iFlight FULLSEND 1300mAh 120C 14.8V 4S Lipo Battery - XT60H for FPV Racing Drone Quadcopter

It's just a good product. I have 5 of them and they all work well. Two of them have lived through a hard drone crash, I bent the heck out of them, they survived and are still working. I plan on purchasing more.

Great product

Using this on a 5" freestyle drone. I couldn't believe how good this battery performed. Especially for the price. This battery outperforms every other battery I have for this drone, and some of those batteries were double the price of the Fullsend. Very little voltage sag and motors rev up higher and faster.

Even though the 5 incher I am using these on is a 6s setup, this 4s Fullsend runs on it no Problem.