NP-FP50-S Battery for Sony Video Camcorders, models include the DCR-HC20, DCR-HC30, DCR-HC40, DCR...
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$14.50 at Laptops for Less
NP-FP50-G Battery for Sony Video Camcorders, models include the MiniDV DCR-HC20, DCR-HC30, DCR-HC...
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$19.95 at Laptops for Less
NP-FP30, NP-FP50, SONY: Sony DCR-30, Sony DCR-SR Series, DCR-SR30E, DCR-SR40, DCR-SR40E, DCR-SR50...
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$19.95 at Avant-Batteries