So I just put in my order for the battery grip for my 7D from B&H and ordered 2 Sterlingtek batteries from Amazon.
I'm really excited but really sad at the amount of money I just spent. The batteries though are a definite plus to my wallet being 3rd party
and I've been wanting a BG and spare batteries for a few months 
Just for reference. The Sterlingtek's will provide the same information like %battery left in the battery info screen right?


