(Reuters) - Nikola ( NKLA ) on Thursday beat estimates for quarterly deliveries of hydrogen fuel cell trucks as the electric-vehicle maker looks to move away from its battery-powered trucks.

The company said it has delivered 40 vehicles in the first quarter compared with estimates of 30 units, according to four analysts polled by Visible Alpha.

It had said it would return all battery-powered trucks to customers by early third quarter after resolving an issue that caused coolant leaks in the battery pack leading to fires.