Summary: I contacted Sony for this battery and they don't even make it any more. Not to mention when they did...it didn't last very long at all. So I bought SterlingTek's generic NP-SF11 battery. After contacting their customer service department I found their generic POWWER brand battery is higher mah 1500mah to be exact. This is a great battery from a great company. Get from SterlingTek and you will be happy.
Summary: So I bought this battery from Sony not 1 but two and had issues with both. They didn't last long at all...maybe 30mins IF i was lucky. So i decided to try my luck with a generic battery. I went with POWWER brand by sterlingtek. Theirs worked great and I was impressed with the amount of time I got with it compared to my 2 sony original batteries.
Summary: I bought SterlingTek's NP-FS11 equivalent battery, POWWER brand for my DSCF505V and it worked WAY BETTER then my Sony original which you can't even get from Sony any more because they don't make it.
Summary: This battery is labeled on the web site as being an NP-FS11, which is what the battery in my old Sony DSC-P30 is labeled. But it will not work in that camera, despite fitting in perfectly and being virtually the same in specs. If you look closely at what you get, it is the NP-FS-11H - note the extra H. The camera turns on, but then says it will only take the "infoLithium" battery and turns off again.
J. S. Cruser "The early bird gets the worm, b..., Amazon
8 March 2005
Summary: I too had the low battery problem. I followed the instructions here about taking pic after pic with the flash until the battery runs out. I also saw the note about pausing and when I paused for a while the battery indicator came on with 77 mins left. Now dumping the pics off the camera and the timer went up to 106 minutes. We will see how long the high charge numbers last......thanks for the posting, you saved me some bucks too!
Summary: following exchange with sony says to use NP-FS12: user ken has entered room analyst Marshall_ has entered room Marshall_> Thank you for contacting Sony Online Support. I will be glad to assist you. ken> good. i read about a bunch of problems on amazon.com with NP-FS11 and wondering if i should buy a third battery cuz my first went weird and had to be replaced. Marshall_> It is always recommended to use the batteries supplied with the camera.
Summary: these batteries are brutal - the only thing worse is when you call Sony customer service and they "have never had a problem" and laughingly tell me to send in the battery for a test - which will cost me $61.00. if someone in my company took that action they would be looking for a job. do not buy ANYTHING with this battery. its to bad because Sony does do some things right - but have lost me....all due to a battery!