When it comes to powering our devices, batteries play a crucial role. But did you know that not all batteries are created equal? In fact, there are several different types of batteries, each with its own unique characteristics and uses. Let's explore the world of batteries and learn more about the different types available.
Battery Sizes
From smoke alarm and smoke sensing camera, batteries are utilized in various settings. Despite having a common function of supplying instant, portable power, a diverse range of battery sizes enables us to select the most suitable one for a specific situation.
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AA Batteries An AA battery is a standard size of dry cell battery commonly used in portable electronic devices. It is cylindrical in shape and typically measures about 50.5 mm in length and 14.5 mm in diameter. AA batteries are known for their versatility and are used in a wide range of devices due to their convenient size and power output. Versatile and widely used with moderate capacity and cost. Available in rechargeable variants and suitable for a wide range of devices. |
9V Batteries9V batteries are ideal for devices like infrared thermometers, battery powered temperature alarms, and electronic portion scales. These products face extreme temperatures from food, walk-in coolers, or kitchen equipment. 9V batteries are durable with outstanding performance in 0 to 130 degrees Fahrenheit (source). Higher voltage suitable for specific applications like smoke detectors and alarm systems, but with lower capacity and energy density. |
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CR123A BatteriesCommonly referred to simply as 123 batteries, are high power lithium based batteries used extensively in security alarm systems. Due to their high capacity and long life, they are the choice of PIR sensor manufacturers in wireless alarm system. In this application, a CR123A battery can last for up to 3 years between changes(source). High energy density and long shelf life, making them ideal for high-drain devices and professional equipment. Higher cost but excellent performance in extreme temperatures. |
AA Batteries | 9V Batteries | CR123A Batteries | |
Size | Standard cylindrical, 14.5mm x 50.5mm | Rectangular, 26.5mm x 17.5mm x 48.5mm | Cylindrical, 17mm x 34.5mm |
Voltage | 1.5V (single cell) | 9V | 3V |
Capacity | 2000-3000 mAh (Alkaline) | 400-600 mAh (Alkaline) | 1500-2000 mAh (Lithium) |
Energy Density | Moderate | Low | High |
Common Uses | Remote controls, flashlights, toys, clocks | Smoke detectors, transistor radios, alarms | Cameras, high-drain devices, flashlights |
Shelf Life | 5-10 years (Alkaline) | 3-5 years (Alkaline) | 10 years (Lithium) |
Temperature Range | Moderate (-20°C to 54°C for Alkaline) | Moderate (-20°C to 54°C for Alkaline) | Wide (-40°C to 60°C for Lithium) |
Cost | Low | Moderate | High |
Rechargeability | Available in NiMH and Lithium rechargeable | Available, but less common | Limited availability, but rechargeable types exist |
Environmental Impact | Alkaline can be recycled; low impact (Lithium) | Alkaline can be recycled | Lithium can be recycled; higher impact due to chemicals |
Battery Types
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Lithium BatteriesLithium batteries are a type of rechargeable battery that have become increasingly popular due to their high energy density and long lifespan. These batteries are commonly used in a wide range of electronic devices, from smartphones and laptops to electric vehicles and power tools. Advantages: |
Alkaline BatteriesAlkaline batteries are composed of zinc and manganese dioxide. The zinc serves as the anode, while the manganese dioxide acts as the cathode. The electrolyte used in alkaline batteries is potassium hydroxide. Advantages: |
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Zinc Air BatteriesZinc air batteries are a type of electrochemical cell that use zinc as the anode and oxygen from the air as the cathode. These batteries have gained popularity in recent years due to their high energy density and long shelf life. Advantages: |
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