Coolis 150Wh Portable Solar Power Inverter Generator, with Silent 110V AC *2 / 12V DC *3 / USB *2 Output, 40800mAh Lithium Polymer Battery

 
Listed Price: $143.99

CALCULATE THE WORKING TIME FOR YOUR DEVICE: Working time=151Wh*0.8(consider power loss)/Your device power, For example, Your device power is 60 watt. Then the working time= 151wh*0.8/60w=2.0 hrs SUGGE… Read more…