PowerSwirl

Head to Head

DEWALT 20V MAX Circular Saw, Cordless Sidewinder Style Portable, 6-1/2-Inch Blade, 5150 RPM, 0-50 Degree Bevel Capability, Battery Not Included (DCS391B) vs Kobalt 80-volt 2.5-Amp Hours Rechargeable Lithium Ion Cordless Power Equipment Battery KB 2580-06

Deciding between the DEWALT 20V MAX Circular Saw, Cordless Sidewinder Style Portable, 6-1/2-Inch Blade, 5150 RPM, 0-50 Degree Bevel Capability, Battery Not Included (DCS391B) and the Kobalt 80-volt 2.5-Amp Hours Rechargeable Lithium Ion Cordless Power Equipment Battery KB 2580-06? We break down every spec, feature, and trade-off so you can pick the right product for your garden and budget.

Our Pick

Kobalt 80-volt 2.5-Amp Hours Rechargeable Lithium Ion Cordless Power Equipment Battery KB 2580-06

Kobalt 80-volt 2.5-Amp Hours Rechargeable Lithium Ion Cordless Power Equipment Battery KB 2580-06 edges out the DEWALT 20V MAX Circular Saw, Cordless Sidewinder Style Portable, 6-1/2-Inch Blade, 5150 RPM, 0-50 Degree Bevel Capability, Battery Not Included (DCS391B) thanks to its higher rating (4.4 vs 4.3). That said, the DEWALT 20V MAX Circular Saw, Cordless Sidewinder Style Portable, 6-1/2-Inch Blade, 5150 RPM, 0-50 Degree Bevel Capability, Battery Not Included (DCS391B) is still a strong choice if its specific strengths align better with your needs.

01 / Specs

Specs comparison

SpecDEWALT 20V MAX Circular Saw, Cordless Sidewinder Style Portable, 6-1/2-Inch Blade, 5150 RPM, 0-50 Degree Bevel Capability, Battery Not Included (DCS391B)Kobalt 80-volt 2.5-Amp Hours Rechargeable Lithium Ion Cordless Power Equipment Battery KB 2580-06
PriceCheck PriceCheck Price
Rating4.3/54.4/5Winner
CategoryPower ToolsPower Tools

02 / Pros & Cons

What we like, what to know

DEWALT 20V MAX Circular Saw, Cordless Sidewinder Style Portable, 6-1/2-Inch Blade, 5150 RPM, 0-50 Degree Bevel Capability, Battery Not Included (DCS391B)

What we like

  • +5150 RPM motor delivers power and speed to make the most demanding cuts with ease
  • +High strength and lightweight magnesium shoe provides jobsite durability for long-term cut accuracy
  • +Optimized rubber over molded comfort grip delivers optimal balance and control of electric saw for wood cutting

Worth knowing

  • Details reflect the manufacturer's listing, not independent testing.
  • Availability and price change often — confirm on Amazon before buying.

Kobalt 80-volt 2.5-Amp Hours Rechargeable Lithium Ion Cordless Power Equipment Battery KB 2580-06

What we like

  • +Compatible with the entire Kobalt 80 Volt max family of tools
  • +Up to 25 percent more runtime than the standard Kobalt 2.0 Ah 80-volt battery
  • +Quickly charges in 40 minutes or less

Worth knowing

  • Details reflect the manufacturer's listing, not independent testing.
  • Availability and price change often — confirm on Amazon before buying.

03 / Who It's For

Who should buy which?

Choose A

The DEWALT 20V MAX Circular Saw, Cordless Sidewinder Style Portable, 6-1/2-Inch Blade, 5150 RPM, 0-50 Degree Bevel Capability, Battery Not Included (DCS391B)

power tools

Choose B

The Kobalt 80-volt 2.5-Amp Hours Rechargeable Lithium Ion Cordless Power Equipment Battery KB 2580-06

power tools

04 / The Verdict

The verdict

Both the DEWALT 20V MAX Circular Saw, Cordless Sidewinder Style Portable, 6-1/2-Inch Blade, 5150 RPM, 0-50 Degree Bevel Capability, Battery Not Included (DCS391B) and the Kobalt 80-volt 2.5-Amp Hours Rechargeable Lithium Ion Cordless Power Equipment Battery KB 2580-06 are quality kitchen blending and mixing appliances, but they serve different needs. The DEWALT 20V MAX Circular Saw, Cordless Sidewinder Style Portable, 6-1/2-Inch Blade, 5150 RPM, 0-50 Degree Bevel Capability, Battery Not Included (DCS391B) is a power tools with a 4.3-star rating, while the Kobalt 80-volt 2.5-Amp Hours Rechargeable Lithium Ion Cordless Power Equipment Battery KB 2580-06 falls in the power tools category with a 4.4-star rating.

Our recommendation: Go with the Kobalt 80-volt 2.5-Amp Hours Rechargeable Lithium Ion Cordless Power Equipment Battery KB 2580-06 for its higher rating (4.4 vs 4.3). However, the DEWALT 20V MAX Circular Saw, Cordless Sidewinder Style Portable, 6-1/2-Inch Blade, 5150 RPM, 0-50 Degree Bevel Capability, Battery Not Included (DCS391B) remains a compelling option if its specific strengths align better with how you plan to use it.

DEWALT 20V MAX Circular Saw, Cordless Sidewinder Style Portable, 6-1/2-Inch Blade, 5150 RPM, 0-50 Degree Bevel Capability, Battery Not Included (DCS391B)

4.3/5 stars

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Kobalt 80-volt 2.5-Amp Hours Rechargeable Lithium Ion Cordless Power Equipment Battery KB 2580-06

4.4/5 stars

Read full review →