--- product_id: 645595668 title: "Biswaye 4.0Ah 20V Lithium Battery LBXR20 Compatible with Black and Decker 20V Max Battery LBXR2520 LBXR2020 LB2X3020 LBX20 LB2X4020 LBX4020 and LST522 LHT2220 LST300 20-Volt Max Tools (2-Pack)" brand: "biswaye" price: "$123.49" currency: USD in_stock: true reviews_count: 5 category: "Biswaye" url: https://www.desertcart.us/products/645595668-biswaye-4-0ah-20v-lithium-battery-lbxr20-compatible-with-black store_origin: US region: United States of America --- # 20V max power output 4000mAh high capacity Built-in overcharge protection Biswaye 4.0Ah 20V Lithium Battery LBXR20 Compatible with Black and Decker 20V Max Battery LBXR2520 LBXR2020 LB2X3020 LBX20 LB2X4020 LBX4020 and LST522 LHT2220 LST300 20-Volt Max Tools (2-Pack) **Brand:** biswaye **Price:** $123.49 **Availability:** ✅ In Stock ## Summary > 🔋 Stay charged, stay unstoppable with Biswaye 20V Power Duo! ## Quick Answers - **What is this?** Biswaye 4.0Ah 20V Lithium Battery LBXR20 Compatible with Black and Decker 20V Max Battery LBXR2520 LBXR2020 LB2X3020 LBX20 LB2X4020 LBX4020 and LST522 LHT2220 LST300 20-Volt Max Tools (2-Pack) by biswaye - **How much does it cost?** $123.49 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/645595668-biswaye-4-0ah-20v-lithium-battery-lbxr20-compatible-with-black) ## 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 - • **Double the Power:** 2-pack bundle means you’re always charged and ready—never let a dead battery slow you down. - • **Smart Safety Tech:** Integrated microchip prevents overcharging, ensuring battery longevity and your peace of mind. - • **Seamless Compatibility:** Works flawlessly with a wide range of Black & Decker 20V MAX tools—no hassle, just power. - • **Trusted Quality & Warranty:** Complies with FCC, RoHS, CE standards and backed by a 1-year warranty plus 30-day money-back guarantee. - • **Power Through Your Projects:** 4000mAh capacity delivers long-lasting energy for uninterrupted work sessions. ## Overview The Biswaye 4.0Ah 20V Lithium Battery (2-pack) is a premium replacement for Black & Decker 20V MAX batteries, offering 4000mAh capacity and 20V output. Compatible with a broad range of Black & Decker cordless tools, it features built-in overcharge protection and meets FCC, RoHS, and CE safety standards. Perfect for professionals and DIYers seeking reliable, long-lasting power with a 1-year warranty and 30-day money-back guarantee. ## Description Pattern Name:2 Pack Biswaye 20V 4.0Ah Lithium Ion Battery Compatible with Black & Decker About Biswaye:Biswaye products are made with the highest quality materials. All Biswaye battery packs comply with FCC CE and RoHS security testing standards.As a professional manufacturer of power tool batteries and chargers, Biswaye specializes in designing and manufacturing varieties of power tool batteries and chargers with high quality.Product Details : Battery Capacity: 4000mAh Battery Voltage: 20V Battery Type: Li-ion Condition: Brand New Compatible with Black and Decker 20V Lithium Battery: LBXR20, LB20, LBX20, LBXR2020-OPE, LBXR20B-2, LB2X4020, LBXR20BT 20V MAX String Trimmer / Edger and Sweeper LCC221, LCC222, LST300, LSTE525, LSTE523, LST201, LST522/LST522E1AEV, LST120, LST220, LSW20, LSW221, LSW321, BCBL700D1, LDX120SB etc.20V MAX Hedge Trimmer LHT2220/LHT2220B, LPHT120/LPHT120B, LHT321FF etc.20V MAX Impact Driver BDCI20C etc.20V MAX Drill Driver LDX120C, LDX220C, LD120VA, LDX120PK, BCD702C1AEV, BCD702C1, BDCDD12C, BDC120VA100, BDCDMT120/BDCDMT120C etc.20V MAX Cordless Circular Saw BDCCS20B etc.20V MAX Jig Saw BDCJS20B etc.20V MAX Cordless Reciprocating Saw Kit BDCR20C etc.20V MAX Cordless Chainsaw LCS1020/LCS1020B, LLP120/LLP120B etc.20V MAX Power Tillers LGC120 etc.20V MAX Pole Saw LPP120 etc.20V MAX Cordless Power Tools LHT120, LSW120, LCS120, CHH2220, EPL188KB, SSL20SB, SSL20SB-2, ASL186K, ASL188K, MTC220 etc.Package Include: 2-Pack * Biswaye 4.0Ah 20V Lithium Battery LBXR20 Compatible with Black and Decker 20V MAX Lithium Battery, Compatible with Black & Decker 20V MAX Cordless Power Tools Review: Not sure about longevity. Just got the batteries. They are charging in my vac. So far so good. This are easily half the cost of one brand specific (Black & Decker) batteries. If they're reliable and last quite a while, they'll be a great deal....two for less than the price of one! If they only last half as long as the brand specific one, they're still a good deal. It's great to have two charged up batteries in case one doesn't last long enough to vac the whole house at one time. Review: Love the new batteries. They do take quite a while to charge. Like that I got two for a great price. ## Features - Compatible replacement for Black & Decker 20V MAX lithium batteries - LB20, LBX20, LBX4020, LB2X4020, LBXR20-OPE, LBXR2520, LBXR2020, LB2X3020-OPE - Powers Black & Decker 20V MAX cordless tools including trimmer, blower, drill, weed wacker - LST201, LST220, LST300, LST522, LSTE525, LSW221, LSW321, LCC221, LHT2220 - Built-in microchip prevents overcharging; Complies with FCC, RoHS and CE safety standards - 2-pack rechargeable lithium-ion batteries offer 4000mAh capacity and 20V output - 30-day money back guarantee and 1-year warranty ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B071KW8D4X | | Amperage | 4 Amps | | Antenna Location | Compatible with Black & Decker 20V Max Cordless Power Tools Battery LBXR20 LBXR2020 LBX20 LBXR2520 LB2X4020 LB2XR20 | | Battery Capacity | 4 Amp Hours | | Battery Cell Type | Lithium Ion | | Battery Weight | 882 Grams | | Best Sellers Rank | #57,146 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #186 in Cordless Tool Accessories #582 in Outdoor Power Tool Accessories | | Brand | Biswaye | | Customer Reviews | 4.3 4.3 out of 5 stars (1,140) | | Item Dimensions | 13 x 9.5 x 7 centimeters | | Item Weight | 0.5 Pounds | | Manufacturer | CXAB | | Model Name | Compatible with Black and Decker 20V Battery Replacement LBXR20, LB20, LBX20, LBX4020, LB2X4020, LBXR20-OPE, LBXR2020-OPE, LB2X3020-OPE | | Model Number | LBXR20 | | Number of Batteries | 2 Lithium Ion batteries required. (included) | | Reusability | Rechargeable | | UPC | 611517092985 | | Unit Count | 2 Count | | Voltage | 20 Volts | ## Product Details - **Battery capacity:** 4 Amp Hours - **Battery cell composition:** Lithium Ion - **Brand:** Biswaye - **Number of batteries:** 2 Lithium Ion batteries required. (included) ## Images ![Biswaye 4.0Ah 20V Lithium Battery LBXR20 Compatible with Black and Decker 20V Max Battery LBXR2520 LBXR2020 LB2X3020 LBX20 LB2X4020 LBX4020 and LST522 LHT2220 LST300 20-Volt Max Tools (2-Pack) - 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 ### ⭐⭐⭐⭐⭐ Review *by C***A on 27 April 2023* Not sure about longevity. Just got the batteries. They are charging in my vac. So far so good. This are easily half the cost of one brand specific (Black & Decker) batteries. If they're reliable and last quite a while, they'll be a great deal....two for less than the price of one! If they only last half as long as the brand specific one, they're still a good deal. It's great to have two charged up batteries in case one doesn't last long enough to vac the whole house at one time. ### ⭐⭐⭐⭐⭐ Review *by A***R on 30 July 2024* Love the new batteries. They do take quite a while to charge. Like that I got two for a great price. ### ⭐⭐⭐⭐ Review *by R***S on 25 April 2026* Seem to be working well. The only issue I encountered was that the new replacement batteries didn't fit very well with the original B&D charger. It appeared to be the new batteries were just a bit too wide, but with a little bit of pressure, I got them on. Not as difficult to attach them to the weed eater. Batteries had a nice, strong charge, and worked well as replacemnets. ## 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.us/products/645595668-biswaye-4-0ah-20v-lithium-battery-lbxr20-compatible-with-black](https://www.desertcart.us/products/645595668-biswaye-4-0ah-20v-lithium-battery-lbxr20-compatible-with-black) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-22*