Skip to contentGo to Product Search
Roseville
1643 County Road B2Roseville, MN 55113Open until 9 pm
Find Another Store
Main Content
Shop WORX

WORX - 20V Power Share PRO 4.0Ah Lithium Battery

Model: WA3674
SKU: 6593267
Sold byBest Buy

Customers are saying

Customers enjoy the long battery life of the 20V Power Share PRO 4.0Ah Lithium Battery. Users report that the battery helps them complete tasks without delays.

Generated by AI based on customer reviews.
Features

  • Run Longer With High-Capacity Batteries

    Worx Power Share PRO intelligent batteries deliver extended run times, plus heat and impact protection. Compatible with all Worx 20V and 40V tools, outdoor power and lifestyle products

  • Intelligent Bms

    Optimizes individual Li-Ion cells, enhancing power, performance, and run time

  • Cell-Cooling Technology

    Thermoplastic material keeps cells cooler, longer, providing extended run time

  • Cell Protection

    360° cell protection provides increased security against vibration and impact

  • Charge-Level Indicator

    For quick reference to charge status

  • Includes

    20V Power Share PRO 4.0Ah Battery

Specifications
  • Brand
    WORX
    Model Number
    WA3674
    Product Name
    20V Power Share PRO 4.0Ah Lithium Battery
    Color
    Black
    Battery Chemistry
    Lithium-ion
    Number Of Batteries Included
    1
Sponsored

Reviews

Rating 5 out of 5 stars with 26 reviews

5 star rating. 25 reviews4 star rating. 1 review
100% would recommend to a friend
Customers are sayingCustomers enjoy the long battery life of the 20V Power Share PRO 4.0Ah Lithium Battery. Users report that the battery helps them complete tasks without delays.
This summary was generated by AI based on customer reviews.
  • Battery Life (12)

Customer Images

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

  • Rated 5 out of 5 stars

    very helpful

    Great to have an extra battery on hand for longer jobs.

  • Rated 5 out of 5 stars

    Reliable rechargeable battery

    Good long lasting battery. Small and compact made with good quality. Lightweight and durable battery!!!!

    Posted by JayS49

  • Rated 5 out of 5 stars

    Amazing Battery

    it doesn’t waste the battery as much but on the blower it does on my small 20 W but on the 40 W I do get a little bit more time to blow more grass off of my yard. I would recommend it. Also keep in mind that you’ll need to buy the fast charger dual setup. That will pay off in the future.

    Posted by BRANDONV

  • Rated 5 out of 5 stars

    4.0Ah battery

    Significantly more run time than the 2.0Ah and I can both weedeat and switch to leaf-blower and blow off driveway and sidewalk on the same charge

    Posted by Bderam

  • Rated 5 out of 5 stars

    Good Battery

    Works very well. Holds charge. Last a long time in my pressure washer.

    Posted by docdon

See all customer reviews

Compare similar products

WORX - 20V Power Share PRO 4.0Ah Lithium Battery
WORX - 20V Power Share PRO 4.0Ah Lithium Battery
5.0(26)

Power Share PRO batteries are the driving force behind the Worx Nitro high-performance series of cordless power tools and outdoor equipment. Compatible with every product within the Power Share platform, they're expertly engineered to go beyond our standard batteries with amplified performance, extended runtimes, and improved protection against heat and impact damage.

Simple Plus+ - 2-Pack 3.0Ah 20V Replacement Batteries for Worx Tools, Compatible with WA3525 WA3520 WG151s WG155s WG251s WG255s
Simple Plus+ - 2-Pack 3.0Ah 20V Replacement Batteries for Worx Tools, Compatible with WA3525 WA3520 WG151s WG155s WG251s WG255s
Not Yet Reviewed

Keep your Worx tools powered up with this 2-pack 3.0Ah 20V replacement battery set, built for dependable performance and longer runtime. Designed for a secure, drop-in fit, these batteries are compatible with Worx 20V platforms and replace popular models including WA3525 and WA3520, working with a wide range of Worx cordless tools such as WG151s, WG155s, WG251s, WG255s, WG540s, WG545s, WG890, and WG891. Each pack delivers strong, consistent output with no memory effect, and the built-in protection system helps guard against overcharge, over-discharge, over-current, and overheating for safer everyday use. A cost-effective backup set for DIY projects, yard work, and routine home maintenance.

WORX - 20V Power Share Li-ion 1-Hour Dual Port Quick Charger - Black
WORX - 20V Power Share Li-ion 1-Hour Dual Port Quick Charger - Black
Not Yet Reviewed

The ultimate accessory for a growing WORX tool collection. Charge two 20V Power Share batteries in an hour, or just one even faster so your tools never run out of power.

Simple Plus+ - 15.0Ah 20V/60V FlexVolt MAX Replacement Battery Compatible with DeWalt DCB612/609/615, for 20V/60V Tools & Chargers
Simple Plus+ - 15.0Ah 20V/60V FlexVolt MAX Replacement Battery Compatible with DeWalt DCB612/609/615, for 20V/60V Tools & Chargers
5.0(1)

Maximize runtime on demanding jobs with this 20V/60V MAX 15.0Ah replacement battery, engineered for long-lasting power and reliable performance. Designed as a direct drop-in replacement, it’s compatible with DeWalt FlexVolt-style batteries including DCB615, DCB612, DCB609, and DCB606, and works with a wide range of DeWalt 20V/60V cordless tools and compatible chargers (such as DCB101, DCB104, DCB112, DCB115, DCB118, and more). The dual-voltage design supports both 20V MAX and 60V MAX applications, helping reduce battery changes and downtime on the jobsite. Built for everyday durability and stable output, it’s an ideal upgrade or backup pack for pros and DIYers who need extended working time and seamless charging compatibility.

Pros for WORX - 20V Power Share PRO 4.0Ah Lithium Battery
Battery LifeThere were no pros for this product—There were no pros for this product—There were no pros for this product—

Specs

Questions & Answers

  • For the dual battery slot lawnmowers, can this battery be used on its own instead of 2 2.0Ah batteries or do both battery slots need to be filled for the mower to operate?

    Hello there! Thank you for your inquiry. For WORX mowers with a dual-battery port, the mower typically requires two batteries of the same voltage and amp-hour rating to operate properly. To determine the specific compatibility of your battery with your tool, please send the model number of the tool to reviews@positecgroup.com. An agent will be happy to review the information and confirm compatibility for you. Thank you for choosing WORX!

    Answered by Worx Product Expert
    Worx Product Expert response

  • if i leave it used, why is the battery still self draining?

    Hello there! Thank you for your inquiry. Even when the WA3674 lithium‑ion battery is removed from a tool and not actively being used, a small amount of self‑discharge is normal and expected. Inside the battery are electronic components—such as the protection circuit and battery management system—that continue to draw a very small amount of power to monitor voltage, temperature, and cell safety. This means the battery is never truly “off,” and over time it will slowly lose charge on its own. Factors like cold storage temperatures, how long it’s been sitting since the last charge, and whether it was stored fully charged or nearly empty can make the discharge more noticeable. Storing the battery for long periods fully depleted or fully charged can also accelerate the effect. For best results, WORX recommends storing batteries indoors, at room temperature, and at about a 40–60% charge, which helps minimize self‑drain and extends overall battery life. Thank you for choosing WORX!

    Answered by Worx Product Expert
    Worx Product Expert response

  • Is this compatible with the WORX WG743 40V battery powered mower and is it compatible with the mower's battery charger?

    Hello Klaus! Thank you for your question. Yes, this battery will work in the WG743 and it will also be compatible with the charger you originally got with the mower! Thank you for choosing Worx!

    Answered by Worx Product Expert
    Worx Product Expert response

  • What is the battery's voltage?

    The battery's voltage is 20 volts.

    This question and answer was generated by AI based on customer and product data.

  • What is the warranty on the battery?

    The manufacturer's warranty for parts on this battery is 3 years.

    This question and answer was generated by AI based on customer and product data.
Ask a question
No content

Customers often buy these together

Customers ultimately bought

Sponsored

Discover related products

Keep exploring

Sponsored
Sponsored