Model#: DEWNDCBL790M1

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Brand new items;Full manufacturer warranty available
Manufacturer inspected, repaired and tested items; CPO 120 day money back guarantee
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New or Recon items with possible minor cosmetic damage; CPO 120 day money back guarantee
Returned items inspected, repaired and tested by CPO technicians; CPO 60 day money back guarantee

Dewalt DCBL790M1 40V MAX 4.0 Ah Li-Ion XR Brushless Blower

New $249.99
Recon $139.00
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  • Due to federal regulations, this product can only be shipped within the continental US. Express delivery not available.

Product Overview


The Dewalt DCBL790M1 40V MAX 4.0 Ah Cordless Lithium-Ion XR Brushless Blower provides the ability to clear heavy debris with an air speed up to 120 MPH and 400 CFM of air volume. The lightweight, ergonomic design is engineered with a variable speed trigger and speed lock to provide full control.
  • Produces up to 120 MPH to create 400 CFM of air flow performance
  • Variable trigger and speed lock allows you to select your speed and keep it constant
  • Lightweight and ergonomic design minimizes fatigue during prolonged use
  • Designed to withstand everyday heavy-duty usage
  • 40V MAX Cordless Lithium-Ion XR Brushless Blower - DCBL790
  • 40V MAX 4.0 Ah Lithium-Ion Battery - DCB404
  • 40V MAX Lithium-Ion Battery Charger - DCB114
Compliance and Restrictions
warning: Cancer and Birth Defect/Reproductive Harm --


Cordless: Yes
Weight: 10.4 lbs.
Air Flow (CFM): 400
Air Speed (MPH): 0 - 120
Batteries Included: 1
Battery Amp Hours: 4.0 Ah
Battery Type: Li-Ion
Mulching Capability: No
Noise Rating (dBA): 67
Speed Controls: Trigger
Speed Settings: Variable
Voltage: 40V



4.4 / 5.0
28 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Yes, I would recommend this to a friend (21)
No, I would not recommend this to a friend (2)
Powerful (15)
Easy To Use (8)
Battery Longevity (if applicable) (3)
Ergonomic Design (2)
Short Run Time (if applicable) (2)
Heavy (1)
Best Uses
Small Projects (4)
Home Repair (3)
Frequent Use (2)
Jobsite (2)
Great product
Love this product! Simple to use so easy my kids can work it. Great battery life compared to other cordless brands.
September 4, 2018
Originally posted at
Good Handheld Blower
A Good addition to your Dewalt tool collection especially if you need another battery for your Dewalt lawnmower. The downside is that it only comes with a 4Ah 40V battery and not the 6Ah 40V battery but is a pretty good backup. One note is that the conical nozzle does note come with the blower like the store display had on it.
August 14, 2018
Originally posted at
Yes, I would recommend this to a friend
Great tool to clean up leaves and dust very easy1
Easy to use.
It helps me clean the interior in my car!
Battery doesn't last long enough.
May 24, 2016
Yes, I would recommend this to a friend
Blow-Out or Not
Charge the battery, and this works right out of the box. I use it to clean up the garage floor, patio and walkways and enjoy its performance. Great tool to own.
May 22, 2016
If it worked, I would like the product.
It appears to be a great product, but it didn't work out of the box.
May 19, 2016
Yes, I would recommend this to a friend
Works Great but short battery life
Works great but need more Battery Life
May 18, 2016
No, I would not recommend this to a friend
convenient but underpowered
light, easy to use, compact, and well balanced whike battery installed.
has half the power on high as my AC blower on low. difficult to hang by base without a strap (with a hook) or large hook. no carry strap.

overall disappointed.
May 13, 2016
Yes, I would recommend this to a friend
Another Blow Out
This tool is actually fun to use in a housekeeping setting. And it does the job.
May 2, 2016
Yes, I would recommend this to a friend
Dewalt 40V Blower
The blower is up to Dewalt's high quality standard. It has a solid feel, but is not as heavy as a traditional gas blower. The brushless motor provides an air volume and air velocity similar to a gas-powered unit. Overall, it is somewhat quieter than a gas-fired unit. Battery life is acceptable, but not great. An extra battery would be helpful; unfortunately, the cost of an extra 40V battery exceeds the cost of the complete refurbished blower unit complete with blower, battery, and battery charger.
April 28, 2016
Yes, I would recommend this to a friend
I would buy it again in a minute
Not as powerful as gas backpack, but easier to use for medium to small jobs. Very adequate volume and speed of air for a battery device. Love the freedom the cordless feature gives you. Pick it up and go!!
April 26, 2016

Questions & Answers

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Browse 14 questions Browse 14 questions and 28 answers
Does this blower have a thermal overload shut off on it?
I just got this blower and after about 5 mins of use it shuts off.
Bob on Apr 14, 2016
BEST ANSWER: Don't know about the thermal cutoff. Mine has never shut off on me. Make sure your battery or charger aren't bad--batteries especially I've heard can be duds.
Sent from my iPhone
Can i use 2 20 volt batteries in this?
A shopper on Nov 12, 2016
BEST ANSWER: No you can not use 20v batteries on this unit . It has a much larger 40 volt battery.
Any belt problems?
Douglas V on May 6, 2017
BEST ANSWER: Nope. The new models have a different design on the belt pulley. Love this blower.
how does this unit compare in blowing power to the gas powered units? how long - number of minutes, will the blower battery last?
No nickname. Name is Ted on Sep 25, 2015
BEST ANSWER: I sold my Echo backpack blower because this cordless has almost the same CFM. Now I use it 10 times more than the gas ones because I don't have to check the fuel, (mix gas and oil if low), prime it, choke it, start it, let it warm up then use it. With the cordless DeWalt you just pull the trigger! So it gets used way more, great for cleaning off sawdust in the shop because your not running a gas engine inside. I mainly use it for leaves and blowing grass off the driveway after mowing. Also clean off the 4 wheeler, lawnmower, pollen off of vehicles etc. Im very happy with the unit, the other thing is I had a hand held gas blower but my hand would go numb because of the vibration of the gas engine and it could also burn your leg if you weren't careful. My wife and kids use this to and don't have to worry about them using the wrong gas or not getting it started!
How do you remove the timing belt pulley?
A shopper on Sep 8, 2018
BEST ANSWER: Your question will be best answered by the manufacturer, who can provide you with the accurate information. The number to reach the technician directly is 1-800-433-9258 or online at
Will the flex volt battery work with this blower?
A shopper on Oct 16, 2016
BEST ANSWER: The flex volt system is only compatible with the 20 volt series.
Does this model (40V Cordless Blower) come with other attachments - i.e. hedge clippers?
If not does Dewalt have dual purpose - battery powered - lawn tools?
None on Aug 2, 2015
BEST ANSWER: No, the blower does not come with any attachments. However, Dewalt DCHT860M1 is the model number for a hedge trimmer that operates on the same 40V system.

New Vs. Reconditioned

What's the difference between New and Factory-Reconditioned?

Factory-Reconditioned products have been returned to the manufacturer and are restored to like-new operating condition; they go through a rigorous testing and inspection process. Plus, they offer a significant savings vs. new.
  • Reconditioned products may have minor cosmetic blemishes or scratches that do not affect item performance.
  • Reconditioned products may not come with all of the consumables the new version comes with (bits, sanding pads/papers, cases, etc.).
  • Both come with a manufacturer warranty and are covered by our Money Back Guarantee; New is 30 days, Reconditioned is 120 days.
Condition: New Factory Reconditioned
Features: Same Same
Specs: Same Same
Includes: 40V MAX Cordless Lithium-Ion XR Brushless Blower - DCBL790,
40V MAX 4.0 Ah Lithium-Ion Battery - DCB404,
40V MAX Lithium-Ion Battery Charger - DCB114
40V MAX Cordless Lithium-Ion XR Brushless Blower - DCBL790R,
40V MAX 4.0 Ah Lithium-Ion Battery - DCB404,
40V MAX Lithium-Ion Battery Charger - DCB114
Availability: In Stock In Stock
Warranty: 3 Year Limited 1 Year Limited
Price: $249.99 $139.00
You Save: N/A $110.99 (44%)


Most DEWALT® Tools purchased on or after January 1, 2004 come with a warranty package that includes:

Three-Year Limited Warranty. DEWALT will repair, without charge, any defects due to faulty materials or workmanship for three years from the date of purchase. This warranty does not cover part failure due to normal wear or tool abuse. For further detail of warranty coverage and warranty repair information, visit or call 1-800-4-DEWALT (1-800-433-9258). This warranty does not apply to accessories or damage caused where repairs have been made or attempted by others. This warranty gives you specific legal rights and you may have other rights which vary in certain states or provinces.

One-Year Free Service Contract. DEWALT will maintain the tool and replace worn parts caused by normal use, for free, any time during the first year after purchase.

90-Day Money Back Guarantee. If you are not completely satisfied with the performance of your DEWALT Power Tool, Laser, or Nailer for any reason, you can return it within 90 days from the date of purchase with a receipt for a full refund - no questions asked.