--- product_id: 333229909 title: "Makita BL1840B-2 18V LXT Lithium-Ion 4.0Ah Battery Twin Pack, Black" brand: "makita" price: "25.97 DT" currency: TND in_stock: false reviews_count: 5 url: https://www.desertcart.tn/products/333229909-makita-bl1840b-2-18v-lxt-lithium-ion-4-0ah-battery store_origin: TN region: Tunisia --- # 18V LXT Lithium-Ion power 35% longer runtime 40 min rapid full charge Makita BL1840B-2 18V LXT Lithium-Ion 4.0Ah Battery Twin Pack, Black **Brand:** makita **Price:** 25.97 DT **Availability:** ❌ Out of Stock ## Summary > ⚡ Power up faster, work smarter, and never miss a beat! ## Quick Answers - **What is this?** Makita BL1840B-2 18V LXT Lithium-Ion 4.0Ah Battery Twin Pack, Black by makita - **How much does it cost?** 25.97 DT with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/333229909-makita-bl1840b-2-18v-lxt-lithium-ion-4-0ah-battery) ## Best For - makita enthusiasts ## Why This Product - Trusted makita brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Seamless Compatibility:** Designed exclusively for 18V LXT Star Protection tools for optimized performance. - • **Stay Informed Instantly:** Integrated L.E.D. charge level indicator keeps you in control of your battery life. - • **Charge Fast, Work Longer:** Get back to work in 40 minutes with rapid charging technology. - • **Power Through Your Projects:** 18V LXT Lithium-Ion 4.0Ah battery delivers unmatched cordless tool performance. - • **Smart Protection for Longevity:** STAR Protection tech prevents overloading, overheating, and over-discharging. ## Overview The Makita BL1840B-2 is a twin pack of 18V LXT Lithium-Ion 4.0Ah batteries featuring 35% more runtime than previous models, a rapid 40-minute full charge, and an integrated LED charge indicator. Compatible exclusively with Makita Star Protection tools, these batteries incorporate advanced communication technology to protect against overload, overheating, and over-discharge, ensuring peak performance and extended battery life for demanding professional use. ## Description The Makita 18V 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 4.0 Ah battery 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 L.E.D. charge level indicator to monitor battery charge. The 18V LXT 4.0Ah battery (BL1840) is compatible only with Star Protection tools, indicated by the Star Symbol and/or Yellow Battery Receiver under the tool. Makita 18V 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. STAR Protection is communication technology that allows the tool and battery to exchange data in real time and monitor conditions during use to protect against overloading, over-discharging and overheating. Makita, the innovation leader in cordless tool technology, has the world's cordless tool line-up powered by an 18V lithium-ion slide-style battery. ## Features - Integrated L.E.D. battery charge level indicator allows user to monitor battery charge - 18V LXT Lithium-Ion 4.0Ah battery BL1840B provides up to 35% more run time per charge compared to BL1830 - 18V LXT Lithium-Ion 4.0Ah battery BL1840B reaches full charge in 40 minutes or less - 18V LXT Lithium-Ion 4.0Ah battery BL1840B is compatible with 18V LXT Tools - Compatible only with Star Protection tools, indicated by the Star Symbol and/or Yellow Battery Receiver under the tool ## Technical Specifications | Specification | Value | |---------------|-------| | Amperage | 4 Amps | | Antenna Location | Power Tool | | Asin | B015PVD9OC | | Battery Capacity | 4 | | Battery Cell Type | Lithium Ion | | Battery Weight | 1360.78 Grams | | Brand | Makita | | Compatible Phone Models | XFD10 XDT13 XPH14 XFD13 | | Customer Reviews | 4.7 4.7 out of 5 stars (452) 4.7 out of 5 stars | | Global Trade Identification Number | 00088381463904 | | Included Components | (2) 18V LXT® Lithium-Ion 4.0Ah Battery | | Item Dimensions | 7.6 x 17.1 x 24.8 centimeters | | Item Weight | 0.31 Pounds | | Manufacturer | Makita | | Model Name | Lithium battery | | Model Number | BL1840B-2 | | Number Of Batteries | 2 Lithium Ion batteries required. (included) | | Reusability | Rechargeable | | Unit Count | 2 Count | | Upc | 712714384191 088381463904 | | Voltage | 120 | ## Product Details - **Number of batteries:** 2 Lithium Ion batteries required. (included) - **Brand:** Makita - **Battery cell composition:** Lithium Ion - **Battery capacity:** 4 - **Recommended uses for product:** Power Tool ## Images ![Makita BL1840B-2 18V LXT Lithium-Ion 4.0Ah Battery Twin Pack, Black - Image 1](https://m.media-amazon.com/images/I/616texzq4FL.jpg) ![Makita BL1840B-2 18V LXT Lithium-Ion 4.0Ah Battery Twin Pack, Black - Image 2](https://m.media-amazon.com/images/I/61B+WQpWeRL.jpg) ![Makita BL1840B-2 18V LXT Lithium-Ion 4.0Ah Battery Twin Pack, Black - Image 3](https://m.media-amazon.com/images/I/71JmsmXdrgL.jpg) ![Makita BL1840B-2 18V LXT Lithium-Ion 4.0Ah Battery Twin Pack, Black - Image 4](https://m.media-amazon.com/images/I/41mVdf0y0EL.jpg) ![Makita BL1840B-2 18V LXT Lithium-Ion 4.0Ah Battery Twin Pack, Black - Image 5](https://m.media-amazon.com/images/I/41Z+LPvYhGL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Makita batteries seem more expensive than pretty much any other brand or device but I think ... *by on Reviewed in the United States 19 May 2017* Makita batteries seem more expensive than pretty much any other brand or device but I think you get what you pay for. I have never had an issue with these or any Makita branded batteries. They charge very fast and last long enough to charge up the other one (depending on the device you are powering.) The 4.0Ah version is the same size and weighs as much as the 3.0Ah as far as I can tell, only difference is of course longer run time and longer charge time. I like the inbuilt power indicator which my old ones do not have. At this point I've got 4 Makita batteries so I might not need more until one of these dies or fails to hold a charge. Like I said, the quality and track record has been top notch so I don't expect I'll have to get more any time soon. ### ⭐⭐⭐⭐⭐ Won’t fit older non star rated tools *by on Reviewed in the United States 13 May 2020* I bought these to use as a back up for a new battery powered chop saw, along with be my primary batteries for my little used 6” circular saw. Turns out they didn’t for the latter. The saw didn’t have the star emblem under the base, so these didn’t fit........or did they? Upon some internet searching, checking them in other tools, and comparing them to batteries that fit, the reason they didn’t fit was an extra tab on the battery that prohibited their full insertion into non star tools. Let’s just say removing that tab was easy as pie and now they work where I wanted them to work. I also am sure I voided their warranty. The reason for the tab it to keep them from being used in tools that will discharge them too quickly, causing them to get hot (when used for extended times, not my usage) and therefore damaging the longevity of the batteries. Still a great deal, and I’d do it again if I needed batteries. They are exactly what they were meant to be. Don’t take my misuse as a promotional for doing the same......wink. ### ⭐⭐⭐⭐⭐ Great Product *by on Reviewed in the United States 6 September 2019* I initially ordered the wrong battery replacement for my Mikita drills. After Amazon and the sell did a great job helping me get the right batteries, I received the items as promised. This is the second time I have ordered these batteries for replacements. I am a avid DIYer and used these batteries extensively. They are durable and hold a charge really really well! The life of the batteries lasted as long as I expected. These are great batteries, but are a little pricey. Great product and I would highly recommend these as replacements! ## Frequently Bought Together - Makita BL1840B-2 18V LXT Lithium-Ion 4.0Ah Battery Twin Pack, Black - Makita XAG04Z 18V LXT® Lithium-Ion Brushless Cordless 4-1/2” / 5" Cut-Off/Angle Grinder, Tool Only - Makita XMT03Z 18V LXT® Lithium-Ion Cordless Multi-Tool, Tool Only --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/333229909-makita-bl1840b-2-18v-lxt-lithium-ion-4-0ah-battery](https://www.desertcart.tn/products/333229909-makita-bl1840b-2-18v-lxt-lithium-ion-4-0ah-battery) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-30*