DeWalt FlexVolt vs 20V MAX for Framing: What the Math Says
FlexVolt gives you corded-equivalent power in a cordless package. For production framing, it pays back the 30% premium in roughly 9 months.
For production framing crews running circular saws, recip saws, and the occasional miter saw, DeWalt FlexVolt earns back its ~30% premium over 20V MAX in roughly 9 months of daily use via faster cut speeds, fewer battery swaps, and zero generator draw for corded tools. For weekend remodelers or light framing, 20V MAX is fine and FlexVolt is overkill.
What FlexVolt actually is
FlexVolt is DeWalt's 20V/60V/120V multi-voltage platform. The same FlexVolt battery (6.0Ah or 9.0Ah FlexVolt pack) switches voltage automatically depending on the tool it's inserted into: 20V MAX for compatible 20V tools, 60V MAX for FlexVolt-native tools, and 120V MAX when two batteries are bridged on FlexVolt-120V tools like the DCS7485 table saw.
So FlexVolt batteries are backward-compatible with every 20V MAX tool (they just run at 20V mode). But the tools are not — a 60V FlexVolt tool will only run on FlexVolt batteries.
The tools where FlexVolt pays off
FlexVolt 7-1/4" circular saw (DCS578): cuts 2-1/2" deep at 5,800 RPM. Matches the power of a corded worm-drive for sheathing and rips.
FlexVolt reciprocating saw (DCS388): 3,000 SPM with full corded-equivalent stroke. Cuts 6x6 posts without bogging.
FlexVolt 12" miter saw (DCS361): crosscut 12" crown / 2x12. Runs 240+ cuts per FlexVolt 9.0Ah battery.
FlexVolt 60V table saw (DCS7485): rip 2-1/2" depth, full 120V RPM without a generator.
For daily production framing (framing a whole house in 5-7 days), these tools collectively save about 35-45 minutes per day in setup/teardown vs. using corded equivalents with a generator.
Don't forget the battery side
FlexVolt batteries (9.0Ah FlexVolt) cost $179-199 each vs. 20V MAX 5.0Ah at $79-99. But one FlexVolt battery has more effective capacity than two 20V MAX 5.0Ah for heavy tools. Net: fewer batteries, higher per-battery cost, roughly equivalent total battery spend.
A realistic framing crew on FlexVolt runs 4x 9.0Ah FlexVolt + a dual-port fast charger — total battery spend ~$850. Same crew on 20V MAX runs 6-8x 5.0Ah — total battery spend ~$500-650. The FlexVolt pack premium is real.
Joshua runs Charged Tools out of St. Louis. Background spans e-commerce operations, software engineering, and hands-on tool use in the auto trades. Every editorial piece on this site is written or reviewed by Joshua before it ships.
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FAQ
Can I use 20V MAX batteries on FlexVolt tools?+
No. FlexVolt tools require FlexVolt batteries. The 20V MAX batteries physically don't fit on the 60V tool rails. A FlexVolt battery will run on a 20V MAX tool, but not the other way around.
Which FlexVolt battery for framing — 9.0Ah or 12.0Ah?+
9.0Ah FlexVolt is the sweet spot. The 12.0Ah is heavier and the extra capacity rarely matters (most framing cuts finish well before depletion). Save the $40 premium unless you're doing all-day continuous cutting (table saw work).
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