I was not satisfied with my initial purchase of this battery. It would not power my devices for very long and would lose power while idle. I returned the battery and left a review here with the problems I experienced. After returning the battery and getting a refund K&F Customer Service contacted me and offered to send me a new battery free of charge and less than a week later I received a new battery. This battery powers my devices, holds charge and performs flawlessly. For whatever reason sometimes a new product may not perform up to expectations. It can happen with any manufacturer.
The difference here is that K&F stood behind their product and reputation and offered outstanding Customer Service. Not every company would go to the lengths they did to satisfy a customer and it is most appreciated. As I stated in my first review I own a lot of K&F products and they have always provided high quality at reasonable prices and I will continue to purchase their products.
As for the battery I would not hesitate to purchase another one. I really like the lightweight design and feel of this battery and when in use it can power my camera and monitor for hours while providing a little extra heft to my rig for stability. My only wish is to make the front face in a matte finish to avoid all the fingerprint smudges but that's a minor issue. Thank You K&F!