Ecotality, a battery maker for electric cars, came up short of Wall Street's earnings expectations.

The Scottsdale, Arizona, company Wednesday reported a net loss of $1.56 million, or $0.01 per share, on revenue of $2.9 million for the third quarter, compared with a net loss of $0.91 million, or $0.01 per share, on revenue of $0.24 million in the same period a year ago.

Wall Street was forecasting a net loss of $0.54 million on revenue of $3.5 million for the third quarter.

“Ecotality has a stable revenue base derived from a well diversified product and service portfolio that is founded upon growing sectors of established industries,” Ecotality CEO Jonathan Read said in a statement.

Ecotality hopes to be profitable by the fourth quarter.

Last year, the company bought a slew of companies: fuel cell company Fuel Cell Store in June, lead battery and solar module developer Innergy Power in September, fast-charger producer eTec in November, and Minit-Charger in December, which is now a part of eTec.