Flowtoys original battery ! Cool flowtoys logo is on the battery. Very cheap but good quality. If you have 4 of them, you can play flow poi all night long.

The best rechargeable battery in the world! You'll be surprised how long it last!!

If you take a video with Kiss X3, battery doesn't last long as taking photos. You need to have extra batteries. Rowa has cheap but good enough quality batteries. it is not good as canon's battery, but well enough as this price.