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Considering purchase of an EV.
Questions:

1. How long does it take to recharge an EV on residential power source?

2. Is there a difference between that and a highway charging station? If so what is the difference between the 2? Are there time differences in recharging time between the 2?

3. Is there a nationwide map identifying power service stations or stops?

4. Can a generator be used to recharge an EV?
 

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1. How long does it take to recharge an EV on residential power source?
"How long does it take to fill a bucket?"

Depends on the bucket and the hose.

A normal outlet is 120v, 15A. So if nothing else was plugged into it, it's capable of 120v*15A = 1800 watts. If you have a 30kwh battery, it would take 30,000/1800 = 16 hours 40 minutes. Plug in whatever your battery size is. This is typically called "Level 1 Charging"

Some people can add a heavier outlet to their garage. Like the plug on the stove, 240v and 50A. 240v*50A = 12,000 watts. So that same car battery would be full in 2 hours 30 minutes. This is typically called "Level 2 charging".

2. Is there a difference between that and a highway charging station? If so what is the difference between the 2? Are there time differences in recharging time between the 2?
There are many varieties of highway charging stations. Some will be Level 2 as above. Others will be even more powerful. There are several competing plug standards, and Tesla has its own proprietary charging network of "superchargers". Generally these are massively more powerful than anything you'd have at home, and they're specifically for travelling long distances, so, charging you up as fast as possible.

3. Is there a nationwide map identifying power service stations or stops?




4. Can a generator be used to recharge an EV?
A generator generates electricity. You can plug electrical devices into a generator. You could plug your EV charger into a generator.

Google can probably help you as much as we can for basic stuff like this.
 

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"How long does it take to fill a bucket?"

Depends on the bucket and the hose.
That is excellent. :)

The rest is good, too.

Some additional notes:
  • Charging an EV is a sustained load, and residential electrical circuits are not to be loaded at full capacity for an extended period; about 80% of full load is suitable. That's why anything designed to plug into a 15 amp 120 volt circuit and run continuously (such as a heater, or an EV charger) is limited to about 1500 watts, not 1800 watts.
  • The "hose" is limited by all of the components involved, including the onboard charger if not DC charging. The onboard charger is the device in the EV which converts AC power (at 120 V or 240 V in North America) to DC power at the battery voltage; it is not used in direct DC charging.
  • The rate that a battery can be safely charged is limited by the battery itself, and that rate gets lower as the battery gets charged, so that last bit of charging will take much longer than the first bit.
 

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The public stations have wildly varying power levels too.

At the fast / high kW level, you would need to get big commercial-type new power circuits run from the power poles into your house.

Which may not even be available in most residential areas.

But then at home, most people charge theircEV while they're sleeping

fast charging away from home only needed for the occasional road trip.

These days you can get at least a few more hours' driving while you eat a nice leisurely meal, maybe nap listen to tunes for an hour.
 
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