Qsmily&reg; 7.4V 1500mAh 25C Li-po Battery Spare Parts for HUAJUN HJ817 W609-8 HJ816 W609-7 RC Quadcopter Suit for: HUAJUN HJ817 W609-8 HJ816 W609-7 rc quadcopter. Original factory parts, 100% new. High charging efficiency, long service life. Capacity: 7.4V 1500mAh. Size: 68*34*18.5mm