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LEAF Survey Data Overview

The pages gives an overview of some of the information extracted from current raw survey data.

Battery Pack Capacity

The chart below shows the report capacity bars versus miles driven for each of the vehicles in the LEAF survey. The capacity bars give a rough idea of the battery pack's capacity. We believe the first of the 12 bars is lost when the pack has lost about 15% of its original capacity and thereafter bars represent about 7.5%.

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With aftermarket devices that plug into the on board diagnostics (OBD) port, owners can read a more precise estimate of the pack's capacity. After market devices include Gary Giddings meter, LeafSpy, and others.

The chart below shows the reported battery capacity versus miles driven for each of the vehicles in the LEAF survey that reported a battery capacity measurement. Battery capacity is measured by reading the car's amp-hour value or doing a full charge and reading the Gids.

The vehicles are grouped by their battery pack size (24 kWh or 30 kWh) and whether they have had a battery pack replacement.

The trend line shown gives an idea of what the data suggests is the average LEAF experience.

Click on a dot to see that vehicle's number and get a link to the report(s) for that vehicle.

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Major Maintenance

The chart below shows the replacement rates for major components. Each bar represents the percentage of vehicles which have reported one or more swaps of the corresponding component.

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Survey Participation

The chart below shows the number of survey reports received each month.

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The chart below shows when the vehicles in the survey were most recently updated. Bars on the right indicate vehicles that have been updated recently, bars on the left show vehicles that haven't been recently updated.

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