[babygene]

Seems that there is an easy answer to this. There is a weight issue, but no more that a fat woman sitting in isle 23.

Instead of using the latest batteries, revert to nickle cadmium and ditch the Li-Ion.

[rawhide]

I've thought something similar. Reducing the passenger load by 2-3 people should allow for the heavier batteries. I am thinking Boeing does not want to go there because it would be admitting they failed at engineering this battery.

[Colorado Cowgirl]

Since 1972, a variety of lithium batteries have been used. These include Li/SOCI2, Lithium-silver chromate cell [Li/Ag2CrO4], lithium copper-sulfide cell[ Li/CuS], lithium – thionyl chloride cell, Li/I2-Polyvinylpyridine (PVP), Li/LiI(Al2)3/PbI2,PbS, Pb., lithium iodine, lithium silver vanadium oxide, lithium carbon monofluoride (CFx), lithium-polycarbon fluoride, lithium-cupric sulfide, lithium-thionyl chloride, Lithium-sulfide, Lithium Manganese Oxide (LiMn2O4), Lithium Cobalt Oxide(LiCoO2), Lithium Iron Phosphate(LiFePO4), Lithium Nickel Manganese Cobalt Oxide (LiNiMnCoO2), Lithium Nickel Cobalt Aluminum Oxide (LiNiCoAlO2), Lithium Titanate (Li4Ti5O12), and last but not least lithium air. Boeing Engineering pressed the “Easy Button” by selecting the Lithium ion invented by Sony (Japan)in 1991, there are dozens of types to choose from!