RAWireless Charging Receiver Wireless Charger Charging Receiver for Samsung Galaxy S4 i9500 i9505; Qi Standard Wireless Charging Receiver Ultrathin design, compact and lightweight without increasing additional weight of the S4 The receiver can be attached to the the battery all the time, and it would not interrupt the normal use of the S4 Compatible with any Qi standard charging pad include RAVPower RP-WCN7,RP-WCN11,Orbit RP-WCN12,RP-WCN11 or others High efficient rapid wireless charge