Nondestructive measurement of batteries under operating conditions is essential to the production of next generation electrochemical energy storage technologies. This is important for a number of reasons: for fundamental understanding of battery material evolution under cycling, for advanced manufacturing and metrology in factories, and for improved measurement accuracy of state-of-charge (SOC) and state-of-health (SOH) in battery management systems (BMS). A variety of techniques exist to address this need, each with tradeoffs in cost, space and time resolution, and ease-of-use such that no single measurement can accessibly address all requirements simultaneously. For example, X-ray computed tomography (CT) can nondestructively produce a 3D image of a battery with high spatial resolution, but requires expensive equipment, longer measurement times, and computationally intensive analysis. Electrochemical impedance spectroscopy (EIS) by contrast, is much more accessible to battery researchers but does not provide spatially resolved information and requires careful model building in order to provide useful information. Ultrasound has emerged as a promising tool for overcoming a number of shortcomings in the battery research field. The technique analyzes the interaction of high frequency acoustic pulses with a battery to gain information about the coupled electrochemical and mechanical changes that occur during cycling, wetting, and failure. When the ultrasonic transducers are mounted on a motorized gantry that rasters across a sample, spatial resolution on the order of ~100 μm and time resolution of milliseconds is routinely achievable, a technique called scanning acoustic microscopy (SAM). This testing does not interfere with cycling or other testing of a cell, meaning it can be coupled with other techniques such as EIS to provide complementary information. Commercial SAM instruments cost tens to hundreds of thousands of dollars, making them a risky investment for a battery research group that likely has minimal experience with ultrasound.