Tesla has officially scrapped the range extender accessory it was making for Cybertrucks. In emails seen by Electrek, Tesla confirmed to Cybertruck owners that it’s “no longer planning to sell” the $16,000 battery pack, and that it would be issuing full refunds for the $2,000 deposit put down by customers.

Cybertruck owners no longer have the option to pay more for a battery accessory to extend their vehicle's range.

Tesla initially promised impressive range numbers of more than 500 miles for the Cybertruck, but the automaker recently decided to kill off the range-extending battery it needed to deliver those numbers.