Q:How to choose a proper battery?

 Answer: Different batteries are suggested to use depending on different FPS. Muzzle velocity 362FPS (110m/s) or above, 11.1V 20C Li-poly battery is recommended. Muzzle velocity below 362FPS (110m/s), 7.4V 20 C Li-poly battery is recommended Please note “ ROF(Rate of Fire) should be lower than 700rds/min. Thanks.