Small and lightweight, The Sony NP-FM500H Rechargeable M Series Info-Lithium Battery for Sony Alpha DSLR Cameras can be charged or discharged at anytime without developing memory effect. This means that it never loses its ability to hold a full charge. InfoLithium battery packs have a built-in micro processor that accurately calculates remaining battery life in minutes, and they also display remaining battery time on the camera's LCD as well as in the viewfinder by continuously communicating with the camcorder or digital camera.
PAUL H. from Pleasantville, Somewhere on October 08, 2016:
I know I will like the battery I have 2 others they ae a perfect fit. and will outlast the wanna be sony batteries. trust me they don't work or last as long the OEM type.
shipping was way to long very disappointed with SAMY"S only with shipping speed, not there product or stores. its been 7 days since hey say it was shipped. good thing I didn't need it now.....