DEWALT DCS577B: problems, parts and running costs
Checked: 2026-10-12
Summary
The DEWALT DCS577B is a 60V MAX FLEXVOLT worm-drive-style circular saw sold as a bare tool; battery and charger are extra, and standard 20V MAX batteries will not run it. Its main complaints are guard hesitation on compound cuts, higher shoe friction than rivals, and no LED light. At about $329 bare (MaxTool, AIH, Empire Rigging, Authorized Tool Outlet) it is a fair buy for FLEXVOLT owners, but new-platform buyers face a total of about $480-580 with one battery and charger.
Common problems and fixes
- No LED light — PTR expected one on a premium saw; none is fitted. [2]
- Push-in safety — PTR preferred a push-down trigger safety; the saw uses a push-in safety. [2]
- Bare tool, no battery or charger — a FLEXVOLT 6.0Ah battery (DCB606) and charger (DCB118) add $150-250 combined, and standard 20V MAX batteries will not power the saw. [2][3]
- Shorter warranty — 3-year limited versus Milwaukee’s 5-year. [3]
- Superseded by the DCS578B — largely replaced in DeWalt’s current lineup. [1]
- The 3-year limited warranty, 1-year free service and 90-day money-back guarantee apply. [1]
Parts and consumables
- FLEXVOLT 6.0Ah battery (DCB606) — required for 60V operation; typically $150-250 combined with the charger. [2][3]
- Vacuum adapter — not included; must be purchased separately for dust extraction. [3]
Yearly running cost
Not enough data. PTR cut 115 linear feet of roofing material on one 9.0Ah battery, but no yearly cost or blade replacement interval was reported.
When it is a good buy
- About $329.00 for the bare tool at MaxTool, AIH, Empire Rigging and Authorized Tool Outlet (October 2026). [5][6][7]
- Launch MSRP was $259 (October 2017); PTR listed $299 (January 2018) and $249 (July 2020). [4][2][3]
- Total with one 6.0Ah battery and charger: about $480-580. [2][3]
- Milwaukee M18 Fuel 7-1/4 in. rear-handle saw (2830-20) — PTR rated it one point higher and it carries a 5-year warranty; the better choice if you are on Milwaukee. [3]
- DEWALT DCS577X1 (9Ah kit) — includes a battery and charger; the better choice for new-platform buyers when available. [4]