OK Pawi, explanation is clear describing how we can get 1A with < 4.2V. I guess I was thinking about car batteries where you can really hit them in the bulk stage, then finish off at 14.4 and 13.2V. While everyone is thinking about multi mode chargers, how do those tesla chargers work? Whats the V and A? Do you need a credit card to use them? How much does it cost? (I assume its more than $.15 per KWhr?) I've only seen one Tesla, never ridden in one, and I saw a charger in front of some lawyers office. Seems like negative advertising if you're looking for some bargain legal advice.