Dantona® Industries, maker of Ultralast®-branded batteries, is one of the nation’s premier replacement battery suppliers. In fact, the company literally pioneered the replacement battery business in the 1990s, even before replacement batteries were commercialized. So, if you use a lot of CR123 batteries, this ULCR123RK Smart Charger with 2 Rechargeable CR123 Batteries from Ultralast® provides a handy solution. It can recharge 2 CR123 rechargeable batteries at the same time, plus comes with 2 CR123s to get you started off right!