Amazon.com: Kastar 4-Pack EN-EL9 Battery and LTD2 USB Charger Replacement for Nikon D40 D40x D60 D3000 D5000 DSLR Camera Battery Grip BG-2A, Nikon EN-EL9 ENEL9 EN-EL9a Battery : Everything Else
Battery Grip for Nikon D5500 and D5600, Meike MK-D5500 Pro
Amazon.com : DSTE Replacement for Pro IR Remote Vertical Battery Grip + 2X EN-EL9 Compatible Nikon D40 D40X D60 D3000 D5000 SLR Digital Camera : Digital Camera Batteries : Electronics
Kastar Battery LTD2 USB Charger for Nikon D3000 D5000 Camera Battery Grip BG-2A | eBay
Vello BG-C12 Battery Grip for Canon EOS 7D Mark II w/ AA & LP-E6 Holde - Victory Camera