The Street Beat

Shares of A123 Systems (Nasdaq: AONE) tumbled by double digits to an all-time low Monday after the company said it would have to replace battery modules and packs that might be defective.

A123 Systems, Inc. (NasdaqGS: AONE) is trading up slightly at $ 1.72, up 0.04(2.38%) 1:47PM ED on over 800,000 shares. Earlier in March the Company reported that Advanced Traction Battery Systems (ATBS), A123's co-owned Shanghai-based joint venture company, has been selected to develop battery packs for a new plug-in hybrid electric (PHEV) sedan from Geely, one of the fastest-growing automakers in China and the parent company of Volvo Car Corporation.

A123 Systems Inc. (Nasdaq: AONE), a maker of batteries for electric vehicles, said it will supply packs for Tata Motors Ltd. (NYSE: TTM)’s commercial vehicles.

Some great information from the smart guys at Think Equity Research. " Entering 2012, we continue to view cleantech as investment theme broadly defined as asset and resource optimization plays, leveraging intelligence to better utilize constrained infrastructure and resources (energy, material, land, capital, time, etc.). We advocate a diversified approach to cleantech with long and short exposure across sub-segments and geographies, noting that individual sub-segments and regions will vary in their developmental stage as well as investor sentiment. With that in mind, we believe 2012 is shaping up to be another year of transition in cleantech. We expect macro-economic concerns to weigh heavily on global growth, particularly in OECD countries. Despite slow growth, we expect a handful of breakout performers offset by several significant disappointments.

www.InvestorIdeas.com, a global investor research portal for independent investors, reports on this weeks trending top ten investor searches.  BioSante Pharmaceuticals, Inc. (NASDAQ:BPAX ) was the most searched by investors in the past week following news from the Company that the independent Data Monitoring Committee (DMC) had completed the seventh unblinded review of the LibiGel Phase III cardiovascular and breast cancer safety study, which has completed enrollment of subjects. The independent DMC has recommended that the LibiGel safety study should continue as per the FDA-agreed protocol, without modifications. LibiGel (testosterone gel) is in development for the treatment of female sexual dysfunction (FSD), specifically, hypoactive sexual desire disorder (HSDD) in menopausal women, for which there is no FDA-approved product.

Investorideas.com, a leader in sector research for independent investors issues the following nanotechnology stocks commentary for October13th. Nanotech, once one of the hottest stock sectors around has always been thought to be a game changer in sectors including biotech, energy and tech.

Investorideas.com, a leader in renewable energy stock research, releases a trading alert for battery stock, A123 Systems, Inc. (NasdaqGS: AONE ). The stock has jumped as high as $3.97, now trading at $3.90, up 0.59 (17.82%) 12:32pm.

 Investorideas.com, a leader in cleantech investor research, reports on electric car stocks trading and news for 19th September. In an overall down trading day in yesterday’s session, there were some stocks in the sector in the green.  Electric cars are making headlines at the Frankfurt Motor show, said to be the star of the show.