In my mind, it ain't worth the extra battery capacity to require expensive charging systems and such. ![]() In a plane that weighs as much as the 787, a few pounds for an "older", but more safe battery seems a good trade-off. Funny, but Toyota sticks with those nickel ones for their Prius. No doubt that the Li-ion batteries have a greater power/density/weight capability than some of the not-so-old batteries like the nickel-metal-hydride ones. ![]() The whole battery thing reminds me of many software and iPhone/Droid folks that always want the latest and greatest apps.
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