The Tenergy CR123A 3V non-rechargeable lithium battery is one of the most popular CR123A lithium batteries on the market. They are popularly used to power consumer devices like flashlights, cameras, and many other devices. Tenergy CR123A delivers longer run times due to its unique high capacity and reliability. Various application tests show Tenergy CR123A batteries deliver comparable performance as other top brand Lithium batteries, but at only a fraction of the cost.