All of them presumably. The first one claims that the customer in 2022 has had used the battery for a year already, meaning he has received it in 2021.
He specifically claims that it is the battery which is promoted on that site, which will get a Kickstarter in a few months. Obviously that can not be a genuine review.
Fake endorsements are a very common tactic on scam sites, where some snake oil is sold and you have "real people" giving extremely nice quotes about how great the product is.
The battery that we sell on the Kickstarter is our final product (the "v3" of our battery), but we had many initial clients (who came for bike electric conversion in our shop) and B2B customers on our previous prototypes, hence the reviews
We just thought we had a product which worked great now that we can open it to the general public, hence the Kickstarter: as we're still a startup, the economic model of the Kickstarter where we get the cash upfront will allow us to build a large batch of batteries for much cheaper
He specifically claims that it is the battery which is promoted on that site, which will get a Kickstarter in a few months. Obviously that can not be a genuine review.
Fake endorsements are a very common tactic on scam sites, where some snake oil is sold and you have "real people" giving extremely nice quotes about how great the product is.