Thank you for explaining it. I feel that Sony just should have said that the battery last for 70 minutes or so.
Gena --- In videoblogging@yahoogroups.com, David Jones <david.jo...@...> wrote: > > On Sat, Feb 20, 2010 at 3:00 PM, compumavengal > <compumaven...@...> wrote: > > > > I was looking at the specs for the Sony Bloggie MHS-CM5: > > > > http://www.sonystyle.com/webapp/wcs/stores/servlet/ProductDisplay?catalogId=10551&storeId=10151&langId=-1&productId=8198552921666073267#specifications > > > > I don't know how to convert a 3.6 volt into watts to find out how long the > > battery will last. Under power consumption it states that 1.9W @ 720 30p > > Recording. > > > > My experience tells me that the battery time is about 60 to 90 minutes in > > recording before the battery conks out. > > > > Can you sling that number hash and tell me how long the battery can > > function before heading south? > > > > Thanks, > > > > Gena > > http://createvideonotebook.blogspot.com/ > > You can't tell just from the voltage rating, you need to know the > watt-hour rating. > According to: > http://www.sony.co.uk/product/dcc-batteries---chargers/np-bk1 > the battery is rated at 3.4Wh, which means ideally it can deliver 3.4W > for 1 hour, or any ratio there-of. > > So if the camera takes 1.9W that's a battery life of 1.8 hours > continuous recording (3.4Wh/1.9W). > > There are other technical factors involved, but that's a fairly good > best case approximation. > > Dave. >
