BUZZ-Ballard Power Systems Inc: Bigger Q4 loss, lower revenue
** Fuel cell maker's shares down 8.8 pct at $2.50 premarket
** Reports bigger Q4 loss and lower revenue, hurt by lower-than-expected sales in its telecom backup power business and termination of licensing contracts in China
** Revenue from telecom backup power business, the second-biggest contributor to revenue in the year-earlier quarter, falls 47.5 pct to $3.1 mln
** Up to Wednesday's close, stock had fallen 18.2 pct in the past 12 months
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