DIY power supply for digital back h5D-50wifi

[90s]

Conner999 thank you very much for your help. I will use your comments regarding the battery.
AC adapter and grip in my case it's an unnecessary expense. The price is good for the original device. But I don't see any point in using it.
I'm looking for batteries and cable to power my back only.

@DBF
is it safe from your experience?
did you have any problems with such equipment?

[DBF]

No Problems in use.
But I placed a Fuse 2A slow blow in the Plus - Cable from the Batt.

[Conner999]

No worries, no sense spending more money than need to.

If looking for an L battery holder, the one sold by SmallRig (also sold by others) is nice. It has a rotating 1/4-20 socket on the underside that you can use to secure to a stud.

The one by Blind Spot Gear, The Power Junkie holder also has two USB ports that supply 5V from the battery and the L series can also be charged in the cradle from your laptop or other 5V source.

Let us know how turns out.

[90s]

Thank you for your comments and suggestions.
Conner999 your idea with batteries is very good.
I am thinking about this.
https://www.ebay.co.uk/itm/2x-8700mAh-NP-F960-Battery-for-Sony-NP-F930-NP-930-NP-F950-NP-F970-CCD-RV-Camera/184333831591?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20160908105057%26meid%3Df93da6b784ef4b6f9ca20bd7fec8dd40%26pid%3D100675%26rk%3D5%26rkt%3D15%26mehot%3Dnone%26sd%3D313128284969%26itm%3D184333831591%26pmt%3D1%26noa%3D1%26pg%3D2380057&_trksid=p2380057.c100675.m4236&_trkparms=pageci%3Afeb97ed4-c9be-11ea-9a14-ea68f42b78c0%7Cparentrq%3A6723ebfc1730ad33ded5c415fff838b4%7Ciid%3A1

A lot of such batteries are 7.4V, this is exactly 7.2V
The second reason is that I have one LED light for such a battery. So 2 in 1

I also found a very interesting battery plate, I only have to buy an adapter or change to a different socket:
https://www.ebay.co.uk/itm/Battery-Adapter-Buckle-Plate-w-7-4V-DC5-5-2-1mm-Plug-for-Sony-NP-F-Series/324231621914?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20160908105057%26meid%3D8c8d010c2a9f47d2b9f3f206caec41f2%26pid%3D100675%26rk%3D5%26rkt%3D15%26mehot%3Dnone%26sd%3D184333831591%26itm%3D324231621914%26pmt%3D0%26noa%3D1%26pg%3D2380057%26brand%3DUnbranded&_trksid=p2380057.c100675.m4236&_trkparms=pageci%3A4313827e-c9bf-11ea-b12f-0e4baf4fb02f%7Cparentrq%3A6725abec1730a69d3435b96efff7e2d4%7Ciid%3A1

Now I think, because the back does not have a tripod socket.
I have an idea to buy the original plate, and glue with resin battery plate.

The problem I see is that this plate is mounted with only two screws, which may not be enough for such a heavy set.

such a construction would be very similar to the original.

[90s]

OK I was looking for information and decided to order this:
https://www.newsshooter.com/2019/03/23/blind-spot-power-junkie-np-f-review/
+
Genuine Sony NP-F570 L-Series ( Info-Lithium) Battery.
H recommends the L series so I found a used.
1M cable and plug for back.
https://www.ebay.co.uk/itm/1-3mm-x-3-5mm-Right-Angle-Male-DC-Power-Plug-Connector-Jack/262053407031?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649