Christopher Allen wrote: > NP-F960s (Lithium Ion batteries) hold 38.8 watt-hours > of energy and weigh 300 grams. 38.8 divided by 3 and > multiplied by 10 equals 129.33333 Wh/kg. Interesting, apparently they pack as much punch as some of the lithium-ion polymer batteries. > (And that is the specific energy, not the energy density, Apparently Specific Energy can be a measure by either mass or volume. Here's a note on this: http://www.ex.ac.uk/cimt/dictunit/notes3.htm#spenergy And here are conversion caculators for both: http://www.ex.ac.uk/cimt/dictunit/ccspengm.htm http://www.ex.ac.uk/cimt/dictunit/ccspengv.htm The beauty of the english language is that there are 47 variants of the same term that mean the same thing to some people and something altogether different to other people. > Energy density would be watt-hours per unit of area. > Similarly with specific power and power density.) This glossary lists energy density as a weight measure http://www.eren.doe.gov/consumerinfo/glossary.html I guess it depends on what your definition of energy is and what your definition of density is. There seems to be a lot of different definitions out there. But in actual every day usage, any foreigner with translation dictionary in hand will not encounter either the volume or mass energy density terms, instead someone will tell them "these batteries hold more juice". Juice? You know, they pack more punch, have more whallop, just to make sure we are on the same page. What page? And just who are the "they" in "they say" anyways? =8^) -- Doug ------------------------------------------------------------ Grow your own Wearables: http://wearables.los-gatos.net What I'd like is to have you call me and my jacket answers ------------------------------------------------------------ -- Subscription/unsubscription/info requests: send e-mail with subject of "subscribe", "unsubscribe", or "info" toWear-Hard Mailing List Archive (searchable): http://wearables.blu.org please, Please, *PLEASE* don't subscribe through a forward/false domain
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