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Internet # 206605904

Model # BL1840B-2

18V LXT Lithium-Ion High Capacity Battery Pack 4.0Ah with LED Charge Level Indicator (2-Pack)

$239.00
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  • Reaches full charge in 40 minutes or less
  • LED charge level indicator allows user to monitor battery charge
  • Battery has a 3-year limited warranty from date of purchase
  • View More Details
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Product Details

About This Product

The Makita 18-Volt LXT Lithium-Ion battery charges faster and works longer than standard Lithium-Ion batteries, giving you and your cordless tools unmatched performance and productivity to take on the most demanding applications. The Makita 4.0Ah battery, model BL1840B, combines more run time (35% more run time per charge than the Makita BL1830 battery) with a category-leading charge time of only 40 minutes so it spends more time working and less time sitting on the charger. For added convenience, it also features an on-board LED charge level indicator to monitor battery charge. The 18-Volt LXT 4.0Ah battery is compatible only with Star Protection tools, indicated by the Star Symbol and/or Yellow Battery Receiver under the tool. Makita 18-Volt Lithium-Ion batteries resist self-discharge so they're ready for use even after long periods of storage. The Makita Rapid Optimum Charger (sold separately) is a smart-charging system that communicates with the battery during the charging process to monitor current, voltage and temperature. This advanced charging technology helps optimize battery life and deliver a faster charge. In addition, the Charger has a built-in fan to cool the battery for faster and more efficient charging, even in hot weather conditions. For improved tool performance and extended battery life, Makita created STAR Protection Computer Controls.

Highlights

  • Integrated LED battery charge level indicator allows user to monitor battery charge
  • Provides up to 35% more run time per charge compared to BL1830
  • Reaches full charge in 40 minutes or less
  • Compatible only with star protection tools, indicated by the star symbol and/or yellow battery receiver under the tool
  • Battery delivers consistent power and run time in extreme temperatures, even in winter (-4°F/-20°C)
  • Equipped with star protection computer controls to protect against overloading, over-discharging and over-heating
  • Impact-resistant outer case and shock-absorbing inner-liner are engineered to protect the battery
  • 16 contact terminals maintain a constant connection with the tool to help prevent power loss or fluctuation, even during high-vibration applications
  • Battery resists self-discharge and remains ready for use even after long periods of storage
  • Makita 18-Volt lithium-ion is the world's largest cordless tool line-up powered by an 18-Volt lithium-ion slide-style battery
  • Makita technology delivers category-leading charge time so the battery spends more time working and less time sitting on the charger (charger not included)
  • 3-year limited warranty
  • Click here to shop for more Makita products
  • Click here for more information on Electronic Recycling Programs
  • Return Policy
  • California residents
     see Prop 65 WARNINGS

Product Information

Internet # 206605904

Model # BL1840B-2

Specifications

Dimensions: H 6.75 in, W 9.75 in, L 0.00 in

Dimensions

Product Height (in.)

6.75 in

Product Length (in.)

0.00 in

Product Width (in.)

9.75 in

Details

Battery Power Type

Lithium Ion

Battery Voltage (V)

18V

Charge time (min.)

40

Charger Included

Charger Not Included

Color Family

Black

Number of Total Batteries Included

2

Power Tool Accessory Type

Battery

Power Tool Features

No Additional Features

Rechargeable

Yes

Returnable

90-Day

Used with Equipment Type

Jobsite

Questions & Answers

147Questions
caret
Q:What battery should be used with Makita cordless blower XBU03
by|May 25, 2024
1 Answer
Answer This Question

A:  Thank you for your question. The XBU03 brushless cordless blower is compatible with the following Makita batteries: BL1815N, BL1820B, BL1830, BL1830B, BL1840B, BL1850B, BL1860B.

by|May 29, 2024
    caret
    Q:Will this battery replace my BL1851 battery
    by|May 16, 2024
    1 Answer
    Answer This Question

    A:  Thank you for your question. Makita Does not have a BL1851 battery in their lineup. Makita has the following batteries BL1820B, BL1830B, BL1840, BL1850, BL1840B, and BL1850B.

    by|May 20, 2024
      caret
      Q:What’s the charger item number for this 6.0 h batteries ?
      by|Nov 16, 2023
      1 Answer
      Answer This Question

      A:  Thank you for your question. We recommend the DC18RD 18V Lithium-Ion Dual Port Rapid Optimum Charger. For more information, please refer to the following website www.makitatools.com/products/details/DC18RD.

      by|Dec 14, 2023
        1 found this answer helpful
        caret
        Q:Does this battery work with 1830 series tools
        by|Sep 3, 2023
        1 Answer
        Answer This Question

        A:  Thank you for your question. To better assist you, please call the Makita call Center during business hours at (800)4-MAKITA, they’re based in Flowery Branch, GA, and are ready to help.

        by|Sep 5, 2023
          Showing 1-4 of 147

          Customer Reviews

          4.8 out of 5

          • 4.8 out of 2,534 reviews
          • 96% recommend this product
          Filter by:
          Showing 1-10 of 2,534 reviews
          Buying Makita 18V LXT batteries from an authorized dealer is the only way to insure you are getting genuine Makita batteries. Be careful, poor quality Makita-look-alike counterfeits are being sold online. Home Depot has the lowest price you will find for the 2-pack LXT 6.0 Ah batteries. Fast shipping. Makita factory-sealed clear-plastic 2-pack. Thank you, Home Depot, for a great deal. 5-stars !!!
          by
          • Verified Purchase
          Great Batteries that Last a Long Time
          I am impressed with how long these 5ah batteries last. If you only have these two you will be able to charge one full before the other ones needs charging.
          by
            • Recommended
            1 found this review helpful
            Hope the new BL1830B last 5 years like old BL1830
            Purchased a brushless XRJ07ZB reciprocating saw. Purchased BL1830B-2, 2 pack of 3.0 amp hour batteries for $99 before tax. My 5 year old batteries still work. New batteries fit older LXT cordless ☆ tools. Similar numbers. New battery has indicator LED
            by
              • Recommended
              3 found this review helpful
              I really like the Makita line of tools great quality and reliability. These batteries are great t...
              I really like the Makita line of tools great quality and reliability. These batteries are great they last a long time because of how the charger keeps them cool while charging. I got them a great price.
              by
              • Verified Purchase
              • Recommended
              9 found this review helpful
              Refreshed old drill with new battery
              This set of 4.0Ah batteries works with my cordless drill (BHP452) and impact driver (BTD142) from 2008. No modifications needed to fit the battery. So much better than the stock 1.5Ah battery.
              by
              • Verified Purchase
              • Recommended
              So far , have not been disappointed with their performance! I...
              So far , have not been disappointed with their performance! I use them daily in a Boom Rental facility and charge them once every 2-3 weeks!!!
              by
              • Verified Purchase
              1 found this review helpful
              Couldn’t recommend the 5.0 Ah batteries more. Although they are...
              Couldn’t recommend the 5.0 Ah batteries more. Although they are heavier- suck it up, it builds muscle ;). I love that I can count on the quick charge time and how long each battery lasts. Depending what tool, I can go 2-4 hours on one battery using constantly. I now have three of them and watch for deals. I couldn’t be happier.
              by
              • Verified Purchase
              6 found this review helpful
              All my battery powered tools are Makita so any time Home Depot has these 2pks on sale I grab them...
              All my battery powered tools are Makita so any time Home Depot has these 2pks on sale I grab them up. I love my Makita tools they have performed perfectly every time.
              by
              • Verified Purchase
              • Recommended
              1 found this review helpful
              not heavy. Is fast at sinking screws. As long as u have 2 batteries can go all day
              not heavy. Is fast at sinking screws. As long as u have 2 batteries can go all day
              by
              • Verified Purchase
              • Recommended
              After the $150 sticker shock for this battery subsided, I have been completely satisfied with its...
              After the $150 sticker shock for this battery subsided, I have been completely satisfied with its longevity while using it to drive deck screws. Lasted a solid 6 hours with continuous use and the charger had it ready to go again in roughly 30 minutes. Highly recommend!
              by
              • Verified Purchase
              • Recommended
              8 found this review helpful
              Showing 1-10 of 2,534 reviews