It's called Powerbank and comes with 3350mAh capacity, which isn't very big compared to a lot of other portable chargers on the market. It comes with microUSB and Lightning cables connected directly into the charger as well as an integrated USB.
Given that Tesla as a company is known for its innovations in the world of electric energy, we would expect its power bank offering to be experimental too, but at the moment it looks more like a memento for Tesla fans rather than a must-have power bank.
Paying for the brand
We've yet to see it in the flesh, but the design seems compact, slim and should slide into your bag without weighing you down, but it's expensive for a portable charger.
It's $45 in the US - that's about £35/AU$60. Compared to a lot of other portable chargers on the market that's expensive, especially for such a relatively small capacity battery pack.
If you don't care about the Tesla branding, we'd recommend checking out the best power banks list we've put together that shows you some of the greatest portable chargers you can buy right now.