RAVPower Solar Charger 21W Solar Panel with Dual USB Port Waterproof Foldable Camping Travel Charger Compatible iPhone XS Max Xr X 8 7 Plus, iPad, Galaxy S9 S8 Edge Plus, Note, LG, Nexus and More

"Note:1.It?s not advised to charge power banks, which will lead to low conversion and low charging speed.2.You should try to use only one USB port to charge device when it?s slow to charge or doesn?t work with multiple charging port3. Please do place the solar panel in direct sunlight to get the most efficient energy conversations. 4. Please do not place solar panels behind Windows. This may si...