STK's Sony NP-F550 2800mAh Battery is a Long Lasting Battery for Sony HandyCams and LED On-Camera Video Lights Using NP-F550 batteries [STK's Sony NP-F550 Battery Pack comes with a 1 year 100% customer satisfaction guarantee] STK's 2800 mAh Sony NP-F550 Battery Pack is made with #1 Japanese Cells. Should give you approximate 5 hours of recording time on your Handycam depending on your settings. This is the best high mah NP-F550 battery for On-Camera Video Lights including NEEWER, Chromo Inc., Polaroid, and more. Guaranteed to operate with your Sony Handycam or On-Camera LED Video Lights using NP-F330, NP-F550 or NP-F570 batteries CE Safety Certification.