A CR123A battery is a high-powered lithium battery that’s used in flashlights, cameras, and security systems. They’re also known as CR17345 and DL123A batteries. 

What are they used for?
  • Security systems: CR123A batteries are often used in wireless alarm systems and PIR sensors. They can last up to three years between changes. 
  • Flashlights: CR123A batteries are a good choice for flashlights because of their high voltage and discharge rate. 
  • Cameras: CR123A batteries are used in many point-and-shoot cameras and film SLRs. 
What are their characteristics?
  • Size: CR123A batteries are 34 mm in height and 17 mm in diameter. 
  • Voltage: CR123A batteries have a nominal voltage of 3 V.
  • Capacity: CR123A batteries have a nominal capacity of 1500 mAh or more. 
  • Shelf life: CR123A batteries can have a shelf life of up to 10 years. 
  • Chemistry: CR123A batteries are made of lithium manganese oxide
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