Includes 4 pack rechargeable C size batteries and T9688 charger. NiMH C size battery can be recharged up to 1000 times and between 1-10 charges will have paid for themselves. Switch over. Save. Reuse. Recharge with Tenergy's rechargeable C size batteries and charger bundle. Rechargeable C size battery is compatible with household devices such as LED flashlight, LED candle, emergency lantern, portable radio, cassette recorder, solar lights, baby toys, baby equipment, megaphone speaker, and much more. Intelligent battery charger streamlines usability by providing automatic charging current for a variety of different sized batteries. (*Note: Charger is NOT compatible with flat top batteries) Charger includes Tenergy 12 months warranty policy and has a built-in USB port (output: 5V DC 500mA) on the back side of the charger can also power portable electronic devices. Tenergy's rechargeable C size batteries and T9688 LCD Smart Battery Charger bundle is ideal for everyday electronics such as LED flashlights, LED candles, emergency lanterns, portable radios, cassette recorders, solar lights, baby toys, baby equipments, megaphone speakers, and more. Bundle includes everything needed to power electronics that use C size batteries.