CR123A, 16340, and 18650 Battery Best Buyers Guide

16340 rechargeable battery

You may be surprised by what you find inside your flashlight when it is time to replace the batteries. Chances are, you won’t pull out the well-known 1.5 volt AA, AAA, or D cell batteries. Instead, you will likely find a short, thick battery labeled 123, CR123, or CR123A. I hope to clear up the…

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