CANAVIS 7.4V 1200mAh Power Battery for Sony NP-FV30, NP-FV40, NP-FV50 and Sony DCR-SR15, SR21, SR68, SR88, SX15, SX21, SX44 Li-ion | 7.4 Volts | 1200 mAh | Black | Brand New 100% Compatible with Sony NP-FV50 Batteries are made with the highest quality materials No memory effect so that you can charge battery at anytime 30 Days Money Back and 1 Year Warranty