 The near failure of battery startup Romeo Power acquired by Nikola Corp. in an all-stock deal in August took a toll on startup electrification converter Lightning eMotors, which expects fourth-quarter revenue to fall 80 below projections. The shortage of Romeo battery packs for the medium-duty trucks and buses that Lightning eMotors converts to run on electricity reduced its Q4 revenue projection to 4 million from 13 million to 18 million, the Loveland, Colorado-based company said Tuesday. 