CR123A UltraFire 800mAH 3.0V Rechargeable Li-Ion Battery (2 Batteries) + Universal Battery Charger Combo - Dual slot Ultra-portable Li-Ion rechargeable & Ni-Mh battery charger Direct replacement for CR123A Can be charged over 500 times Can also charge 1.2V MH-Ni battery, such as D, C, AA, AAA 2 CR123A 16340 Li-Ion Rechargeable batteries