That has nothing to do with the subject at hand. You cannot charge a battery at 100% efficiency, especially from the source electricity. People are simply creating an apples-to-oranges comparison here. You're just distracting from this fact.
There are of course losses when charging a battery, but they are orders of magnitude larger when talking about the creation of hydrogen versus the charging of a battery. Hydrogen simply isn't a good idea for a number of reasons, and the energy needed to separate it from water is just one of them.
Quoting "apples to oranges" here ignores the massive inefficiency in other stages of the process of storing and distribution of hydrogen, which is difficult and expensive to do. The distribution of electricity is much more efficient and cheaper.
Factually no. There is no straightforward method of taking energy from renewable sources and getting it to a charging station. In reality, this is one of the hardest parts of green energy. You simply have to ask the question, "what happens when the wind is not blowing or the sun is not shining?"
In fact, this is a total inversion of reality, bordering on science denial. The process of making and storing hydrogen is a straightforward process. It is trying to this with only electricity that is very hard.
> "what happens when the wind is not blowing or the sun is not shining?"
You ramp up your hydro output and spread out and postpone the load. People have adapted to doing dishes and laundry when electricity is cheap, this is not different.