... computer upt Smart battery bank is your PowerMat that can power all brands of laptop computers, Play Station, MP3/MP4 players, mobile ... , 6, 7.5, 9, 12, 14, 16 and 19V. 2. Power output of 45~60W, extending your laptop computer upto 4 ... of portable electronic devices. 6. LED light indicators identify exact power level.7. To be charged by regule charger, car charger ...