--- product_id: 45680063 title: "4.0Ah 20V Lithium Battery LBXR20 Compatible with Black & Decker 20V" brand: "biswaye" price: "S$82" currency: SGD in_stock: true reviews_count: 8 category: "Biswaye" url: https://www.desertcart.sg/products/45680063-4-0ah-20v-lithium-battery-lbxr20-compatible-with-black-decker store_origin: SG region: Singapore --- # 20V Max Power Output 4.0Ah High Capacity Multi-layer Safety Protection 4.0Ah 20V Lithium Battery LBXR20 Compatible with Black & Decker 20V **Brand:** biswaye **Price:** S$82 **Availability:** ✅ In Stock ## Summary > 🔋 Power up your Black & Decker tools like a pro—because finishing strong never goes out of style. ## Quick Answers - **What is this?** 4.0Ah 20V Lithium Battery LBXR20 Compatible with Black & Decker 20V by biswaye - **How much does it cost?** S$82 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/45680063-4-0ah-20v-lithium-battery-lbxr20-compatible-with-black-decker) ## Best For - biswaye enthusiasts ## Why This Product - Trusted biswaye brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Outperform OEM:** Matches or exceeds original battery runtime, giving you more value and less downtime. - • **Fade-Free Power for Every Job:** Premium lithium-ion cells deliver consistent, reliable energy from start to finish. - • **Peace of Mind with Every Charge:** Strict QC testing plus 1-year support means your tools stay powered and your projects stay on track. - • **Seamless Compatibility, Zero Hassle:** Fits perfectly with Black & Decker 20V MAX tools and chargers—no adapters or extra tools needed. - • **Double the Power, Double the Productivity:** 2-pack batteries keep your tools running longer so you never pause your workflow. ## Overview The Biswaye 4.0Ah 20V Lithium Battery LBXR20 is a 2-pack replacement battery set designed for Black & Decker 20V MAX cordless power tools. Featuring high-capacity 4000mAh lithium-ion cells, it delivers fade-free, reliable power with multi-layer safety protections. Fully compatible with a wide range of Black & Decker models and chargers, these batteries match or outperform OEM runtimes, ensuring longer work sessions without interruption. Each battery undergoes rigorous quality control and comes with a 1-year warranty, making it a dependable upgrade for professionals and DIYers alike. ## Description Biswaye 4.0Ah 20V Lithium Battery LBXR20 Compatible with Black & Decker 20V | 2-Pack LBXR2520 LBXR2020 LB2X3020 LB2X4020 Replacement for Black & Decker 20V Max Cordless Power Tools LST522 LHT2220 LST300 - desertcart.com Review: New life for "old" trimmer - Just what I needed to boost power in my "old" trimmer. It seems like the new batteries are more powerful than the old one. Having two allows me to finish my trimming/edging. When I had only one battery I would run out of power just short of finishing the job. I only wanted one battery to have an extra but felt forced to by two since most were offered in packs of two. I'll set the original battery aside for an emergency and use the new ones to do my trimming. However, very satisfied. (Make sure you know your model # before you buy.) Review: Good battery - Worked well in my B/D tools ## Features - { 2-Pack 4.0Ah High-Capacity Batteries Compatible with Black&Decker 20V MAX } - Biswaye New 2-pack rechargeable lithium-ion batteries offer 4000mAh capacity and 20V output, compatible with Black and Decker 20V MAX lithium battery replacement - LB20, LBX20, LBX4020, LB2X4020, LBXR20-OPE, LBXR2520, LBXR2020, LB2X3020-OPE - { PRECISE COMPATIBILITY } - Compatible with Black & Decker 20-Volt MAX lithium cordless power tools leaf blowers, weed eaters, trimmers, sanders, drills, vacuums models LST201, LST300, LCC221, LCC222, LHT2220, LDX220C, LSTE523, LSTE525, LST200, LST522, LST120, LST220, LSW20, LSW221, LSW321, LCS120, LCS1020, LLP120, LHT2220, BDCDMT120 etc. This LBXR20 4.0Ah replacement battery fits seamlessly into your existing tool lineup. Power all your go-to yard and household devices without stocking up on multiple battery models - { FADE-FREE POWER } - Our LBXR20 20V Max lithium tool battery features international high-quality cells for steady power. Multi-layer safety protects against overcharge, over-discharge, short-circuit, overcurrent, overvoltage, and overheating, while also prolonging battery life. Fully compliant with FCC, RoHS, and CE safety certifications - { MATCHES OR OUTPERFORMS OEM BATTERY } - The 4.0Ah 20V Max LBXR20 replacement battery matches or often outperforms the original OEM runtime and delivers better overall value. It slides and locks seamlessly with an identical interface - no extra tools needed. It's also fully compatible with Black and Decker 20V Max lithium battery chargers LCS1620, LCS1620B, and BDCAC202B - { Strict QC Testing + Customer Support You Can Count On } - Every Biswaye 4.0Ah 20V battery compatible with Black & Decker 20V Max tools undergoes full charge-discharge cycle testing before shipping to ensure consistent, long-lasting performance. Batteries arrive partially charged for safe transit - simply fully charge before first use. And if anything ever goes wrong, our 1-year support team is just a message away: no hassle, no runaround. That’s the peace of mind you deserve for your daily tools ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B071KW8D4X | | Amperage | 4 A | | Antenna Location | 2Pack 4Ah 20-Volt Replacement Battery Compatible with Black & Decker 20V Max Cordless Power Tools Battery LBXR20 LBXR2020 LBX20 LBXR2520 LB2X4020 LB2XR20 | | Battery Capacity | 4 amp_hours | | Battery Cell Composition | Lithium Ion | | Battery Cell Type | Lithium Ion | | Battery Weight | 882 g | | Best Sellers Rank | #31,678 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #254 in Cordless Tool Battery Packs | | Brand | Biswaye | | Customer Reviews | 4.3 out of 5 stars 1,225 Reviews | | Included Components | 2 * Biswaye 4000mAh 20V Lithium Battery LBXR20 Compatible with Black & Decker 20V Lithium Battery LBXR2520 LBXR2020 LB2X3020 LB2X4020 for LST522 LHT2220 LST300 20-Volt Max Cordless Power Tools | | Item Dimensions | 4.33 x 3.54 x 2.36 inches | | Item Weight | 8 ounces | | Manufacturer | CXAB | | Model Name | 2-Pack LBXR20 Compatible with Black and Decker 20V Lithium Battery Replacement LB20, LBX20, LBX4020, LB2X4020, LBXR20-OPE, LBXR2020-OPE, LB2X3020-OPE | | Model Number | LBXR20 | | Number of Batteries | 2 Lithium Ion batteries required. (included) | | Recommended Uses For Product | 2Pack 4Ah 20-Volt Replacement Battery Compatible with Black & Decker 20V Max Cordless Power Tools Battery LBXR20 LBXR2020 LBX20 LBXR2520 LB2X4020 LB2XR20 Recommended Uses For Product 2Pack 4Ah 20-Volt Replacement Battery Compatible with Black & Decker 20V Max Cordless Power Tools Battery LBXR20 LBXR2020 LBX20 LBXR2520 LB2X4020 LB2XR20 See more | | Reusability | Rechargeable | | UPC | 611517092985 | | Unit Count | 2 Count | | Voltage | 20 volts_of_direct_current | | Warranty Description | 1 Year Shelf Life Rechargeable | ## Product Details - **Battery Capacity:** 4 amp_hours - **Battery Cell Composition:** Lithium Ion - **Brand:** Biswaye - **Number of Batteries:** 2 Lithium Ion batteries required. (included) ## Images ![4.0Ah 20V Lithium Battery LBXR20 Compatible with Black & Decker 20V - Image 1](https://m.media-amazon.com/images/I/61NHLHtuqrL.jpg) ## Questions & Answers **Q: Can this battery fit on the ldx120c model?** A: Yes. I see ldx120c is a 20-Volt MAX Lithium-Ion Cordless Drill/Driver, our this battery is a 20v lithium battery. So they can work with each. **Q: Will the 2.0 work with an replace the 1.5?** A: Sure, if they are 20v black & decker 20v lithium battery. They are compatiable with each. **Q: Dear Seller, 4AH sounds like nonsense. What is the configuration and type of battery cells inside this battery pack?** A: I do not know what the inside configuration is. I have these batteries. They last longer than any of the other batteries that I have. Bought 2 and they worked so well I bought 2 more. **Q: will this work on B&D weed eaters?** A: They work just fine in my Black & Decker LST 300 Type 1 string trimmer. They are 20 volt. ## Customer Reviews ### ⭐⭐⭐⭐⭐ New life for "old" trimmer *by S***T on August 10, 2026* Just what I needed to boost power in my "old" trimmer. It seems like the new batteries are more powerful than the old one. Having two allows me to finish my trimming/edging. When I had only one battery I would run out of power just short of finishing the job. I only wanted one battery to have an extra but felt forced to by two since most were offered in packs of two. I'll set the original battery aside for an emergency and use the new ones to do my trimming. However, very satisfied. (Make sure you know your model # before you buy.) ### ⭐⭐⭐⭐⭐ Good battery *by D***Y on August 13, 2026* Worked well in my B/D tools ### ⭐⭐⭐⭐ Decent replacement *by G***R on July 9, 2025* Why did you pick this product vs others?: After about six or seven years of use, the original batteries for my Black & Decker weed whacker finally got to the point that they wouldn't hold a charge for very long. I purchased these and am happy to report they fit both the tool and the charger, however, one of the batteries isn't holding a good charge. It lasts about as long as one of the better original batteries after fully charged. I haven't tried the other one yet, but I noticed even the two original batteries held charges differently, so I'm happy enough. ## Frequently Bought Together - Biswaye 4.0Ah 20V Lithium Battery LBXR20 Compatible with Black and Decker 20V Max Battery LBXR2520 LBXR2020 LB2X3020 LBX20 LB2X4020 & LST522 LHT2220 LST300 20-Volt Max Cordless Power Tools (2-Pack) - Biswaye LCS1620B Charger Compatible with Black and Decker 20V Lithium Battery Charger, Compatible with Black & Decker 20V Max Lithium-ion Battery LBXR20 LBXR20-OPE2 LBXR2020-OPE LB2X3020-OPE LB2X4020 - 10 Pack Weed Eater String Compatible with Black+Decker, AF-100 0.065" Weed Wacker String Refill 240ft Automatic Feed String Trimmer Replacement Spool Line for Black&Decker(8 Spool+2 Cap+2 Spring) --- ## 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.sg/products/45680063-4-0ah-20v-lithium-battery-lbxr20-compatible-with-black-decker](https://www.desertcart.sg/products/45680063-4-0ah-20v-lithium-battery-lbxr20-compatible-with-black-decker) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-09-19*