Reddit reviews DSTE 2X Replacement Li-ion NP-F970 Battery for Sony DCM-M1 MVC-CD1000 HDR-FX1 DCR-VX2100E DSR-PD190P NEX-FS700RH HXR-NX3 Camera as NP-F930 NP-F950 NP-F960

Just get an NPF adapter and a couple NPF batteries. It would probably cost you around $60 and accomplish the same thing with a much smaller footprint.

https://www.amazon.com/SmallRig-Battery-Plate-Adapter-BMPCC/dp/B01EFSUK98

https://www.amazon.com/DSTE-Replacement-MVC-CD1000-DCR-VX2100E-NEX-FS700RH/dp/B00M3P9YBQ

https://www.amazon.com/Wasabi-Power-Battery-Charger-NP-F730/dp/B00FPZY0BK

One of those batteries will keep you going for several hours.

Amp Hours (Ah) is not a cross platform measurement of capacity. 5Ah for your phone is likely at a different voltage than the 2.6Ah LPe6 battery.

Amps*Volts=Watts

Watt hours is a true measurement of capacity because you can extrapolate the amps and volts.

What I use is an NPf 970 battery on a Blindspot plate with a 12v dc out to weipu 2 pin cable.

Companies get cute with what they quote as the "MAh capacity" of a given battery, but the Sony standard for a 970 battery is 6600MAh at 7.4v I believe, which is 48.84 Wh. I haven't really seen truly higher capacities than that despite what manufacturers say.

The Pocket 4k draws *roughly* ~25Wh of power (from my tests), depending on screen brightness, codec, frame rate, and attached accessories. So one of those batteries gets you perhaps up to 2 hours if you're lucky. If you need endurance longer than that, I HIGHLY recommend getting a VMount or Gold Mount battery instead of a battery bank, because it will allow you to expand to other cameras and lights in the future and they will provide much more power. You can get VMount batteries that go up to roughly 100Wh. These are professional cinema batteries the industry standard.


NPF batteries allow you to power other things like lights and monitors as well, plus they are small enough to gimbal mount or go handheld if you need to. Banks and VMount will be larger and heavier. That is why I chose NPF.

I use:

Battery (DSTE and Powerextra have been fine for me):https://www.amazon.com/DSTE-Replacement-MVC-CD1000-DCR-VX2100E-NEX-FS700RH/dp/B00M3P9YBQ/ref=sr_1_3?keywords=npf970&qid=1572497795&sr=8-3

Plate:
https://www.amazon.com/Power-Junkie-NP-F-Blind-Spot/dp/B07NF14XW4/ref=sr_1_3?keywords=blindspot+npf&qid=1572498095&sr=8-3

Cable:
https://www.amazon.com/KONDOR-BLUE-Adapter-Juicebox-Blackmagic/dp/B07Y5S6S86/ref=sr_1_7?keywords=pocket+cinema+4k+power+cable&qid=1572498113&sr=8-7

I purchased a 7 inch unit with a 'Feelworld' sticker on it for $135 and it works surprisingly well. I also bought some batteries (Sony L series) and a charger as well as a magic arm and a carrying case. I am very pleased with it and the only gripe I have with it is that the power button is more like a standby button. I have to remember to pop the battery out so I don't end up with it being dead.

Here's some links:
Magic arm - https://www.amazon.com/gp/aw/d/B00QTIVL82/ref=yo_ii_img?ie=UTF8

Clamp - https://www.amazon.com/gp/aw/d/B01CM5SNY0/ref=yo_ii_img?ie=UTF8&psc=1

Case - https://www.amazon.com/gp/aw/d/B0196JV89C/ref=yo_ii_img?ie=UTF8&psc=1

Huge battery (one last all day about) - https://www.amazon.com/gp/aw/d/B00M3P9YBQ/ref=yo_ii_img?ie=UTF8&psc=1

Inexpensive HDMI cable - https://www.amazon.com/gp/aw/d/B014I8SIJY/ref=yo_ii_img?ie=UTF8&psc=1

Smaller batteries and charger - https://www.amazon.com/gp/aw/d/B00CPYXQ2S/ref=yo_ii_img?ie=UTF8&psc=1

And finally, the monitor - https://www.amazon.com/gp/aw/d/B00SV5K9WA/ref=yo_ii_img?ie=UTF8&psc=1

Let me know ow if you have any questions!