Hi, I have the Ikan plate...indeed I have two. one doesn't play while the other yes. I hope Ikan change me shortly but they don't answer my mail.
However the adapter play very well but with SONY NP-F970. I don't like the plug power adaptor. Simply it's a shame. you pay bucks for this plastic plate and don't get a perfect plug to power the camera. I wonder how it's not possible to change the cable and get a original plug 2.5mm. It's a shame. and you risk to damage the camera as well. because the plug is much tall.
So, the Sony battery 15euro in europe power very well, and (1) battery is enought for 3h and more.
Make a calculation of ahpere to min. But I personally can say It's a cheaper way to power the camera, and lightweight.
I don't recommend the Canon LP_e6 for this camera. too much lower power. 30' it's just enought for this kind of battery.