SmallRig D-TAP Replacement Dummy Battery for Sony NP-FZ100, for Sony FX3, FX30, A7 III, A7 IV, A7S III, A7R III, A7R IV, A7R V, A7C, A7C II, A7CR, A1, A9, A9 II, A6600, A6700, ZV-E1, ZV-E10 II

Purchased this after a milky way timelapse got cut short by poor battery life from the 2 LP-E6NH batteries in my 5D4 battery grip gave out. I have since been able to shoot long timelapse sequences with this dummy battery connected to an external V battery with much higher capacity. The 5D4 has a small rubber seal that you will pull out of the way for the cord to fit. If using it in the battery grip tray, do not install it with another battery as you will receive an error. Otherwise, the camera accepts it just like any battery. This is a good purchase for anyone shooting long intervals, timelapse, or long video where battery failure is terminal to the shoot. (My motion control system is also powered by v batteries, so I already had those on hand.)

Works exactly as needed.

**Update. After leaving the previous review, SmallRig offered a full refund on the product. I have been a SmallRig user for a good while and fully support the products they make. Sadly it was something small in the design that made my setup not functional or make sense to use this setup.Not being able to spin the d tap plug is a bit frustrating. The direction the cable sticks out while being plugged in makes this not useable unfortunately. Previous d tap setups, I’ve been able to unscrew the end and flip it so the cable comes out the other direction if that makes sense.

Excelente muy buena calidad carga rápido

I wasn't blown away by this, but I will say it's been a handy addition.Before picking this up, I powered my camera off of my v-mount battery using USB. That was kind of nice because it allowed me to charge the camera between takes, and then if the V-Mount died, I had the internal battery as a backup.But I decided to pick this up just to kind of streamline the rig. And it works well. The design lines up with the cable out port on my R6 just perfectly. Went it no problem. The cord length is enough to have some room to play around with rigging options, so I'm not worried about that.For the money, it's good. It's not the best value ever, and I'm sure there are other competitors that do the job exactly the same. But this is work for me and I'm happy with the purchase.

Works fine on Canon R6II but does not work on Canon R5II. Not a design flaw or defect just not compatible with the new R5II battery needs.

Doesn’t work on r5c. I have a fully charge v mount battery but it only shows 20 mins battery life on my camera. Tried a different brand and it works

I have been trying for years to get "THE" perfect and long lasting battery option for my Sony A7IV and I think...I hope, I have found a long lasting, non-harmful option by using thus Smallrig adapter. Worked (so far) flawlessly!! I connect a 100w Vmount battery to my sling camera strap and connect the adapter to both and it is AMAZING!!!