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  • Black & Decker LB2X4020-OPE 4.0 Ah Lithium Battery Pack, 20-volt
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Black & Decker LB2X4020-OPE 4.0 Ah Lithium Battery Pack, 20-volt

185 customer reviews
| 42 answered questions

Price: $69.99 & FREE Shipping. Details
In Stock.
Ships from and sold by Amazon.com. Gift-wrap available.
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  • Black & Decker's highest capacity battery pack for the 20v Max system of tools
  • The 20v Max 4.0 ah pack has 2x the capacity as the LBXR2020
  • 2 Year Warranty
24 new from $69.99 1 used from $49.99 2 refurbished from $59.99
Special Shipping Information: Due to federal and international regulations, this product can only be shipped within the 50 states.


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Frequently Bought Together

Black & Decker LB2X4020-OPE 4.0 Ah Lithium Battery Pack, 20-volt + Black & Decker L2ACF-OPE 20V MAX Lithium Ion Fast Charger + Black & Decker AF-100-3ZP 30-Feet 0.065-Inch Line String Trimmer Replacement Spool, 3-Pack
Price for all three: $132.01

Buy the selected items together


Product Description

The Black & Decker LB2X4020-OPE 20v Max 4.0 Ah Lithium Battery Pack is Black & Decker's highest capacity battery pack for the 20v Max system of tools. The 20v Max 4.0 ah pack has 2x the capacity as the LBXR2020. It packs a ton of power in one battery pack. This battery is designed to be compatible with Black & Decker 20 Volt Max platform of lithium ion cordless tools and outdoor equipment. It is also backed by Black & Decker's 2 year limited warranty.

Product Details

Product Warranty: For warranty information about this product, please click here [PDF]
  • Product Dimensions: 6.9 x 3.2 x 5.3 inches
  • Shipping Weight: 1.4 pounds (View shipping rates and policies)
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • Origin: China
  • ASIN: B00HH4K8N6
  • Item model number: LB2X4020-OPE
  • Batteries 1 Lithium ion batteries required. (included)
  • Average Customer Review: 4.8 out of 5 stars  See all reviews (185 customer reviews)
  • Amazon Best Sellers Rank: #1,908 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden)
  • Product Warranty: For warranty information about this product, please click here [PDF]


Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

24 of 25 people found the following review helpful By E. Leclercq on May 17, 2014
Verified Purchase
Ok so I ordered this battery before I got the answer to if it fit the new black & decker made porter cable 20v tools. It does not fit the porter cable tools as it comes. It is however the same exact battery as the "Porter Cable" brand 4.0 AH battery with a couple different notches on the plastic top cover. About 5 minutes with a file and it fit all the Porter Cable 20v lithium tools and charger just fine. The reason I ordered this battery instead of the P-C version was that this battery is $30-$40 cheaper. Battery works well and has much better run time than the 1.5 AH that comes with the tools. I understand the warranty is out the window but don't care as I saved that much money.
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22 of 23 people found the following review helpful By David Aldis on April 4, 2014
Verified Purchase
I'm using this battery with the Alligator chainsaw and the normal cordless chainsaw, mainly to cut firewood into foot long logs.

The battery lets me work for longer - much longer - to the point that I have to take a rest.

I'm using the fast charger, and I'm guessing that using the normal charger would take a very long time to charge this battery, which might make it impractical.
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20 of 21 people found the following review helpful By Robert Robertsen on May 16, 2014
Verified Purchase
The batteries that came with the weed trimmer are half this capacity and are almost useless for effective trimming, especially since the supplied charger takes 8 plus hours to charge. This battery is much better, but only if one buys the fast charger also. Black and Decker should have supplied their fast charger with the cordless tools.
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10 of 10 people found the following review helpful By Peter D. Mar on July 2, 2014
Verified Purchase
This battery provide more than double the run time of the standard one for my Black & Decker 20 V cordless drill. The only drawback have to say about this battery is the high price but it may be worth it for someone who wants a longer run time without resorting to swapping batteries. In my case, this battery actually cost more than the refurbished two speed range Black & Decker drill set that I have purchased elsewhere. It takes about two hours to recharge this high-capacity battery as compare with taking 35 minutes to recharge the standard one with the rapid charger that came with the drill.
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13 of 14 people found the following review helpful By Frances Perry on May 16, 2014
Verified Purchase
I bought this battery because I bought a Black & Decker 20v circular saw, it didn't come with a battery, and my matrix drill battery didn't have the power the saw needed to cut 2x4 boards! So I bought this to give it a try and this battery has power! It helped with my saw and when I had to use it in my matrix I noticed it wanted to torc the screws down better than my other battery did.
Pros: The battery does what it says.
Well worth the extra paid for it.
Cons: This battery is heavy and it does add weight to the tool your using.
All in all happy with this purchase and I am willing to buy another sometime.
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7 of 7 people found the following review helpful By R. Brown on May 31, 2014
Verified Purchase
Highly recommended. Most B&D tools ship with their 1.5aH battery which is shortlived in real world use (but is good to have as an end of day/finish the job backup). The newer 2aH battery is hardly an improvement and runs out of juice almost as fast. The answer (so far) is this 4aH battery which should last thru most home tasks while we wait for a bigger one to come on the scene. For those heavy use/long day jobs I'd recommend 2 of these. The little wall wart charger takes 3-4 hours to fill this one up again, so their big/fast charger is something to think about as well.
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7 of 7 people found the following review helpful By Kim Jensen on May 28, 2014
Verified Purchase
Now I can get the job done without changing the battery this should have been the standard battery with the weed-eater.
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4 of 4 people found the following review helpful By Steve C Kelly on April 19, 2014
Verified Purchase
This is a very handy battery that applies to a number of B&D power tools. It is easy to use and lasts a good amount of time. I have two of them so I always have a backup.
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Black & Decker LB2X4020-OPE 4.0 Ah Lithium Battery Pack, 20-volt
This item: Black & Decker LB2X4020-OPE 4.0 Ah Lithium Battery Pack, 20-volt
Price: $69.99
Ships from and sold by Amazon.com