DOKIO Solar Suitcase 100W Portable Foldable Solar Panel 18v Monocrystalline 23.8 * 19.3 * 1.3in featuring Controller to Charge 12 Volts Batteries

WORKS RIGHT OUT OF THE BOX: --Unfold panel, just hook the alligator clips to the battery and it starts charging.The only thing you have to watch out for is the polarity on the battery when connecting the clips. CONVENIENT TO CARRY + CABLE LENGTH UP TO 9.8FT!: -- The 9.8FT meters cable allow solar panel to follow the sun without worrying about power station over heating.with rubber handle, suited to hiking, camping,caravan, RV, boat. --You could adjust the angle of the solar panel at will to obtain a higher output power.The solar panel has the charging efficiency at a 90-degree angle to the sunlight.