Best Ultralast UL-123/2 3V CR123 Photo Lithium Battery Retail Pack and Read Consumer Reviews
Primary Lithium 3V CR123 Batteries
review is from: Ultralast UL-123/2 3V CR123 Photo Lithium Battery Retail Pack (Electronics)
I bought the Ultralast 2-pack as a filler item. Out of the box, one cell measured 100% on my ZTS tester and the other one measured 80%. Not acceptable, AND hazardous to use in 2-cell lights (the weaker battery can burst and start a fire).
Price: $4.15
This 3V button cell battery from UltraLast makes a great replacement battery for watches, fitness devices, glucose meters, and all kinds of other small electronics. Lithium batteries are well-suited for long-life, low-voltage applications.