[34 W] I use this with my Panasonic GH5 and can easily power my camera for 4+ hours with a NP-F970 style battery. So far, after several gigs, I haven't had any unexpected power losses. The battery fits snugly. Even when running and gunning, I don't worry about it falling out. I have also used the USB ports to power my Tascam DR60D-MkII recorder and my phone. Amazingly it can power both those at the same time as my camera. I'm not sure how reliable it is when powering multiple devices at once... but it seems to work. For such a simple piece of Kit, I'm pretty impressed with the Blind Spot and will probably order another one soon.

[Positive] This thing is built really, really well. It's plastic, but incredibly sturdy, and I don't worry about the plugs slipping out of the ports. It's a bit difficult to insert and remove the batteries though, so you won't be swapping batteries smoothly with this.

Location of the 1/4 hole is a bit strange considering that the whole unit is a bit shorter than the length of a NP-F battery. (The hole is exactly in the middle of this unit, which ends up being towards one side of the battery when it's loaded in).

I think the unit itself probably doesn't drain battery, but if you leave it plugged into something, e.g. my Ninja V monitor, I think it still drains a bit. Battery life was shorter than expected.

Mounting it to your camera cage is possible, but I haven't yet found a great way to attach it without it facing an odd angle. e.g. I want it to face vertically when attached to the vertical side of my camera, but it faces 20-30 degrees off axis when I use 1/4 to 1/4 screws. Hmm...

[0.215 lb] I used this pieces to build a DC power adapter for my canon EOS 70 D camera. its all performing perfectly thank you so much

[1] Does exactly what it's meant to do. Well built and very well thought out design. Probably not it's intended purpose, but I wound up using it to power my phone with an 970 battery. Got nearly 2 days out of it.

[Bioplastic] Great for those long hours doing Astro Photography at least 4 to 5 hours longer than a single battery with 750 battery. Thank you B&H. Great product.

[Bioplastic] I love the item, I needed something to keep my camera equipment and all the other devices power up. I hook them all up and it’s more than what I expected..
Amazing product

[34 W] This has been a great addition to my video kit. Being able to power any device over USB (including charging a phone) with a battery I'm already carrying is great, and it means I can stop carrying a dedicated USB power bank. As a bonus, it can also charge a battery via USB, so you can keep an extra battery topped up while not in use.

[34 W] I am pleased with this product.

[0.215 lb] I have had the little piece of gear for about 2 months now and I have used it on several projects. It is a very flexible power supply for your cameras and depending on how your camera rig is set up you will have the ability to power or charge up to 3 different things at the same time. I have used it with the Sony a6400 and the Sony a7iii and both cameras resulted in ALL DAY BATTERY LIFE while using the NP-F970 equivelant batteries (I used the DSTE NP-f970). I also have taken the time to test the power junkie for recording consecutive 4K clips (30min each) and the a7iii was able to record 8, 30 min 4K clips and the battery had 52% left!!! That's 4 HOURS of consecutive recording time on half of the battery! If you are a videographer that uses hybrid cameras as your primary cameras then this little addition IS A MUST. Not only is it a great power supply BUT it is ALSO a charging station for the NP-F batteries; an all-in-one piece of gear. Thank You Blind Spot Gear for a great product!

[Bioplastic] The only single option that I've found for what i needed. I would have otherwise had to have purchased 3 different items to do what this one can. Running wireless video and a wireless tally light. Makes for a slim set up for our roving rig.