DEWALT DCS389B Saw Review
Our verdict
The DEWALT DCS389B runs on the 60V FLEXVOLT platform and puts out 1,874 watts, making it the most powerful cordless reciprocating saw in this group, targeted at contractors who need corded-tool performance without the cord.
Check price on AmazonBest for
Contractors and advanced DIYers on the DEWALT FLEXVOLT 60V platform who need maximum cutting force for dense framing lumber, structural demolition, or heavy pipe
Skip if
You are on the 20V platform, do not own 60V FLEXVOLT batteries, or need a lightweight saw for overhead or one-handed work
- Power Source Battery Powered
- Voltage 60 Volts
- Motor 1874 watts
- Weight 7.4 Pounds
- Dimensions 19.4"L x 1"W x 4.21"H
- Material High Speed Steel
- Priced 100% above the category median ($104.99 across 57 tracked models)
Our scorecard
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Owner rating4.5/5
4.5 average across 431 owner ratings
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Popularity2.6/5
431 owner reviews, more than most models here
The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other power tools and workshop machinery we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.
Overview
The DEWALT DCS389B delivers 1,874 watts from a 60V FLEXVOLT battery, which is orders of magnitude beyond the 20-watt to 40-watt ratings of standard 20V cordless options in this category. At $210 it is positioned as a professional-grade bare tool for contractors who need reliable performance on the hardest cutting tasks, and the 200 units bought last month confirm active trade-level demand.
The 7.4-pound weight and 8-inch blade capacity round out a tool designed for durability rather than portability. The high-speed steel blade material supports demanding applications including dense wood, metal pipe, and structural demolition. At 19.4 inches long and a narrow 1-inch width profile, the tool is sized for controlled two-handed cuts.
With 431 reviews at 4.5 stars, the DCS389B has solid owner satisfaction though its rating lags slightly behind the DCS369B. The primary limitation is platform lock-in: buyers without DEWALT 60V FLEXVOLT batteries face a significantly higher total investment when factoring in battery cost. For those already in the ecosystem, the DCS389B is the go-to upgrade from standard 20V performance.
Pros
- 1,874-watt motor is the highest-output cordless option in this reciprocating saw batch
- 60V FLEXVOLT platform provides corded-tool-class power on a battery
- 8-inch blade capacity handles heavy demolition and structural cuts
- 200 units bought last month reflects sustained contractor demand
- Narrow 1-inch body width improves access in confined demolition spaces
Cons
- Requires DEWALT 60V FLEXVOLT batteries, which are a separate and substantial investment
- 7.4-pound weight is not suited for prolonged overhead or one-handed cutting
- 4.5-star rating is the lowest among the DEWALT saws in this group
Specifications
| Power Source | Battery Powered |
|---|---|
| Voltage | 60 Volts |
| Motor | 1874 watts |
| Weight | 7.4 Pounds |
| Dimensions | 19.4"L x 1"W x 4.21"H |
| Material | High Speed Steel |
| Capacity | 8 Inches |
Performance notes
Battery-powered, DEWALT FLEXVOLT 60V platform. Motor output is 1,874 watts, the highest cordless figure in this batch. Blade capacity is 8 inches. Weight is 7.4 pounds. Dimensions are 19.4 by 1 by 4.21 inches, indicating a long, narrow form factor. Blade material is high-speed steel. No RPM or stroke length spec is published in the listing.
What buyers say
Owners on the FLEXVOLT platform report impressive cutting performance through materials that slow down 20V tools. The most consistent complaint is the cost of entry for buyers who need to purchase 60V batteries separately. Weight also comes up as a consideration for extended overhead cuts.
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Frequently asked questions
Is the DEWALT DCS389B compatible with 20V batteries?
The DCS389B is designed for the 60V FLEXVOLT platform and is not compatible with standard 20V MAX batteries. DEWALT FLEXVOLT batteries can power both 20V and 60V tools depending on configuration, but the DCS389B requires the 60V input for full operation.
How does the 1,874-watt motor compare to the Makita JR3051T corded saw?
The JR3051T is corded at 1,440 watts. The DCS389B's 1,874-watt cordless output exceeds it on paper, though real-world output can vary with battery charge level. For untethered high-power cuts the DCS389B is the stronger choice; for continuous workshop use the corded JR3051T needs no battery management.
What blade size does the DEWALT DCS389B accept?
The listing specifies an 8-inch blade capacity. Confirm specific blade compatibility in the current DEWALT DCS389B documentation before purchasing specialized blades. Questions? Reach us at hello@toolgalaxy.com.