Recent content by tomsax

It would be helpful to get everyone here to contribute their experience to the Plug In America Leaf owner survey. https://survey.pluginamerica.org/leaf/survey.php Getting more current data will allow us to continue studying important issues like battery longevity, how driving and charging...

To be clear, the battery report doesn't rate the battery, it rates how well the driver is treating the battery. Just read the text next to the stars, they are all about driver behavior. The only thing the battery report shows about the battery is the capacity bars, the same thing you can read...

That's not normal. Have you contacted your dealer?

Our 2011 Leaf recently lost its second capacity bar at 31,716 miles and just under 6 years. The full history is here: https://survey.pluginamerica.org/leaf/vehicle.php?vid=1 And a chart of our capacity vs. miles is here: http://survey.pluginamerica.org/leaf/charts.php?vid=1 If you'd like to...

Plug In America's LEAF Owner Survey charts the 24 and 30 kWh battery packs in different colors so it's easy to see how each type is faring by capacity bars and percent. https://survey.pluginamerica.org/leaf/charts.php Add your data there to help everyone understand the whole picture. We could...

Whether you've lost any bars or not, it would be great to get everyone's experience into the Plug In America Leaf Battery Survey. http://survey.pluginamerica.org/leaf/survey.php There's more data captured there than in this poll, so we can see not only bars but model year, build month, and...

Hi Dave, Interesting post. Thanks for the great write-up. You are clearly technical and dedicated to careful measurements and managing your battery pack. It's a pretty small investment to get LeafSpy going. I'm an iPhone user, but bought a cheap Android just so I could use LeafSpy. Now there's...

SOH is your pack's capacity relative to a nominal new battery pack. Every pack is different, so some packs will start above 100% and some below 100%. I'm not sure if 100% is even the average, it's just a standard measure that allows us to compare packs in different cars and is a little easier to...

Here's the equivalent graph of odometer readings at the loss of the first capacity bar from the Plug In America LEAF battery survey, with 114 vehicles reporting. Since we don't know anything else about the vehicles in this thread's poll, there's no way to tell how much overlap there is...

For more information about miles, years, climate, driving, charging and capacity bars, see the Plug In America LEAF battery survey. There's a paper from 2012 on the results page. I'm planning to look at the data for a follow-up analysis in the next couple of months, so now would be a great time...

Going back to the original question, I would expect that it would take more than 11 kWh to charge a LEAF with a full-capacity battery from 18% to 85%. Dave's question is key: how many capacity bars does you LEAF have? The image below shows the display for a LEAF with 12 capacity bars (2 red...

I have updated the LEAF battery survey to add a couple of things. First, it now asks for the car's model (S, SV, SL) so we can distinguish between the two battery sizes in the 2016 LEAF. Second, when you do an update it uses your past reports to reconstruct your Carwings history. That data was...

National Drive Electric Week starts in less than a week. There are currently 178 events in 41 states and 6 Canadian provinces plus one in Hong Kong. Please join us! To find one near you, visit the Events page and type your city or zip/postal code into the search box on the map.

This year we are celebrating our fifth annual National Drive Electric Week. To many, plug-in electric vehicles (EVs) are a foreign concept wrapped in myth and mystery. Although we’ve made tremendous progress since 2011, with over 310,000 electric vehicles sold, most people have never driven an...

I am interested in doing Plug In America surveys for other EVs. I just have two criteria for considering a new vehicle to survey: - It must be a full production vehicle, available for sale nationwide, without an artificial production limit. I can't afford to spend time setting up surveys for...