Does anyone know the size of the dc in plug on the dr100 mkii? Maybe the adapt-a-plug letter too? Any cables you can recommend that have a USB plug on the other end? I'm needing to tape some shows with this and all the rest of my gear is back in the US and inaccessible to me. The internal Li-Ion battery is giving me about 2.5-3hrs but the eneloops I have are only giving me 15 mins (when removing the internal battery for testing). I've heard about people having issues with AA batteries dying quickly. I need a reliable 4-hours at minimum, so I need an external battery. Last time I used this thing was 2019 and I may have had a dc plug to usb cable, but I honestly can't remember.