Battery Pack BP-820. Battery Pack. $112.00 $140.00. FREE Standard Shipping and Handling. + 1 more. Notify me when available. Shows moderate wear, scuffing or marks to finish. Canon Battery Grip BG-E6 is an optional battery grip designed specifically for the Canon EOS 5D Mark II. It allows users to load a choice of one or two LP-E6 battery packs. With two packs, the already-impressive battery life is doubled, compared to using a single LP-E6 pack in-camera. Canon EOS 5D Mark III Canon EF 135mm F2L USM Canon MP-E 65mm f/2.5 1-5x Macro Canon EF 70-200mm F2.8L IS II USM Canon EF 16-35mm F4L IS USM +8 more Reply Reply with quote Reply to thread Complain Buy Really Right Stuff BGE6-L L-Plate for Canon 5D Mark II with BG-E6 Grip featuring For the Canon 5D Mark II with BG-E6, Fixed L-Plate, Arca-Type Compatible Dovetail Mount, Maintains Ports and Battery Door Access, No Obstruction to the LCD Monitor, Black Anodized 6061-T6 Aluminum, Laser-Engraved Center Marks, 1/4"-20 Accessory Mounting Socket. Compare with similar items. This item Canon LP-E6NH (4132C002) BM 2-Pack of LP-E6N Batteries and Dual Battery Charger for Canon EOS R, 90D, 60D, 70D, 80D, 5D II, III, IV, 6D, 7D, 7D Mark II, XC10, XC15 Cameras. NEEWER LP-E6NH Replacement Battery and USB Charger Set, 3-Pack 2250mAh Replacement for LP-E6NH Battery & Triple Slot USB Charger Reminiscent of the old-style motor drives, this grip has a vertical shutter release button (plus other controls) that let you securely handle the 5D Mark III even with a big 70-200 f/2.8 or 300 f/2.8 attached. Try a second battery. Try a second body. Try OEM and third party batteries. Accept the warning message about the lack of communication and try to use the battery anyways. Try pulling the battery out and reseating it at least a few times. Try removing the tiny watch style battery as well as removing the regular battery at the same time. This Polaroid grip was a sight for sore eyes with the price tag of $90 when compared to the Canon BG-E6 grip which runs $235 on a good day. Tactile rubber on the front feels good when carrying a 5d mark II portrait. laSdx.