lp-e6

Hi All, I am hoping get a LED panel or two that can be powered by Canon LP-E6 as I have a handful of them, and as Canon seem to be limiting their new cameras to only work with the new batteries. I want to use my older LP-E6's, and the few third party ones I own. I am looking for LED panels...

Anyone got any experience with good or bad third-party camera batteries? I need to get some Canon LP-E6 batteries but they are very expensive compared to third party ones. The Ansmann ones look okay, but wondering if anyone has any experience of them? Thanks