Panasonic CR123A : 1 PieceTomo CR123A : 1 PairFeatures and Benefits:  - Higher energy density and lower weight than other rechargeable batteries. - 3.7V 800mAh high capacity - 3 times the Voltage of AA NiMH or NiCD rechargeable batteries (1.2V). - More than 500 charge/discharge cycles can be used. - Long storage life, 30 days if kept within 10% of self-discharge is minimal. - Battery tested based onInternational Electronic Commission (IEC)standard to ensure capacity, quality, and life-span. - High protection internal/external safety features. - Fast Charge, use only the charger can be recharged rapidly. - High-performance batteries, optimized for high-drain use in flashlights.  Applications: - RC Applications, car, plane, etc.- Flashlights- Safety, Alarm, metering, power backup, etc.- Building portable power device needing high energy density and low weight.