I have the LUKAS UPS:
http://lukasstore.com/new-lukas-all-...tery-pack.html
The vendor is in South Korea, and I remember the shipping took more than 2 weeks (it was shipped out of South Korea).
They have two versions, 2,600 mA and 3,000 mA. I went with the 3,000 mA version, but I couldn't tell from the label that it's the 3,000 mA version.
I got it for my BlackVue DR650GW-2CH, because I didn't want to mess with hardwiring the Power Magic Pro (which I did get for free with the BlackVue).