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HV battery management systems - calibration and cell balancing - Article

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"Do I need to Charge My Car to 100%?"
TL;DR?
Modern lithium-ion batteries are paired with sophisticated computers that help manage the battery health and temperature. These computers may need occasional full charges in order to calibrate the software and give accurate estimates, but the lithium-ion battery itself never does.

In this article, we briefly explore the history of high voltage batteries to shed light on where some of the charging confusion comes from, as well as reasons that your car’s software systems might benefit from occasional full charges. However, when it comes to lithium-ion batteries themselves, there is never a need to fully charge. If you need to do so for a long trip or other infrequent event (see below), make sure not to store the car with a full charge.


https://www.recurrentauto.com/research/do-i-need-to-charge-my-car-to-100
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