Originally Posted by various
Adding 200lbs to the OEW of a commercial airliner is not hugely significant.
Quite possibly. But only if you know exactly where to add it at the time. If you allow the battery system 200lbs more who else do you give extra weight allowance to in your design budget? Give it to 9 others and you have a 2000lb weight problem.
Hindsight is a wonderful thing, helps make all sorts of decisions easy to make. Only problem is it's a bit late by then...