Kastar NP-F580 Battery 7.4V 3500mAh Replacement for Blackmagic Design NP-F570 Battery, Blackmagic Design Pocket Cinema Camera 6K Pro, Blackmagic Design Pocket Cinema Camera 6K G2 (4-Pack)

Using underpowered batteries in my BMPCC-6K Pro was a major pain during a documentary shoot. Sure, I could use V-mount batteries, but it makes the camera rig heavy on an all day “run-&-gun” production. With these internal batteries, my rig is light and I can get almost 2-hours each when shooting with these batteries (turning the camera off during resets, of course). Using the battery that came with my camera and the additional 4 purchased here, that’s 8 to 10 hours of run-time per day! With a multi-charger, I can shoot all day & recharge at night my, and i’m ready for the next day’s shoot. Best purchase I made for my documentary!

Duración excelente

Got this Kastar NP-F580 battery for my old Sony camera and for using on my lights and monitor setup. Charged up in a few hours and all works great, as expected. One thing I did notice, is this Kastar battery is a tiny hair wider than my original Sony battery, so it does fit a little snug on a few of my accessory products. My old Sony camera requires the battery to be completely inserted inside the battery chamber, and it was quite difficult to remove the battery out of the chamber, as it was quite a bit tighter than my OEM battery. Anyway, the battery works and feels as good, solid, and well made as my original battery. Great value, considering how much the OEM battery costs!

Needed more batteries for my BMPCC 6K and these were the best option. They hold a charge and were super useful for me on long shoots. I am planning on buying more so I can get through longer shoots. Would recommend.

Out of box, batteries had a charge and seemed to last decently. A week later, charging for hours barely gives any juice. Tried with multiple chargers. My batteries are effectively duds

They are like the original

Great battery life

A full charge got me just about 90 straight minutes of recording on the Blackmagic 6K Pro with 50% lcd brightness. Kastar also makes a 2900 mah version that gets me a little over an hour of straight recording time. Both perform well but the 3500s cost quite a bit more. Personally, I think they're worth it considering Blackmagic sells a single 3500 mah battery for almost the price of all four of these. So far, no complaints on quality but longevity... only time will tell.