Ener1 First Quarter 2009 Financial Results and Management Call Scheduled for May 11

NEW YORK, May 4, 2009 -- Ener1, Inc. , developer and manufacturer of advanced lithium-ion batteries to power the next generation of hybrid and electric vehicles, will release its first quarter results for 2009 on Monday, May 11, 2009 after the market close. Management will conduct a conference call on the same day at 5:00 p.m. Eastern Daylight Savings Time, to discuss the company's results and strategic outlook for 2009.

The call is being webcast by Thomson Financial and can be accessed on the home page of Ener1's website at http://www.ener1.com/.

To participate in the conference call, please dial +888.713.4214 from within the United States, or +617.213.4866 from outside the United States. The participant pass code is 69859156.

Participants are urged to dial into the call at least ten minutes prior to the call to register, or may pre-register for the call at: ENER1

Pre-registrants will be issued a pin number to use when dialing into the live call which will provide quick access to the conference and will bypass the operator upon connection.

A recording of the call will be available until May 18, 2009. To access the recording, please dial +888-286-8010 from within the United States, or +617-801-6888 from outside the United States. The participant pass code is 35493981.