From: Scott Dorsey on 22 May 2010 09:25 In article <Xns9D7FEA0A23791chuck(a)127.0.0.1>, chuckcar <chuck(a)nil.car> wrote: Kludge wrote: >> Likewise, though, computers made the lithium ion batteries possible. >> The chemistry has been around for fifty years, but as noted the cells >> are extremely delicate and easy to damage. Computer-controlled >> charging systems allow them to be charged and discharged very >> precisely with very tightly controlled load balancing. Without the >> fancy charging systems, they'd be quickly destroyed. > >Um. No. They were used in ELT's (the emergency locator transmitters that >allow them to find a plane when it crashes) for airplanes before that. And >before you say *very* limited market, Everything down tosingle engine >Cessna's are required to have them onboard. I have no idea about ultralights, >but then again, I figure they deserve what they get for owning one. No, those are lithium primary cells, no real relation to lithium-ion batteries, which are rechargeable. The lithium primary cells were actually a WWII development and they remain very popular for applications where the extremely low self-discharge is important. You can leave them on the shelf for decades and they'll still be fine, which is important for something like an ELT. Not rechargeable, though. Different chemistry entirely. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis."
From: cuhulin on 22 May 2010 09:43 Yes, I do own and use a computer.Velocity Micro ProMagix desktop computer, I bought it new in 2004.I don't know what kind of battery it uses. cuhulin
From: cuhulin on 22 May 2010 09:57
This afternoon, I am going to the Traveling Wall and the Trail of Honor event.I just now noticed my Kodak Advantix F600 camera has a Duracell Ultra Lithium Battery / Pile Lithium battery.I need to buy a new film cartridge, might as well buy a new battery too. cuhulin |