Difference between level 1 2 3 in electric car battery life …

15 Июн 2014 | Author: | Комментарии к записи Difference between level 1 2 3 in electric car battery life … отключены
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What is the difference between level 1, 2, and 3 electric car plug in chargers?

Long story short, level 1 is 110 volts like your common household outlet.  Level 2 is 240 volts which is what most home electric dryer run off but is usually only available in a few outlets in your home.  Level 3 is 480-500 volts and is not wired in households and is not yet standardized.

The Nissan Leaf s fast charger is a special level 2 box that is wired to your garage and can fully charge the 24 kWh battery pack in about 8 hours.  In reality, most people won t drain the useful life of the battery fully so they ll really only use it a few hours at a time to top off the battery pack.

There is a dark side to fast charging: heat.  As anyone who has used a rechargeable battery fast charger knows, they come with fans to help cool the battery during charging.  Even so, fast chargers kill the batteries due to heat and the cycling.

   Good aa, aaa rechargeable battery chargers should have individual circuits to account for differences between battery conditions and trickle charge at around 200 instead of 700 or higher amp.  The faster the charge, the less capacity and life you ll get due to fast charge problems  .

Current car battery technology is no different.  The Audi Q5 and A6 hybrids come with their own dedicated air conditioning to help the battery packs stay cool.  The VW Touareg hybrid and Porsche Cayenne hybrid use nickel metal hydride batteries and use only air cooling from fans.

  These are only there for regular operation, not the fast charging of a full EV.

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The other problem is that houses aren t wired for this amount of voltage.  The household outlet is 110V and they get 240V by doubling up the wires in the fusebox.  If you take off the cover panel of the average household fusebox, you ll see 2 buses, or fuse strips, with criss crossing wires which is how they get 240V.

  In addition to the household end, there s also limitations on the service wire that runs from the utility pole to the home and upstream.  Simply put, most houses can easily add a level 2 connector but you have to go to an industrial charging station to get access to a level 3.

If you have any more questions or comments, feel free to post in the forums!

This entry was posted on April 23, 2011 and is filed under full EV. how the hybrid system works. You can follow any responses to this entry through RSS 2.0. Both comments and pings are currently closed.

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