Size: 20 mm in diameter and 3.2 mm in height.
Voltage: 3V
Capacity: 220-240 mAh
Purpose: CR2032 is one of the most common car key remote batteries. Due to its large capacity, it can power devices for a long time, reducing the trouble of frequent battery replacement. It is suitable for those devices that require more power supply, such as advanced smart keys.
2. CR2025
Size: 20 mm in diameter and 2.5 mm in height.
Voltage: 3V
Capacity: 150-170 mAh
Purpose: The CR2025 is the same size as the CR2032, but is slightly thinner and has a lower capacity. It is often used for devices that require less power, such as simpler car key fobs. It is better suited to space-constrained devices than the CR2032, but has a shorter battery life.
3. CR2016
Dimensions: 20 mm diameter, 1.6 mm height.
Voltage: 3V
Capacity: 90 mAh
Purpose: The CR2016 is one of the thinnest button cells, and is suitable for very small, lightweight devices, such as thin car key fobs or older key cards. Due to its lowest capacity, it also provides the shortest power supply time, making it more suitable for devices that are used occasionally.
4. CR1632
Dimensions: 16 mm diameter, 3.2 mm height.
Voltage: 3V
Capacity: 120 mAh
Purpose: The smaller diameter of the CR1632 makes it suitable for certain small electronic devices, such as tire pressure monitors. This battery balances size and capacity, suitable for devices that require a medium power supply.
Summary
All four coin cell batteries feature a 3V output voltage, but there are differences in size and capacity. The CR2032 is suitable for devices that need to be powered for a long time due to its high capacity, the CR2025 and CR1632 provide different balance options in size and capacity, suitable for devices with limited space but still need a stable power supply, and the CR2016 is best for those devices with minimal power requirements. These differences allow different button batteries to be used in various automotive electronic devices, ensuring that each device can get the best battery support.