... 3.CE, FCC, ROHS,PS 54000mah or 20000mah power bank for laptop, iPad, iPhone, mobile phones, MP4A. Specifcation:Battery capacity: ... USBcapacity indicator light: 4pcsoutput port: 2 (USB port is 1 of them)B. Application:can charge for laptop.phone.camera.ipad,iphone, ... ROHSOversized power supply; storage capacity is two times than notebook computer. streamline design, small size, and light weight, easy ...