Micro-scale energy harvesting solutions are highly demanded globally in almost every field.Specifically, when it comes for a cell phone battery life. The imbalanced situation between battery technology and cell phone evolution is getting worse. However the efficient system is needed which is able to charge a cell phone when we are off from the power source.The researchers put forwards the attention towards the readily available energy sources to be harvested for charging purpose.For making such efforts, number of solutions have been proposed but many hurdles lies in it which includes the design, compatibility and most importantly the different parameters of every cell phone device.This paper demonstrates the specifications of different cell phone models and a datasheet is produced which includes the minimum output power requirement during standby and talk time.
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