This battery is a lithium battery remote control flying saucer axis 7.4V 850 mAH 20C JST plug
Battery specifications: 703048-2S
battery Dimensions: 50 * 30 * 16 mm
Battery Weight: 48.5 g
Type: Li-polymer
Size: Prismatic
Nominal Capacity: 900mAh
Rated Capacity: 850 (mah)