Amazon has the 12-Pack Energizer 123 Lithium 3V Photo Batteries (EL123BP12) for $15 - 5% off with Subscribe & Save (can cancel anytime) = $14 with free shipping on $35+ or with Prime. Replaces 5018LC, CR123, CR123A, CR17345 and EL123 batteries. Can last up to 10 years in storage.