Tenergy batteries offer the best value in the 123 battery market today. Whether you need one-time use 123 batteries, or rechargeable, Tenergy batteries offer exceptional pricing for a quality product. As a reliable supplier to several government agencies and private contractors, Tenergy is capable of supporting your battery needs as well. With their global technology and service center in Silicon Valley, USA and high-volume cost-effective manufacturing in China, Tenergy offers superior turn-key power solutions with NiMH and Li-Ion batteries and the Smart Charger. Each one of our Tenergy batteries comes with the expiration date printed right on the battery, so you always know the freshness of your batteries. Tenergy batteries arrive in our warehouse pre-charged at 3.2V.