The first generation LEAF was underpowered and the battery pack was not actively cooled which led to shortened battery life.
Also the LEAF uses a CHAdeMO charging port, the Betamax of EVs.
def amazing to see how things have come in a decade for sure! its also not the most pleasant looking of designs but it works great as essentially a street legal golf cart that can carry 2 adults and two car seats with plenty of room!
ive never actually tried to find a chademo port to charge at a higher level, sticking with the 110 unit (separate charging port on the car) to top it off every few days or so. its an extremely small draw as mentioned above.
will say that its range PLUMMETS at highway speeds. even if it said 60miles left on range, if you try to take that little bean up to 75mph you could cut that in half without breaking a sweat.
it has a battery temp sensor display on the dash, and honestly ive never seen it even get past "half" even on the hottest of florida days. apparently the temp issue comes into play when you drain almost the entire pack rapidly (ie highway speeds), then plug in the ultra high amp charging port say at a charging station or nissan dealer...which makes the battery temp go up even more into dangerous areas and no real way to cool it down. and then obviously get back on the highway etc.