[USB] So I was hesitant to pick this up because I was considering the nucleus nano (great price) as well as the DJI LIDAR for the Ronin-3 pro (which I don't have, but read it could be used separately.) 

Here's why I went with the PDMOVIE Live Air 3 Smart Lidar. 

Price and included accessories. While the batteries and charger seem/feel a little cheap, they work just as intended and for long. 

Has Lidar. When researching, the nano nucleus II didn't have Lidar, which I wasn't opposed to, but the DJI Lidar obviously did have it which was a plus. The caveat is that the DJI lidar requires the transmitter and some breakout box that adds another $1200 to the cost of the already expensive lidar ($700 or so.) I was not about to drop $2k for lidar only and no focus wheel. 

With the PDMOVIE I could rely on the focus wheel or the Lidar. And at a shoot, both worked really well. It worked with my bright tangerine misfit atom matte box WITHOUT the shade/visor (only the Matte box itself, not the rubber piece) but I did have to make sure the lidar was facing in-between the clamp and the tightening wheel of the matte box. It worked really well on my 16-28mm VISTA lens and Komodo-X. The tokina Vista 25mm was a little more difficult because of the field of view but it worked. If I had slightly smaller lenses, this wouldn't be a problem at ALL.

For talking head shots, there was no issue at all. For tracking shots in the dark, I could say the same, but I had to frame just off center to the left so that the lidar could SEE. But then I could use the focus wheel which switches off auto focus and lets you quickly control the lens without much, if any, lag.

Anyway, for $500, it's a good quick solution to have for those talking heads, or jobs where you're running and gunning. My ONLY gripe about it is the batteries and chargers were made from molded plastic and not rubber. At least they last long, though!

[USB] It work perfectly with the Godox Ad600bm

[0.1 lb] After lots of reaserch I found out that this is the same charger that came with my units and I lost. This manufacturer made the other charger so its the same one with different stickers!

[0.1 lb] I love this guy, because you can save time filming motion scenes without need services of focus puller guy.

[USB] Works great for charging my EM1 Mark II battery. The camera came with a charger but I wanted a second one to charge 2 batteries at the same time. It would be nice to have a smaller travel charger but no other chargers are available for the BCH-1 yet.

[USB] Small and very lightweight. Easy to calibrate, but sometimes have to remove battery to re-calibrate. The thin controller that goes with is brilliant.
And on/off switch would help. It’s tricky to figure out to push the battery to the side.

[0.1 lb] It charges the batteries. Not much more to say.

[USB] But another after buying my Nucleus-M system to have an extra charger since both the Nucleus-M and my Gimbal takes the same batteries.

[USB] misplaced my original charger so had to get this one--yes it works out fine. the hardest part was wafting for it ---When is Olympus going to make more batteries for this camera so I can order more batteries--need them when on vacation or hiking don't want to run out of power

[0.1 lb] Had the Tilta Nano before. Like this better overall. Less wiring to deal with as well. And the LiDAR focus works great and is a life saver if shooting without a 1st A/C. Have the basic kit (not the stronger motor model) and still had enough torque to rotate smoothly all my cine lenses. Kit comes with few extra batteries, which helps also.