About this item Attention: Only for SYMA X5SW X5SC X5SC-1 RC Quadcopter Length:54mm/ /width: 29mm /thickness: 9mm/Weight:27.4 Batteries come equipped with built-in protection mechanism for safe charging and use. Battery connector is exactly same shape with the original battery ,no loose problems Package Content: 5Pcs 3.7V 1200mah Upgrade Li-polymer Battery and 1pcs 5in1 Batteries Charger