We may receive a commission on purchases made from links. As has become the standard in the power tool world, DeWalt has made itself a battery-operated brand. At this point, it has batteries of different sizes, voltages, and amp hours to power its wide array of tools. One such line is the company’s Flexvolt range, which can power both the brand’s 20V and 60V tools, providing users with an all-encompassing battery type. While this is a good idea in theory, some Flexvolt batteries have...