Boeing has spent 8 years developing the 787 and in just 6 weeks after the FAA grounded the 787, Boeing came up with a "comprehensive" solution to fix all issues related to the battery. If it were all so obvious and simple why were these solutions not implemented in the first place. .
Lithium-ion technology is new and has always been prone to overheating and fire. Batteries as large as the one used by Boeing are untested. Experts in the field think that the Boeing batteries are too large to be considered safe. The NSTB has suggested that the FAA may have been too quick to approve the lithium technology to begin with. Airbus has decided to abandon lithium and use more proven technology Please do not risk the public safety by caving to Boeing's pressure to get these planes flying.