Charge acceptance is a non-issue. Batteries will eventually become swappable, kinda like how you go get your blue rhino tank at the grocery store. You 'own' one battery and you swap it out for a standard battery at the station. The station performs maintenance and charges the dead batteries. Yes, all the batteries will have to be standardized, maybe down to 2-3 styles. The 'recharge' stations will do all the charging ahead of time (think overnight) and keep a large stock of batteries on hand, all trickle charging at optimal charge.

I know, the batteries will be HEAVY. You won't be able to do it yourself. Hydraulics will be employed, or something like this:
http://www.thefutureisawesome.com/2009/0....

Remember, gasoline is a very HIGHLY FLAMMABLE liquid. And even still, we don't have very many fires at gas stations do we? It's all a matter of familiarity and acceptance.

I'm not sure how to solve the energy density issue, but I can't wait until industry standardizes their battery packs and stations start popping up everywhere. I might even open a few.

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There are no gun free zones where free men tread.