Yep I had several of these already from different projects and even though the 9V output is rated for 1A it has been flawless. In fact, while powering the HXS I was able to charge my iPad Pro 10.5 with the USB port! The 9V output on the battery is center positive 2.5mm so polarity has to be reversed. I can't find a 2.5 to 2.5mm reverse polarity cable anywhere so I've just got a Frankenstein cable for now and will have to make a better one at some point. Edit: I can't see amazon links on iPad so hopefully that worked?