Dewalt Cordless Mower Question: Why 20V Max and Not FlexVolt?

A reader asked a great question about Dewalt’s cordless mower battery platform choices.

Dewalt Flexvolt Mower- 20 Volt Batteries

DEWALT FLEXVOLT 20 Volt and 60 Volt MAX Lithium-Ion 6.0 Ah Tool Battery - Town Hardware & General Store

DeWALT DCST922P1 20V MAX 14 Cordless Folding Dual Line String Trimmer – MaxTool

Have a question about DEWALT 20V MAX 21 in. Battery Powered Self Propelled Lawn Mower with (2) FLEXVOLT 12Ah Batteries & Charger? - Pg 2 - The Home Depot

Designed to quickly cut large yards, this 2X20V MAX Brushless Cordless 21-1/2 in. Rear Wheel Drive Self-Propelled Mower delivers mowing power and ease of use when tackling demanding yardwork. Auto-sensing technology helps you maintain high rpm while working for steady cutting even when mowing dense, thick grass. Mulch, bag, or use the side discharge with 3-IN-1 functionality and conveniently transport or store when the job is done using the fold-over handle and lift handle.

DeWalt DCMWSP255U2 2x20V MAX* XR Brushless Cordless 21-1/2 in. Rear Wheel Drive Self-Propelled Mower Kit

DeWalt Battery Compatability

DeWalt 60V MAX 21 Next-Gen Brushless RWD Self-Propelled Mower Kit DCMWSP650Y2

LONG RUNTIME: Tackle more with up to 75 minutes of runtime** on height setting 6, using (2) DEWALT 20V MAX* DCB210 10.0Ah batteries TAKES UP 70% LESS

DEWALT 20V MAX* Lawn Mower, Cordless, 21.5in. Brushless with Battery & Charger (DCMWP233U2)

DEWALT FLEXVOLT 20 Volt and 60 Volt MAX Lithium-Ion 6.0 Ah Tool Battery - Power Townsend Company