Here are some key details about 9V batteries:
- Voltage: Provides a constant 9 volts of power (until depleted).
- Shape: Rectangular prism with rounded edges and a snapped connector on top. Size varies slightly but typically measures around 46.4mm high, 25.0mm long, and 15.0mm wide.
- Chemistry: Available in various chemistries, most commonly alkaline and lithium. Alkaline batteries offer a good balance of performance and cost, while lithium batteries last longer but are more expensive.
- Applications: Powers a wide range of electronic devices that require a higher voltage than standard AA, AAA, C, or D batteries. Some common uses include:
- Smoke detectors
- Carbon monoxide detectors
- Remote controls
- Guitar effects pedals
- Wireless microphones
- Toys
- Medical devices
Additional notes:
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- 9V batteries are not rechargeable. Once depleted, they need to be replaced with a new battery.
- It’s important to dispose of used 9V batteries responsibly at designated electronics recycling centers to avoid environmental hazards.
- Newer technologies are slowly replacing the need for 9V batteries in some devices. However, they remain a widely used and essential power source for many electronics.
