110V-240V wide voltage design, you don't need to worry about voltage stability and flexibly use in countries with different voltage standard<br>You can expect a 2.0Ah battery to charge in 1H, a 4.0Ah battery to charge in 2H<br>A LED indicator helps you know the battery status conveniently. Green flash, battery in charging. Always Green, battery fully charged. Red flash, battery overheating. Always Red, battery broken<br>No memory effect so batteries can be charged before they are fully discharged<br>Battery protection design protects the battery from damages due to over discharge, high temperature or overload<br>The trickle charging technology makes it possible for Ingco lithium-ion battery to be reactivated from over discharge<br>