SKU: 21978739940

WEN 40-Volt Max Lithium-Ion 4.0 Ah Rechargeable Battery, Model 40404

Sale price$78.30 Regular price$87.00
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Ships within 48 hours · Estimated delivery Jul 17 - Jul 22

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Description

WEN 40-Volt Max Lithium-Ion 4.0 Ah Rechargeable Battery, Model 40404WEN 40V Max 4. 0Ah Lithium Ion Battery Pack Power your WEN 40V Max lawn and garden tools with this 4. 0Ah lithium ion battery. It delivers fade free power, an onboard charge meter, and quick release design, and works across the WEN 40V Max system. Key Features: System Compatibility: Works with the entire WEN 40V Max lawn and garden lineup Fade Free Performance: Lithium ion cells maintain consistent power throughout the charge Longer Runtime: 4. 0 amp

WEN 40V Max 4.0Ah Lithium-Ion Battery Pack

Power your WEN 40V Max lawn and garden tools with this 4.0Ah lithium-ion battery. It delivers fade-free power, an onboard charge meter, and quick-release design, and works across the WEN 40V Max system.


Key Features:

  • System Compatibility: Works with the entire WEN 40V Max lawn and garden lineup
  • Fade-Free Performance: Lithium-ion cells maintain consistent power throughout the charge
  • Longer Runtime: 4.0 amp-hours to tackle larger outdoor tasks
  • Charge Status Meter: Onboard LEDs show remaining battery life at a glance
  • Easy Swap Design: Quick-release button for fast installation and removal

Please check the Product Data Sheet Here


Specifications Table:

Specification Details
Battery Power Type Lithium Ion
Battery Voltage 40V Max
Battery Capacity 4.0 Ah
Charger Included No (charger sold separately)
Rechargeable Yes
Color Black/Orange
Number of Batteries Included 1
Power Tool Accessory Type Battery
Used With Equipment Type Blower, Chainsaw, Hedge Trimmer, Push Mower, Snow Blower, String Trimmer
Charge Time 120 minutes
Product Length 6.89 in
Product Width 3.78 in
Product Height 2.48 in
Onboard Features Battery charge meter; quick-release button

Frequently Asked Questions (FAQ):

Q: Is a charger included?
A: No. The charger is sold separately; use WEN 40V Quick Charger model 40400.


Q: How long does it take to charge?
A: Approximately 120 minutes using the WEN 40V Quick Charger.


Q: Which tools are compatible?
A: Designed for WEN 40V Max tools, including blowers, chainsaws, hedge trimmers, push mowers, snow blowers, and string trimmers.


Q: Does the battery hold charge during storage?
A: Yes, lithium-ion chemistry maintains charge well during periods of nonuse.


Q: Is it rechargeable?
A: Yes, this is a rechargeable lithium-ion battery pack.


Power, Polished

Sleek in bold WEN orange and black, this 40V Max battery brings modern utility to your outdoor toolkit. The crisp onboard meter is a subtle, tech-forward detail that keeps your workflow seamless. Pair it with a streamlined charging station and keep two on rotation for uninterrupted lawn days. It’s the refined energy source that makes luxe outdoor living effortless.


Equip your WEN 40V tools with dependable, fade-free power—add this 4.0Ah battery to your cart today.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 21978739940

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4.1 ★★★★★
Based on 16 reviews
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Product Reviews
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Verified Purchase
sam
Bozeman, US
★★★★★ 5
Worth every penny!
Excellent quality. Very easy installation. Took me less than 2 minutes. Holds phone securely. Looks very good. Easy adjustment. Very pleased. Worth every penny. Highly recommend. Update: I've been using it almost 2 months and it seems very well made. No issues. Very satisfied.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 1, 2026
D
Verified Purchase
David D.k
Belleville, US
★★★★★ 5
Finally a mount for my truck!
2015 Toyota Tacoma Prerunner. I've tried many different mounts - ones that stuck to the dash, stuck to the windshield, one that mounted in the cup holder in the console. They all were bad in their own way. This Offroam mount finally got it right. Easy installation - and when I say SOLID hold I mean it. No movement, no rattle, do creaking sound, etc, etc. I was very skeptical of the one-handed use getting the phone in and out but it's really a genius design. Seriously - I just got it, so can't really speak to longevity yet. Judging by the design and quality of parts, I'll say it will be the last mount I ever purchase for this truck. Pay the extra, and be happy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2026
S
Verified Purchase
SamsMommy
Massapequa, US
★★★★★ 5
Great Quality, Perfect Fit
2015 Tacoma. This fit perfectly and is solid. Last/Different one I had on another vehicle broke one of my vent dividers. That can't happen with this design. Worth the money. Would absolutely recommend.
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Reviewed in the United States on April 3, 2026
D
Verified Purchase
David
Phoenix, US
★★★★★ 5
Well build and functions nicely
The products build quality is excellent; in fact, its far superior to this product's competitor, "Batdiary". This mount stays locked in place when i use one hand to mount my phone or remove it. Also, the internal mechanism is much nicer than the Batdiary one and feels like it has tighter and more accurate machining tolerances which should prevent it from rattling like its competitor's did after a couple weeks use. I highly recommend this product, it is worth the high price tag!
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Reviewed in the United States on November 6, 2025
H
Verified Purchase
Hawapino
New York, US
★★★★★ 4
Buy once, cry once
This Offroam phone mount is not the cheapest option, but it is easily the most functional and sturdy one available, especially for second-generation Toyota Tacomas. I went through several plastic phone mounts before this and should have bought this one from the start to save both money and frustration. Installation was very simple, and it is even easier to use day to day. I like that this mount uses adjustable arms to grip the phone rather than relying on MagSafe. It keeps my phone secure even on rough terrain and offers plenty of flexibility for positioning the phone exactly where you want it.
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Reviewed in the United States on January 25, 2026

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