10 induces electricity for charging to the batteries 32 after charging the batteries 32 are full of power no matter the container 10 is occupied on the charging cup holder 100 or being kept a distance from the charging cup holder 100 the leds 4 illuminate red light as shown in fig4 the container 10 includes a lining 11 a casing 12 for receiving the lining 11 a ring 13 fit between the upper rims of the lining and casing an elastomer 14 disposed below the underside of the lining 11 a pcb 2 disposed in the bottom surface of the casing 12 with a set of magnetic charger 3 leds 4 and pressure sensitive switch 5 mounted on the pcb 2 after combination an assembly view and a cross section view are illustrated as shown in fig5 and 6 the hollowed lining 11 is made of material pervious to light on the top rim of the lining is formed as a step ring 111 the hollowed casing 12 is also made of material pervious to light because the inner diameter of the casing 12 is greater than the outer diameter of the lining 11 therefore the lining 11 can slide into the cavity of the casing 12 the ring 13 is fixed to the top.