[ZVPT] Universal Portable USB Emergency 2 AA Battery Extender Charger Power Bank Box DSF

Features: --100% brand new and high quality. --Universal Portable USB Emergency 2 AA Battery Extender Charger Power Bank Supply Box For Phone Mobile Phone MP3 MP4 White --This AA Battery Extender has the power you need to keep your Smartphone running during your air travel, camping, road trips or anywhere else you could face the prospect of a dead battery --High power efficent regulated output for Power and Charging your Smartphone --Mechanical safety design protecting your Smartphone from insertion of batteries with reversed polarity LED power indicator --Pocket-sized for easy carrying Technical parameters: -The design is based on two batteries, the most common 5 /AA battery -Built-in protection circuit, when the battery in the charger is exhausted or the device is full of lithium battery, the charger automatically disconnect and stop charging! -Built-in DC-DC boost circuit, conversion efficiency of 88%~ 93% -Input voltage: 2.0-3.0V - Output voltage: 5.0V - Output current: 1000MA Specification: Type:Battery Extender Charger  Material:plastic Size:83*37*22mm Color:white/black Package Contents: 1*Battery Extender Charger