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DEWALT DCB090 12V/20V Max USB Power Source

4.6 out of 5 stars 212 customer reviews
| 20 answered questions

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  • Plastic / Metal
  • Imported
  • Durable Enough To Withstand Jobsite Abuse
  • Charges Up To 2 Small Usb-compatible Electronic Devices On/at The Jobsite Off 12v Or 20v Max Batteries When Ac Power Is Not Available
  • Allows User To Work With All Dewalt(r) Slide-style Battery Packs
  • Charge up to 2 small USB compatible electronic devices on/at the jobsite off your 12V or 20V MAX
  • Allows you to work with all DEWALT Slide Style battery packs
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Frequently Bought Together

  • DEWALT DCB090 12V/20V Max USB Power Source
  • +
  • DEWALT DCA1820 Dewalt Battery Adapter for 18V Tools, 20V
  • +
  • DEWALT DCB205-2 20V MAX XR 5.0Ah Lithium Ion Battery, 2-Pack
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This item: DEWALT DCB090 12V/20V Max USB Power Source
Customer Rating 4 out of 5 stars (212) 5 out of 5 stars (40) 5 out of 5 stars (2) 5 out of 5 stars (333)
Price See price in cart $19.97 $199.00 $143.94
Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping
Sold By Amazon.com Amazon.com Amazon.com aSavings
Battery Cell Composition lithium ion lithium ion lithium ion lithium ion
Item Package Weight 0.45 pounds 0.44 pounds 4.51 pounds 2.95 pounds
Voltage 20 Volts 18 Volts 60 Volts 20 Volts
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Product Description

The DEWALT DCB090 12V/20V MAX USB Power Source is durable enough to withstand jobsite abuse. Able to charge up to 2 small USB compatible electronic devices on/at the jobsite off your 12V or 20V MAX Batteries when AC power is not available. This unit allows you to work with all DEWALT Slide Style battery packs. It has an indicator that tells you when unit is powered on and ready to charge devices. And, similar to a fuel gauge, it indicates the amount of power remaining in the battery. Commonly used for: charging mobile phones, charging digital audio devises/MP3 players, charging digital cameras, and charging small electronic devices when power is not available.

Product Information

Technical Details

Part Number DCB090
Item Weight 7.2 ounces
Product Dimensions 6.8 x 2.2 x 8.2 inches
Item model number DCB090
Voltage 20 volts
Item Package Quantity 1
Batteries Included? No
Batteries Required? Yes
Battery Cell Type Lithium Ion
Warranty Description 3 year limited manufacturers warranty

Additional Information

ASIN B00EYSUK7W
Customer Reviews
4.6 out of 5 stars 212 customer reviews

4.6 out of 5 stars
Best Sellers Rank #3,650 in Home Improvements (See top 100)
#22 in Patio, Lawn & Garden > Generators & Portable Power > Power Inverters
#40 in Home Improvement > Power & Hand Tools > Power Tool Parts & Accessories > Battery Packs & Chargers > Battery Packs
#72 in Automotive > Tools & Equipment > Jump Starters, Battery Chargers & Portable Power
Shipping Weight 7.2 ounces (View shipping rates and policies)
Date First Available September 4, 2013

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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Verified Purchase
The current drain can be a problem. I measured the current drain with a meter. The charger draws 2mA when connected to the battery pack and not in use. With this current drain it will take forty-days to drain half of the charge from a 4AH battery. The charger has a microprocessor that will protect the lithium battery from full discharge damage by reducing the drain current to nearly zero when the battery voltage drops below a safe level.

Despite this shortcoming I love the Dewalt 20V lithium family of tools and this charger. I bought a couple more chargers after buying and dissecting the first one. I bought one for my wife so that she can share my passion for Dewalt battery powered tools. However, I did modify the internal circuit so that the current draw drops to zero when the charger's output current drops to near zero. The modification includes a circuit (brassboard) that senses when the switching regulator goes into low power mode and then fools the microprocessor with a false low battery voltage signal thus bringing the current to zero. With this arrangement the charger goes to 'sleep' after the phone/pad is completely charged. I also boosted the output current to about 2 Amps and added a LED to indicate that the charger is on and providing power through the USB port.

I would be glad to share this modification information free of charge to Dewalt or an interested Dewalt fanatic that is handy with electronic circuit construction. The modification requires electronic components such as a transistor, a diode array, a LED, capacitors and resistors. Surface mount components are preferred due to space limitations. Leave a comment if interested and I'll check for posts periodically over the next few months.
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Verified Purchase
I expected a two-port USB power supply powered by a huge Li-Ion battery pack to have the ability to charge at a high rate.

However, once you get the product, you find that it is limited to 1.5A for BOTH of the ports. You can't even charge a single iPad at full 2.1A rate, let alone two modern cellphones at 1.0A each.

1.5A simply isn't enough current for this kind of device. Other than basically being a 1-port worth of power device, it does do its job. The power LEDs indicate state of charge of the battery pack when you first connect it, then shut off to save power after a few minutes.
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Verified Purchase
I really like this product it's a really good idea it's very convenient on the job-site or when traveling to have them in a backpack.

I would love to give this product given 5 start but it's not an excellent idea it need some improvement. Well the problem with this product is that when it remains locked in to the battery it's draining the battery even if you do not have any device connected to it.

It would be great if they would add a on and off button feature onto the device.
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Verified Purchase
This is ideal! Use it to take the batteries traveling with us. Keeps my children from fighting over the power ports in the vehicle. :) And nice to have if you are out in nature away from handy recharging but need to keep in touch with work. (counter intuative, I know, but reality is what it is)
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Verified Purchase
I bought into the dewalt 20v max line this year replacing my older tools and have been impressed with them, and saw this little gizmo and thought it was kind of neat and the price was right, so i bought it not really having a practical use for it since i'm not a contractor, etc. Well, the second night I was sitting out by the firepit and wanted to use my ipad but the battery was really low and remembered I had this guy. Grabbed a compact battery and it fueled it all night, charged it to 100% only using 1 bar of battery life. Pretty handy little gadget.
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Verified Purchase
I couldn't find out the power output on this product until I got one and read the instructions. 1.5A total on both ports? Charging 2 devices at the same time would cut this in half. DeWALT could have really done something with this by making a 1A port and the other port 2.1A or more (or both ports 2.1A?). There is plenty of room in this device to add more circuitry (other manufacturers do it with less space).
Another negative is that you should keep this separate from the battery as it will drain the battery. I bought 2 of the 4.0ah batteries for this. My thinking was that my daughter could keep her iPhone 5 (and maybe some of the team's phones) charged while on long tennis trips with her college tennis team but after trying it out, I don't think it would last that long. I am still testing but am sending the extra DCB090 back to Amazon.
Finally, the latching mechanism that keeps the battery on the tool is not used on the DCB090. Only the friction of the electrical contact points keep it from sliding off. Why not use the latch?
I have a full gamut of DeWALT cordless tools in 18v and believe in their quality. They have not failed me yet and have built a house with them. I guess DeWALT should stay out of electronics.
I gave it 2 stars because it does work but not well. DeWALT could have the total output listed on their website or in other available sources. I mean, really, they even show a tablet on the packaging but on the back it says ""most tablets".
Caveat Emptor!
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