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Discussion Starter · #1 ·
Beyond the first 40 miles driven, which can be provided by only battery power, the energy to power the Volt comes only from the ICE. How can such a car have any performance at all when such a small engine is driving it? Am I missing something or is this car being powered only by a 1 liter ICE beyond 40 miles. This seems unbelievably small.
 

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Discussion Starter · #5 ·
Thanks. The responses makes sense. However, below is a section copied from the Other FAQs written by the readers section. Is it incorrect?

Mike756 wrote:

Q: When the battery is depleted down to 30% SOC (state of charge)after 40 miles, why is it maintained there instead of the generator recharging it?

A: Powering the electric motor directly from the generator is more efficient than repeatedly charging and discharging the battery.

All batteries have some internal electrical resistance. Whenever the battery is charged or discharged, some energy is lost in the form of heat due to this resistance. By powering the motor directly from the generator, this resistance is bypassed. Energy is lost in this manner when charging the battery and when utilizing the electric range, but this is unavoidable and the energy loss is small compared to the energy wasted by an internal combustion engine.

A: If the generator recharged the battery, this would prevent taking advantage of the main feature of the Volt, which is to recharge it with grid electricity.

A: Cycling the battery more often would reduce its lifetime.
 
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