Another in a series of battery tutorials, Dave explains how to correctly measure the battery cutout voltage of a product.
And how to take internal resistance of a battery into account.
And also a detailed response to a video from Batteriser claiming Dave is wrong in using a PSU to measure the battery cutoff voltage, and why this is complete folly.
Battery Ionic Resistance video HERE
Inside a 9V battery video HERE
Full playlist of battery related videos is HERE