I read through a few recent threads, but it seems like batteries in the 6v/9v option are harder to find than they used to be. I have this currently, at least, this is what it looks like:
http://www.globalmarket.com/product-info/power-bank-for-notebook-laptop-battery-charger-tablet-power-supply-8175877.htmlWhen I bought it, it was sold under the name PowerBank MP20000A (I'm shocked to admit this, but I just looked at emails and I think I bought it in 2011 - I'm not sure that's true, maybe I bought a second at some point, but it's certainly possible). It has a button to select the voltage and I set it to 9v when running the v2. There's no power switch, which I like because it's one less thing to bump at a show. Then at some point I found it as "RAVPower 23000mAh Portable Charger Power Bank External Battery Pack(Xtreme Series,3-Port,9V/12V/16V/19V/20V - LCD Display)" when recommending it to someone else (2015). Now when I look at Amazon, I don't see any selectable voltage packs. I think I can change the v2 to 12v, but won't it just blow that voltage off, aka heat up? I see the Talentcell options, but they only have a 12v barrel output.
I just bought a Sonosax sx-m2d2, which you can power with USB in addition to the internal 18650. I was thinking I'd buy a new version of my current battery because I don't know that it'll last my running a v2 and m2d2 on USB for a whole show (running DPA 4023s and 4028s).
Is there a good option out there for something that'll do a barrel DC out and USB simultaneously for 6v-9v? Or can you run a v2 off of the 5v from a USB plug?
Thanks!