SYMA F3 toy Parts Battery [rctoy357-parts-6355] - $9.99 : RCToy357! , RC toys online store.
New version]SYMA S39 RC Helicopter Spare Parts: Battery 3.7V 300mAh [syma-s39-parts-01-110] - $12.99 : linparts, Welcome! Here are the most complete RC helicopter and spare parts