[19 mm Rod Mount] I purchased this unit and it worked flawlessly, then suddenly didn't work one day... I contacted IndieProTools and they responded within one day with troubleshooting ideas, and ultimately shipped a brand new replacement unit and paid return shipping for the old one. Great product and excellent customer service from IndieProTools, I don't anticipate an issue with this new one. Works great and adds hours of usability on to the Pocket Cinema Cam. I dont use the XLR inputs often but it's a nice addition to have when needed.

[19 mm Rod Mount] Amazing!! this thing works like a charm, I was able to record non-stop video last week at a live concert and still had 3 hours left on the batteries!! when fully charged two canon Lp-E6 shoud give you around 4 if not more hours of juice!!! :D. Did I mention you can hot swap them too? Yes, If you have let say 3 batteries and they are fully charged you can let two run for 4 hours and then hot swap one of them for the extra juice!! so far so good I had nothing but great experience with this baby!! Keep in mind that sony a7s can only record 29 minutes at a time, lucky me I own a Ninja Blade so I'm by passing all this limitations :) ... On top of giving you 4 hours plus power on the A7S it also has two XLR mic inputs that will convert to a normal mic jack so you can attach it to the a7s and get two channels (keep in mind this does not provide phantom power).. this is just the cherry on the top :) don't expect phantom power. Great amazing product and it comes ready to attach to any rod system rig like mine (look at pictures)

[19 mm Rod Mount] Perfect fit

[2] It's nice to make that leap from shooting on a DSLR to working with the Blackmagic Production 4K camera. It makes the transition even easier when I'm able to use all the batteries I've accumulated over the years. Also, being able to plug in sound with XLR inputs is a HUGE bonus.

[0.65 lb] It is the best tool to potentiate the battery and make the shootings are practical and efficient.

[0.65 lb] This is perfect, it's lightweight, small, affordable and not in the way when I use a shoulder mount. Phantom Power for the XLRs would have been smart, not sure what they where thinking, but you can't have everything. That being said, I love the size. It allows my rig to stay small and very portable.

[2] Battery life on my A7s is poor, so I needed better battery life for portable work - this unit fits the bill. Its light, and allows me to use my collection of Canon batteries, for 4x+ recording time. Connects to my A7s cage, is light, and easy to use.

[2] I am currently using this product on a Canon 6D. It will work with both a Battery Grip and Body. Both have a rubber flap that allows the cord to come out the bottom. The batteries swap out well and hold into place. maybe the could fit a bit more snug but still works. if you are uncomfortable then you gaffers tape. with four off brand batteries it can extend shooting to around 14 hours. but if you swap out you can go continuous. The rod clamp I really cant use. would be nice if it were more versatile, but I have it sitting on another bracket. all in all,IMHO, this would be better than using a BG-E13 battery grip.

[19 mm Rod Mount] Works great no real complaint, except that I can't see the battery life This isn't entirely crucial seeing as how it goes into the power adapter for your camera that you keep a battery in so you will see that it's dead when you no longer see the charge icon and you are now running on camera battery only. I will say it feels cheap (but then again it is cheap, and works for now)

[19 mm Rod Mount] What a difference a little decent power makes! Many of us Sony acolytes have found out the hard way that even 6 FW50s is not enough to get you through a day; they drain fast and charge SLOWWWW. This nifty dual LP-E6 solution is a LIFE-SAVER for A7S ii users like myself and the added XLR audio inputs is a darn nice addition, to boot, even though I rarely use them. So far, it's been my primary power for the camera, giving me up to an hour & 40mins of sweet, sweet juice as opposed to the sad 40 to 45mins on a single FW50. I try to treat it gently, bearing in mind the plastic parts and the single 1/4x20 screw attaching the 15mm rod clamp to the housing, but that's easy to do at my age... nothing lasts forever but we can push are luck as far as it will go... ;)