Frequently Asked Question ( FAQ): 1. What is the maximum wattage? The maximum peak value of AC110V output is 370W, and the maximum peak value of DC12V output is 120W. With the decrease of power, the output power of AC is reduced to 285W-300W, and the output power of DC is reduced to 90W-120W. 2. How to Calculate the Working Time for Your Device? Working time = 296Wh* loss ratio / product power=296Wh* loss ratio / (battery capacity Ah * working voltage V) For example: 110V AC Working time = 296Wh* 0.85 / product power (without battery) =296Wh* 0.72 / (battery capacity Ah * working voltage V), 1Ah=1000mah 12V DC Working time =296Wh* 0.98 / product power(without battery)=296Wh* 0.96 / (battery capacity Ah * working voltage V), 1Ah=1000mah 5V DC Working time = 296Wh* 0.94 / product power(without battery)=296Wh* 0.92 / (battery capacity Ah * working voltage V), 1Ah=1000mah For reference. assuming power consumption of your device is 40W(without battery), AC/110V working time will be 296wh*0.85/40w=6.29 hrs (rough calculated), DC/12V working time will be 296wh*0.98/40w=7.25 hrs (rough calculated). Assuming a smartphone is equipped with a 3000mah battery and the battery working voltage is 3.7V, AC/110V working time will be 296wh*0.72/(3Ah*3.7V)=19times (rough calculated), DC/5V working time will be 296wh*0.92/(3Ah*3.7V)=24.5times (rough calculated). Please Note: Actualloss ratio varies from different usages. Loss rate comes from normal circuit heat. 3. Suggested Related Solar Panel. We suggest you can choose solar panel which must be equipped with an output head of MC4 and the output voltage range must be between 12V-25V. Please refer to your solar panel device specification before purchase.” 4. Can it power CPAP? If CPAP power is 60W, Working time=AC/110V 4.2 hours or DC/12V 4.8hours. so it is recommended to purchase a larger capacity of energy battery.
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