It is a newly-designed universal charger, which applies hi-technology to charge Lithium battery. Its charging mode adopts the standard of CC ( constant current ) and CV ( constant voltage ). The battery power after being charged is durable enough to use for a long time. This charging mode finally settles the perennial problem of unsaturated power charged by other traditional charging mode; and can identify battery polarity automatically. Its high current 500 MA charging power is safe, fast, reliable and easily operating.  It is an idea charger of Lithium battery used at home or traveling.