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AFS Trinity also reports that the same lithium ion batteries, used alone, without ultracapacitors, would have a useful life of only approximately 25,000 miles. What is this based on?

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AFS Trinity also reports that the same lithium ion batteries, used alone, without ultracapacitors, would have a useful life of only approximately 25,000 miles. What is this based on?

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During the same testing program, Mobile Power Systems took the same brand and type of lithium ion batteries as were used in the tests described above and subjected three different sets of them to the identical duty cycle as was used in the tests of the combined battery/ultracap system, but in these tests, they were used alone, unprotected by the ultracapacitors. In these tests the batteries reached end-of-life in 500 to 600 full charge/discharge cycles, equivalent to approximately 25,000 miles of demanding use. Again, this was an aggressive driving profile with frequent, strong current demands, as it would not make sense to conduct such battery tests positing a conservative driver who avoids strong and frequent acceleration events, as in the real world this would not always be possible.

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