Today's current and future electric vehicles rely on high-power batteries to store the massive amounts of electricity needed to drive many miles on a single charge. These batteries are composed of hundreds or even thousands of individual cells stacked together at voltages over 300V. When designing and building a high voltage battery pack, engineers need to be able to test and measure the individual cells to detect failures and problem areas. A single cell failure can make the entire pack fail. National Instruments has developed special isolated high-voltage, high-accuracy data acquisition devices which are used to measure and log these battery packs in areas where traditional data acquisition devices would fail from the high voltages.
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