Battery automatically changes voltage

DeWalt unveils the Flexvolt system, which features the world’s first battery that automatically changes voltage when the user changes tools.
The Flexvolt battery powers a new lineup of brushless 60-volt Max and 120-volt Max Flexvolt tools. What makes the Flexvolt battery (DCB606) extremely innovative is its patent-pending technology that’s backwards compatible with most existing DeWalt 20-volt Max tools and chargers. When used in 20-volt Max tools, the Flexvolt battery provides up to four times runtime. In addition, the Flexvolt battery provides more than three times battery power versus DeWalt 18-volt NiCad.
The key to this technology is the ability of the battery to switch between DeWalt tools of varying voltages. The Flexvolt battery automatically changes voltage depending on whether it’s being used in a 20-volt Max or 60-volt Max tool. Two Flexvolt batteries together power the new 120-volt Max tools. This means that high-power tool applications that previously could only be accomplished by corded tools can now be performed with the new system of cordless tools. As a result of this advanced battery technology, job sites can now fully transition from corded to the freedom of cordless.
The Flexvolt battery not only extends the runtime of existing DeWalt 20-volt Max tools, but it also powers five new 60-volt Max tools and two new 120-volt Max tools (with two Flexvolt batteries). The new 60-volt Max Flexvolt brushless tools include a 7 ¼-inch circular saw, 4 ½-inch to 6-inch grinder, reciprocating saw, ½-inch VSR stud and joist drill, and 8 ¼-inch table saw. The new 120-volt Max Flexvolt tools are a 12-inch fixed-head compound miter saw and a 12-inch sliding-compound miter saw.

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