B&H Photo Video has deals on Vello Battery Grip for Sony a7, a7R, a7S, a7II, a7RII, a77, a77II cameras. Until November 24th, you can save 20% on these battery packs.
20% Off on VelloBG-S1 Battery Grip for Sony SLT-A77 & A77 II Camera – at B&H Photo Video
20% Off on VelloBG-S2 Battery Grip for Sony Alpha a7, a7R, and a7S Camera – at B&H Photo Video
20% Off on VelloBG-S3 Battery Grip for Sony Alpha a7 II and a7R II Camera – at B&H Photo Video