The present invention discloses an protective case, for electronic devices viz. mobiles, laptops, tablet, GPS, pulse, hand held gaming device and i-watch, which is comprised of a cooling fan(s) and air holes, solar panels, red, yellow, and green light indicators, a USB port, a switch enabled with 3 modes, crank, and a kink stand. A protective case involves various attractive designs and that contains the back-up battery. Therefore, the case provides the both primary source and secondary source of power. This case provides the prolonged usage of the battery, and also reduces the over-heating of the battery.