Page 142 - rise 2017
P. 142

Figure 5: shows the time taken to charge the power bank using two method



























                                Figure 6: Different time taken using 2 methods

             According to the Fig.7, the time taken to jump start a car based on the level of power bank.  When the
             power bank level at 100%, time taken to jump start a car just 1.4s. When power bank level at 80%, the
             time taken is 2.76s.  But when the power bank level fell to 40%, jump start a car takes a little more
             time  around  50.8s.  This  is  because  the  power  banks  have  suffered  relatively  less  power  to  supply
             power to the car battery.  The car battery over discharge will occur when the power bank level fell to
             20%. Therefore users should always ensure that power banks level have to 50% power to jump start a
             car.
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