I don't know, but that won't keep me from replying
My first thought, given the pricing, which is similar to the various Chinese generators out there, is that this is a Chinese made generator, branded as an Energizer product. Certainly, the logo is very similar to the familiar Energizer battery logo.
Aside from the similar logo, I couldn't find anything to indicate that this generator is in any way affiliated with the battery maker. No Energizer bunny.
Are they ripping off the logo, or did the battery maker decide to get in the generator market by having generators made in China, and relying on their well known brand name to boost sales?
Will be interesting to find out.