Hi,
Hopefully this very usefull thread is still alive!
I read on a French forum that Fostex FR-2LE could be powered directly from a 5V powerbank.
I tried, and guess what, it works perfectly fine, with 1 or 2 phantom powered clippy em272 mics (from Micbooster).
I now make several hours long recordings with a regular Ugreen powerbank, using the 2.1A usb output and a usb A to 5.5*2.1 jack adapter cable.
A cheap and efficient solution!
I'll probably be back soon on this thread, cause I also need to power a Fostex FR2 (I'll probably need to change the weird EIAJ 4 DC-in plug on my unit for something more common), a Tascam HD-P2 and a Sound Devices 702.
Cheers, Cedric from France