Specs indicate 48V, 10Ah Lithium battery pack with a 600W brushless geared motor and 35-50A. The single-speed ElectrickBas can peak out at 30mph (48km/h) with a range of 20 to 34 miles (32-54km).
The base model will sell for about $2,000 with production planned to start in September.
Additional links with more information:
Promotional Video from Voltage Cycles