Noiposi 5pcs 3.7V 750mAh 25C Lipo Battery with X6 Charger for MJX X400 X400W Holy Stone X300C X400C X800 HS110 HS200 HS110 HS200 HS120 HS130 Syma X56W Sky Viper S670 V950hd s1750 Product Name:3.7v 750mah 25C (JST Plug) Lipo Battery With X6 Charger Product size:40mm*25mm*9.5mm/1.57in*0.98in*0.37in Stop charging automatically when batteries energy full,can be used for Lithium batteires 3.7v Charging 5 batteries at one time,Over charge protection, Short circuit protection Compatible for:Syma X56W National Geographic Quadcopter MJX X200 X300 X300C X400 X500 X800 Sky Viper S670 V950Can't work for 2400HD RC Quadcopter Notice that the lights of charger will be off while the batteries are charged fully.Therefore,its lights of charger won't bright while the batteries are full