WEN
WEN 20V Max 15-Inch Cordless Brushless Lawn Mower: Complete Spec Analysis
The WEN 20835 is a lightweight, 20V brushless cordless mower built for small lawns up to 6,500 sq ft. Its 15-inch deck and push-button start make it one of the easiest-to-use electric options in its class, and the foldable handle keeps storage painless. It's a solid pick for compact yards where simplicity and low maintenance matter more than raw power.
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Last updated: . Based on our analysis of 364 lawn mowers.
What Sets It Apart
Key specification highlights based on our analysis.
Foldable Handle
Compact storage (98 of 364 mowers have this)
Why We Recommend It
- 01.
Brushless motor improves efficiency and lifespan compared to brushed alternatives , less friction means longer motor life
- 02.
Included 5Ah battery and charger out of the box , no extra purchases needed to get mowing
- 03.
32.8 lb total weight makes it easy to carry, lift, and store, especially up stairs or into tight spaces
- 04.
Push-button start eliminates the yanking and frustration of a pull cord
- 05.
Foldable handle design lets it tuck into a closet, shed corner, or car trunk with ease
Considerations
- 01.
41-minute runtime on a single charge may require mid-session recharging on yards approaching the 6,500 sq ft upper limit
- 02.
15-inch cutting deck is narrower than most competitors, meaning more passes are needed to cover the same area
- 03.
Single rear-bag discharge only , no mulching or side-discharge option for users who prefer to leave clippings on the lawn
Technical Specifications
| Feature | Specification |
|---|---|
| Mower Type | Push |
| Power Source | Battery |
| Cutting Width | 15" |
| Blade Type | Rotary |
| Cutting Height | 1" – 2.6" |
| Height Positions | 5 |
| Battery | 20V 5Ah |
| Runtime | 41 min |
| Discharge | Bag |
| Weight | 32.8 lbs |
| Foldable Handle | Yes |
| Start Type | Push button |
| Warranty | 2 years |
Power & Performance
The WEN 20835 runs on a 20V brushless motor, which is a meaningful upgrade over brushed motors in this tier. Brushless technology reduces internal friction, which translates to better energy efficiency from the 5Ah lithium-ion battery, lower heat generation, and a longer motor lifespan over time.
For typical cool-season and warm-season lawns in good condition, the motor handles routine weekly cuts without issue , though very thick or overgrown grass may challenge it.
Cutting System
The 15-inch rotary cutting deck is steel-built and sized specifically for smaller lawns and tight spaces between garden beds, fences, and landscaping. Five cutting height positions range from 1 inch to 2.6 inches, all adjustable from a single lever , a convenient feature that avoids reaching under each wheel.
Clippings are directed into the rear bag; there is no mulching blade or side-discharge chute included.
Drive & Handling
This is a push mower, so the operator provides all forward motion. At 32.8 lbs, it's light enough to maneuver comfortably on flat terrain, and the adjustable handle height accommodates different user heights.
The narrow 15-inch deck actually works in its favor in tight spaces , navigating around obstacles, garden edges, and narrow gate openings is noticeably easier than with wider 18-21 inch decks.
Battery / Fuel
The included 5Ah, 20V lithium-ion battery provides a rated runtime of approximately 41 minutes per charge. In practice, runtime varies based on grass height, density, and mowing pace , expect closer to 35 minutes in heavier conditions.
The charger is included in the box. WEN's 20V Max platform is shared across other tools, so existing WEN 20V battery owners may already have compatible packs.
No oil, no fuel, no spark plugs , maintenance is essentially a blade check and occasional cleaning.
Who Is This Mower For?
Ideal For
- ✓ Homeowners with small, flat lawns under 4,000 sq ft who want to finish the job comfortably within one battery charge
- ✓ Renters or condo owners who need a compact, lightweight mower that stores in a closet or balcony , the foldable handle is a genuine differentiator
- ✓ Eco-conscious users transitioning away from gas who want zero direct emissions and quieter operation for early-morning or late-evening mowing
- ✓ Low-maintenance seekers tired of oil changes, spark plugs, and fuel stabilizer , the brushless motor and battery system eliminate most upkeep
Not Ideal For
- ✕ Owners of medium-to-large lawns over 6,500 sq ft where the 41-minute runtime and 15-inch deck would require multiple charges and excessive passes
- ✕ Users with hilly or uneven terrain who would benefit from a self-propelled drive system , this is a push-only mower
- ✕ Mulching enthusiasts who want to recycle clippings back into the lawn , the WEN 20835 only supports rear-bag discharge
Assembly is straightforward and typically takes under 15 minutes , mainly attaching the handle, connecting the battery, and adjusting the handle height to preference.
Charge the 5Ah battery fully before first use to condition it and get the most accurate sense of true runtime
Set your preferred cutting height before the first mow , the single-lever system makes it easy to dial in and remember your setting
The WEN 20835 comes backed by a two-year warranty covering defects in materials and workmanship, which is a competitive coverage period for a cordless mower in this category. WEN also offers customer support through their US-based team , verify current warranty terms and registration requirements directly with WEN at the time of purchase.
FAQ
How long does the 5Ah battery last on a single charge?
WEN rates the included 5Ah lithium-ion battery at approximately 41 minutes of runtime. Real-world performance typically lands between 30-40 minutes depending on grass thickness and how fast you push.
For most lawns under 4,000 sq ft, one charge is enough; yards closer to 6,500 sq ft may require a short recharge break mid-session.
Is the WEN 20835 good for thick or overgrown grass?
The 20V brushless motor handles routine weekly maintenance cuts on typical lawns well. However, if your grass is very thick, tall, or overgrown, the motor may bog down and battery drain will accelerate significantly.
For best performance, avoid letting grass exceed 4 inches before mowing and consider making two lighter passes rather than one heavy cut.
Can I use other WEN 20V batteries with this mower?
Yes , the WEN 20835 is part of WEN's 20V Max platform, which is cross-compatible with other WEN 20V tools and batteries. If you already own WEN 20V batteries from another tool, they will work with this mower.
Having a spare battery is a practical upgrade if you're mowing near the upper end of the 6,500 sq ft capacity.
Does the WEN 20835 mulch grass clippings?
No , the WEN 20835 only supports rear-bag discharge. There is no mulching plug or side-discharge chute included or available for this model.
If returning clippings to the lawn is important to you, you'll want to look at alternatives that include a 3-in-1 discharge system.
How does the brushless motor compare to a standard brushed motor in a lawn mower?
A brushless motor has no physical brushes making contact internally, which reduces friction, heat, and wear over time. In practice, this means the motor is more energy-efficient (squeezing more runtime from the same 5Ah battery), runs cooler, and has a longer lifespan than a comparable brushed motor.
It's one of the more meaningful spec upgrades to look for in a cordless mower.
How many height settings does the WEN 20835 have, and how low can it cut?
The mower offers 5 cutting height positions adjustable via a single lever, ranging from 1 inch to 2.6 inches. All five height settings are controlled from one central lever rather than four individual wheel adjustments, which simplifies the process.
The 1-inch minimum makes it suitable for manicured, fine lawns; the 2.6-inch maximum suits taller fescues or if you prefer to mow high for lawn health.
Bottom Line
The WEN 20835 is a well-matched cordless mower for small, flat suburban lawns where simplicity, low maintenance, and compact storage are the top priorities. The brushless motor, included 5Ah battery, push-button start, and foldable handle make it one of the more complete entry-level electric mowers available.
Buyers with larger properties, hilly terrain, or a preference for mulching should explore alternatives with more runtime, a self-propelled drive, or a 3-in-1 discharge system.
Best for small flat lawns under 4,000-6,500 sq ft where quiet, zero-emission, low-maintenance mowing and compact storage are the priority.
Consider alternatives if your yard is hilly, frequently overgrown, or larger than 6,500 sq ft , or if you want mulching capability.
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