I looked into this as the specs are amazing - but when looking a bit closer (or asking them any questions) it all falls apart super quick. Very sketchy replies, non of their numbers are making any sense in terms of physics, and different figures on their website vs campaign page...feels like its just a render with no actual product, and they still promise June mass production without any certifications etc done...a lot of people are going to lose their money here!
I made a quick YouTube video this week about it, search for Solly power bank Fake.
Don't back, and if you have: Run while you still can!