J-Plus 10,400mAh 2.1A Dual USB Portable Power Bank External Backup Charger for iPhone, iPad, Samsung, LG, Nexus, Galaxy, Smartphones, and Tablets (JPU201) Charge the Power Bank at your computer or with any standard USB wall charger using the included Micro USB to USB cable Provides one 1A port for charging small devices like smartphones or Bluetooth headsets, and one 2.1A port for charging larger devices such as an iPad or other tablet. Advanced circuitry prevents your device from overcharging LED power indicator flashes when Power Bank is receiving charge. Charge an iPhone up to 5 times, fully charge an iPad