Masione 3.7V 1050mAh NP-BY1 Li-ion Battery for Sony HDR-AZ1VR HDR-AZ1 Action Camera Brand New | Li-ion | 3.7 Volts | 1050mAh | Black 100% Compatible with Sony AZ1 HDR-AZ1VR 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