Panasonic/LG high density battery cell‎.‎ Fast charging with dual USB output port 20000 mAh large capacity enables charge for iphone 6 7 times and ipad mini 3 times and macBook 1.2 Times once fully charged‎.‎ Compatible with mainstream fast charging and 5v/2a‎,‎9v/2a‎,‎12v/1.5A input‎.‎ Just cost 3 hours to store 11000mAH power‎.‎ 5.1V/3.6A dual USB output‎,‎ charging for macBook is feasible‎.‎ The power band can smart adjust the output power automatically‎,‎ which can provide fast charging for two devices at the same time‎.‎ Good quality circuit protection chips from texas instruments provide 9 protections‎.‎ Environment‎-friendly material with the convex design surface‎,‎ which is anti‎-slip and anti‎-scratch‎.‎ 318 Mm flat charging cable made of the good quality soft rubber material‎,‎ which can avoid the twine trouble‎.‎ Every pieces of Xiaomi portable power‎-bank is bestowed 9 protections ‎.‎Temperature protection short circuit protection reset protection input over voltage protection enter anti‎-reverse protection‎.‎