--- product_id: 41329404 title: "DEWALT FLEXVOLT 20V/60V MAX Lithium-Ion 9.0Ah Battery DCB609" brand: "dewalt" price: "¥57871" currency: JPY in_stock: true reviews_count: 13 category: "Dewalt" url: https://www.desertcart.jp/products/41329404-dewalt-flexvolt-20v-60v-max-lithium-ion-9-0ah-battery store_origin: JP region: Japan --- # 9.0Ah High Capacity Dual Voltage Flexibility Lithium-Ion Long Life DEWALT FLEXVOLT 20V/60V MAX Lithium-Ion 9.0Ah Battery DCB609 **Brand:** dewalt **Price:** ¥57871 **Availability:** ✅ In Stock ## Summary > ⚡ Power up your toolkit with the battery that works as hard as you do! ## Quick Answers - **What is this?** DEWALT FLEXVOLT 20V/60V MAX Lithium-Ion 9.0Ah Battery DCB609 by dewalt - **How much does it cost?** ¥57871 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/41329404-dewalt-flexvolt-20v-60v-max-lithium-ion-9-0ah-battery) ## Best For - dewalt enthusiasts ## Why This Product - Trusted dewalt brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Power That Adapts:** Seamlessly switches between 20V, 60V, and 120V tools for ultimate versatility. - • **Compact Yet Mighty:** Lightweight 2.8 lbs design packs serious power without weighing you down. - • **Endurance Champion:** 9.0Ah capacity delivers extended runtime to keep your projects moving without pause. - • **Backwards Compatible:** Works flawlessly with existing 20V MAX tools and chargers—upgrade without compromise. - • **Trusted DEWALT Durability:** Built with premium lithium-ion cells and backed by a 3-year limited warranty. ## Overview The DEWALT FLEXVOLT 20V/60V MAX Lithium-Ion 9.0Ah Battery DCB609 is a high-capacity, versatile power source engineered for professional-grade cordless tools. It intelligently adapts voltage to match your tool, supports a broad range of DEWALT brushless tools, and offers long-lasting performance with premium lithium-ion technology—all wrapped in a compact, durable design trusted by thousands of pros. ## Description The DEWALT DCB609Y FLEXVOLT Battery pack changes voltage when you change tools. It Powers a new line of 60-Volt MAX Brushless tools and 120-Volt MAX Brushless tools. This pack is also backwards compatible with 20-Volt MAX tools and chargers. Review: Dewalt quality battery! - Real deal! Dont buy fakes!... youll burn your house down! Dont run to its completely dead, dont let it get too hot, dont charge hot... and it should last a very long time. Review: Work then die - They should last longer. They die for good after heavy use ## Features - DEWALT FLEXVOLT 20V/60V MAX Lithium-Ion 9.0Ah Battery DCB609 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01MQTIEMD | | Amperage | 90 A | | Antenna Location | Power Tool | | Battery Capacity | 9 amp_hours | | Battery Cell Composition | Lithium Ion | | Battery Cell Type | Lithium Ion | | Battery Weight | 1.95 g | | Best Sellers Rank | #2,454 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #5 in Cordless Tool Battery Packs | | Brand | DEWALT | | Customer Reviews | 4.6 out of 5 stars 3,013 Reviews | | Global Trade Identification Number | 00885911457835 | | Included Components | 1) DCB609 20v/60v MAX* FLEXVOLT Battery | | Item Dimensions | 6 x 3 x 5.5 inches | | Item Type Name | DEWALT DCB609 20V/60V MAX* FLEXVOLT 9.0Ah Battery | | Item Weight | 2.8 pounds | | Manufacturer | DEWALT | | Model Name | 20/60V 9A.H MAX FLEX BATTERY | | Model Number | DCB609YY | | Number of Batteries | 1 AAA batteries required. (included) | | Recommended Uses For Product | Power Tool | | Reusability | Rechargeable | | UPC | 885911457835 | | Unit Count | 1 Count | | Voltage | 20 volts | | Warranty Description | 3 year limited warranty | ## Product Details - **Battery Capacity:** 9 amp_hours - **Battery Cell Composition:** Lithium Ion - **Brand:** DEWALT - **Number of Batteries:** 1 AAA batteries required. (included) - **Recommended Uses For Product:** Power Tool ## Images ![DEWALT FLEXVOLT 20V/60V MAX Lithium-Ion 9.0Ah Battery DCB609 - Image 1](https://m.media-amazon.com/images/I/611nrKDiJRL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: does this 9.oah mean simply a longer running time than the 6 or 3 .oah and does this battery work with all flex volt tools such as the 60 volt grinder** A: three 20 volt batteries in series would have 60 volts; in parallel they would have only 20 volts. But if in parallel, you should get more amp hours (plus possibly some wasted energy as no 2 batteries are exactly the same in internal resistance; thus the strongest would discharge internally through the weakest unless they block that with diodes, which in turn should cause a little voltage loss. Theoretically it may be a bad idea to put batteries in parallel, but practically it may make little problem. **Q: Will this work for the dcd771c2?** A: Actually the flex volt batteries WILL work with the 1820 adapters. You just have to trim off the two small ears on the adapter that prevent the flex volt battery from sliding all the way in. Did that quickly and easily with a cutting wheel on my angle grinder. **Q: What does it mean by 9ah?** A: Dewalt flexvolt batteries can be used with either Dewalt 20V or 60V Max tools, The 9Ah battery (20V tools) has triple the capacity as a 3Ah battery. This battery is a 3Ah battery when used with 60V Dewalt Max tools. Hope this helps. **Q: I have a flex volt 20/60 at 9 ah. it came with my dewalt weed trimmer. on low, i get about 1/2 hour work time. led display...doesn't. normal?** A: On LOW. What do you get for run time on HIGH? And MEDIUM? Maybe it switches to 20v on LOW So that would be 20v x 9ah = 180wh And that time that sounds about right... I know with my MW trimmer I get 30 to 40 mins with a 9ah, so you have to hurry if you only have one battery and alot of cutting... It may not seem like it should but the tablesaw gets alot more time from a 9ahbattery than a weedwacker does. Maybe someone can explain that! ## Customer Reviews ### ⭐⭐⭐⭐⭐ Dewalt quality battery! *by T***T on September 8, 2026* Real deal! Dont buy fakes!... youll burn your house down! Dont run to its completely dead, dont let it get too hot, dont charge hot... and it should last a very long time. ### ⭐⭐⭐⭐⭐ Work then die *by A***D on August 9, 2026* They should last longer. They die for good after heavy use ### ⭐⭐⭐⭐⭐ Perfect OEM *by S***. on August 5, 2026* Absolutely perfect the same as you would get right along with your tool. This is a great replacement to have if you need an extra. Very easy to pop on the charger give it an hour and start using. Definitely one of the larger batteries and lasts a long time. They are slightly heavy so you'll notice the difference once you pop it onto your tool. ## Frequently Bought Together - DCB609 - DeWalt DCB118 Flexvolt 20V 60V Max Fast Charger (Charger Only) - DEWALT FLEXVOLT 20V/60V MAX* Battery, 12.0-Ah (DCB612) --- ## 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.jp/products/41329404-dewalt-flexvolt-20v-60v-max-lithium-ion-9-0ah-battery](https://www.desertcart.jp/products/41329404-dewalt-flexvolt-20v-60v-max-lithium-ion-9-0ah-battery) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-10-07*