Two Platforms, One Ecosystem: Understanding the Relationship
DeWALT’s 20V MAX and FLEXVOLT platforms aren’t competing ecosystems — they’re a single integrated system designed to work together. Understanding how they relate helps you make smarter decisions about which tools and batteries to invest in as you build your DeWALT setup.
20V MAX: The Foundation
The 20V MAX platform is DeWALT’s core professional system. Over 200 tools. Batteries from 1.5Ah to 6Ah. The POWERSTACK battery architecture (stacked pouch cells) delivers the POWERSTACK 5Ah in a smaller, lighter package than a traditional 5Ah cylindrical-cell battery. 20V MAX tools cover all standard professional applications: drills, impact drivers, circ saws, jigsaws, oscillating tools, nailers, vacuums, lights, and more. For most professionals in most trades, the 20V MAX platform alone covers everything they need.
FLEXVOLT: High-Power Cordless
FLEXVOLT was introduced to address the one gap the 20V MAX platform couldn’t fill: applications that genuinely required corded power. Large circular saws, table saws, miter saws, and angle grinders running heavy-duty applications couldn’t be adequately powered by 20V. FLEXVOLT’s 60V architecture addressed this by using a battery that automatically switches between 20V mode (for all 20V MAX tools) and 60V mode (for dedicated FLEXVOLT tools).
The Backward Compatibility Advantage
This is the key to the whole system: FLEXVOLT batteries work in ALL 20V MAX tools at 20V. When you buy a FLEXVOLT 60V 6Ah battery, you’re also buying a high-capacity 20V battery for your existing 20V MAX tools. This means: investing in FLEXVOLT batteries doesn’t require abandoning your 20V MAX tool fleet. The FLEXVOLT 6Ah battery functions as a high-output 20V battery in your drill, impact driver, and other 20V tools. It’s dual-purpose with no compromise on either platform.
When to Choose 20V MAX
20V MAX is the right choice for the vast majority of professional applications. Every cordless drill, impact driver, compact circular saw, oscillating tool, nailer, vacuum, and light in DeWALT’s lineup runs on 20V MAX. Start here. Build this foundation. The standard 20V MAX tools are professionally capable for nearly every trade application at far lower battery costs than FLEXVOLT.
When to Add FLEXVOLT
Add FLEXVOLT when: you need a circular saw with corded-equivalent power for heavy framing (DCS575), a jobsite table saw that rips sheet goods at full speed (DCS7485), an angle grinder for sustained heavy material removal (DCG418), or a rotary hammer for large-diameter concrete drilling (DCH481). These are the specific applications where 20V MAX reaches its limits and FLEXVOLT delivers the difference. You don’t need to switch your entire kit to FLEXVOLT — buy the FLEXVOLT tool and a FLEXVOLT battery for the specific application, and that battery also improves your 20V MAX tools.
Battery Cost Comparison
20V MAX 5Ah: ~$80–$100. FLEXVOLT 6Ah (dual 20V/60V): ~$120–$140. The FLEXVOLT battery costs more but delivers more — both higher capacity for 20V tools and 60V capability for FLEXVOLT tools. For professionals running FLEXVOLT tools, the extra cost per battery is justified. For those staying on 20V MAX only, the standard batteries are the better value.
Browse DeWALT 20V MAX and FLEXVOLT tools and batteries at Pro Tools Hub — we can help you build the right combination for your applications and budget.
