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Wild Badger Power 40V 21″ Cordless Lawn Mower Brushless, 6,534 sq ft/0.15 ac, 2×4.0Ah Batteries & Fast Charger, 7-Position Heights,for Medium-to-Large Lawns

  • Based on 1,004 reviews
Condition: New
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Availability: Only 3 left in stock, order soon!
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Arrives Wednesday, Jul 29
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Style: 40V 21" Self Propelled


Features

  • MAX-COVERAGE WORKHORSE For medium-to-large lawns; fewer passes, less time.
  • 21 DECK & ADJUSTABLE HEIGHTS+17% coverage vs 18; dial in cut quality for bigger yards.
  • 4-IN-1 GRASS HANDLINGBagging, Mulching, Side Discharge, Rear Dischargefor the most flexible clipping management.
  • BATTERIES & RUNTIMEIncludes 2 4.0Ah 40V packs + fast charger(full charge in 1.9 hours); mows up to 6,534 sq ft (0.15 ac) per charge;typical 90min/charge(swap to the second pack for extended runs).
  • 40V PLATFORM ECONOMICS One system, many toolssave time and money year-round.
  • RELIABLE SUPPORT & EXTENDED WARRANTY Backed by a 3-year tool warranty,with responsive U.S.-based support. We stand behind every unit, giving you the confidence that your lawn mower is a safe choice.
  • EFFORTLESS SELF-PROPELLED OPERATION: Simply pull the self-propel lever toward the handle and the mower will move forward automaticallyno pushing required. Use the variable speed control to match your walking pace, and release the lever at any time to stop the mower instantly.

Description

21″ — Max-Coverage Workhorse (Medium-to-Large Lawns)For bigger lawns that demand fewer passes and less time. The 40V 21″ deck steps up coverage (+16.7% vs 18″).4-in-1 grass handling—Bagging, Mulching, Side Discharge, Rear Discharge— for maximum flexibility. 7 -Position Quick height adjustments help dial in cut quality as conditions change. Includes 2× 4.0Ah 40V batteries + fast charger; mows up to ~6,534 sq ft (~0.15 ac) per charge with typical up to 88 minutes of use per pack—swap to the second battery for extended runs.Built for medium-to-large residential lawns. With the 40V platform, one system powers multiple Wild Badger Power tools to save time and money all year.Actual runtime/area vary with grass height/density, terrain, temperature, and walking pace.

Brand: Wild Badger Power


Power Source: Battery Powered


Material: Plastic


Color: Blue


Style: 40V 21" Self Propelled


Item Weight: 53 Pounds


Cutting Width: 21 Inches


Operation Mode: Automatic


Product Dimensions: 60"D x 50"W x 21"H


Smart Home Compatibility: Not Smart Home Compatible


Brand Name: Wild Badger Power


Model Number: WB40VSP21LM


Required Assembly: Yes


UPC: 850046351778


Manufacturer: WILD BADGER POWER


Manufacturer Part Number: WB40VSP21LM


Unit Count: 1.0 Count


Item Type Name: Lawn Mower


Material Type: Plastic


Power Source: Battery Powered


Operation Mode: Automatic


Smart Home Compatibility: Not Smart Home Compatible


Maximum Adjustable Cutting Height: 3.55 Inches


Battery Average Life: 88 minutes


Minimum Adjustable Cutting Height: 1.18 Inches


Number of Positions: 7


Item Weight: 53 Pounds


Cutting width: 21 Inches


Item Dimensions D x W x H: 60"D x 50"W x 21"H


Color: Blue


Style Name: 40V 21" Self Propelled


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Jul 29

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • So far id say good so i give four stars So far id say good so i give four stars
Style: 40V 21" Self Propelled
I cant honestly say how good it is yet because i am a slightly disabled woman with a C3 to S1 spine injury that i will never fully recover from. So with that here we go. I did not receive an owners manual. But its common sense putting it together since you are just attaching the handle. Other common knowledge is charging the batteries to full before use. I am unsure of speed on charge because i put one on the charger one morning before work and then came home and charged the other. So the one thing i had problems with is getting the blade to engage. Mainly because as soon as you hold up the bottom lever (self propel) you push the start button. For me it wouldnt engage with both levers at same time. So when holding SP lever the wheels start turning but then you have to bring down the blade lever to the handle and press the start button again to engage. And for me the slowest level was fine but had to bump it up just slightly. The fast speed for me was WAY TOO FAST like watching a 90 yr old walking a bull mastiff if the mastiff wasn't trained to heal. But for norma person fastest speed might be perfect. As you can see by the pictures i posted, my grass was in dire need of a cut. I really liked the one handle to raise all wheels at once. Saves a persons back. I had it set for the highest level. I used the mulching and it really didnt leave a lot of grass mess so it did really well especially with the height of my grass. I did not mow that much because my back was in pain and legs were shaking, but i think i mowed for about 30 to 45 min (again i am very slow) and battery i guess was dying but not sure because i was pretty done (pain wise) by that time anyway. I put the battery back on the charger. Wiped down the mower and folded it up and placed it next to the two non working gas mowers and gas cans that im so glad i dont need to use anymore. I was happy i didnt have to wait for my mower to cool off before i could wipe down or deal with the fuel smell bring back into garage. Oh almost forgot… the handle adjustment for tall people. Its really nice. Although i am short, now my bf can possibly do this and since its self propelled he shouldnt die in the heat as quickly. And its okayish for me to do if absolutely need to. I did notice that the charger will blink green. Since i didnt get an owners manual i am assuming that the charger was hot. My battery said fully charged when i checked the little push button on battery so i unplugged the charger. I saw someone before in reviews wondering where you can purchase new batteries and i googled it and said lowes or tractor supply. Anyway im going to throw this tip out there as well just for the added common sense ALWAYS REMOVE BATTERY BEFORE FLIPPING OR GOING ANYWHERE NEAR THE BLADE you never know. But since i didnt get an owners manual im sure others wont either. But most people dont read them anyway. Want to add in there too, i did pay a service to mow my lawn since it had been two month since last mow. I didnt want to break my new mower on that bad of lawn LOL So upkeep will be easier. I will update on battery life and charge and performance once i actually mow the whole yard But i give it a four star for now just because of my lawn condition and my physical condition prevented a thorough use. Update: have had for almost a year now. My back has made some progress. Last year i would use almost four batteries to mow front OR back yeard because the slow was still too fast for me lol. But now i can mow each yard with 3 batteries. 1 1/2 per yard including front ditch. The mower works fantastic and sometimes it still gets too fast on the fastest but again 2 1/2 years after full spine injury and i can mow a lawn again! Yay! Sooooo much easier and lighter than a gas mower. If you have any major injury, this is the mower for you. ... show more
Reviewed in the United States on August 3, 2024 Reviewed in the United States on August 3, 2024 by Shawna

  • Excellent product
Style: 40V 18" Push
I like that it was delivered a day early. It's very lightweight which I like; makes it easy for a disabled 64 year old woman to handle. It does a very good job cutting the grass. Battery charges quickly and lasts a good amount of time. Assembly was easy once hubby and I stopped trying to make it more complicated then it is. I've only cut the grass once but if it continues like this I'll be very happy. Update: After using this mower some pros and cons: Pros: Easy to use and lightweight Very low noise Cuts the grass well Con: Wish the battery would last longer will have to buy a spare Still overall would give this mower a 5 star ... show more
Reviewed in the United States on May 11, 2024 by Marina Franklin

  • Not bad especially for the price.
Style: 40V 18" Push
Update: I ended up exchanging the previous one I had because of the number of times it stopped and needed to be restarted was just insane. The replacement has worked fine. Very easy to use. Lightweight and easy to carry or move. I must’ve just received a mower before but this one works very well. Original review: I just received this so this is my review based on one use. It was fairly easy to put together even though the assembly instructions were kinda bad and tiny print. I checked the battery and it wasn’t fully charged so I charged it until full. Not sure if I have a faulty battery or what but as it’s charging the lights did not display to help determine how charged the battery was. I had to keep periodically pressing the power on button. I thought this was a little odd. Upon first usage, it turned off twice within the first two fairly small rows. The grass hasn’t been cut for awhile but it wasn’t extremely long. It did start again after turning off but this became a theme for the entire lawn. It would cut fine then turn off. I’d check and nothing was stuck and not too much grass in the catcher. I just had to keep starting it. The battery did get me through the entire yard which was good and why I ordered a new mower. For reference, I had been using a 13 inch 20v which wouldn’t last the full lawn without a second battery. All in all, the cut was clean and even. Yard looks good but there are some issues and difficulties with its operation. I’m debating if I should return it because it doesn’t seem like it will last very long but with a little work it does the job for now. ... show more
Reviewed in the United States on November 10, 2025 by M

  • It Cuts Grass
Style: 40V 18" Push
First time today using the lawnmower. I think the main thing people want to know in a review is this. Does it cut grass??? The answer is yes!!!!!! It is light weight and gets in places where I struggled before. I have a half acre property, and for the past 3 years I have purchased a new, huge gas powered, self-propelled mower. They all broke and became too hard to start, so I had to junk them. This mower cuts as well, performs just as well, so I'm hoping this is a keeper. As far as the reviews on the battery life.....all I can say is that any electric lawn item you have (saws, weed eaters, lawnmowers) you should expect to recharge. It is the nature of the product. I just take a lunch break, or trim bushes while my battery is charging. So far, I love it!!! As a follow up to the battery life. It took me 5 charges to do my front yard (takes almost 3 hours to charge the 40v 4.0Ah). I could deal with that, if the battery was available for purchase. However, they don't make it anymore. They told me I could purchase a 40v 2.5 or 2.0Ah, but that would be even half the battery life of the bigger 4.0. This is the 1st time I've ever bought an electric lawnmower, so I just didn't know. My recommendation to myself and others is to do extensive research on the battery availability first. I understand batteries aren't going to last long, but that can be ok if the company has the same battery in stock so the consumer can purchase an extra one. My advice to myself and others is just to make sure the lawnmower they are buying will continue to manufacture the longer life battery that comes with the mower so we can buy an extra one (which would solve a lot of the problem of low battery life). This way one can be used and the other one charging. I've lived and learned and will do my research on what matters - the availability of an extra battery. Sadly, there is no extra one made for the Badger. I really do love this lawnmower!!! ... show more
Reviewed in the United States on March 21, 2024 by Linda

  • Dead in the water!
Style: 40V 18" Push
It's a worthless POS because doesn't matter how well it works if it can't survive from one season to the next without the battery becoming dead and unrechargeable then it's useless. I bought this new and mowed the lawn once and stored the battery as recommended. Now the battery won't charge so I got 1 VERY small yard mowing out of this battery and And starting in the new season with a dead battery. There are not detailed instructions of how to store and maintain the battery except to keep it clean and dry. Youtube videos and AI can't explain how to keep it in that apparent midway half charged state it has to be in to stay alive over the winter! What is it-- an endangered species of hibernating squirrel or a BATTERY, for EFF's sake??? You cannot buy replacement batteries by themselves except used with no warranty and no way to know how long they might last. You can buy the 20 Volt fairly easily. The mower needs a 40v. Not to be found. None of the usual shopping sites nor the Badger official site can you buy the 40 Volt replacement battery and even when you can find it used, it's half the cost of the original Mower PLUS battery. Right now it's $92 for the only one 40 Volt USED battery available on Amazon and the eBay Badger site has none. You can buy a whole new tool for $$$250 +dollars that comes with The same 40 Volt battery---a tool I don't need-- but I wonder how long that one lasts? Wouldn't it be hilarious to buy another tool only to have that battery die at the end of this season? That way, that you end up with two dead batteries and two tools that are virtually brand new. I'm beyond disgusted! ... show more
Reviewed in the United States on May 10, 2026 by Serious Reader

  • Great mower at great price
Style: 40V 18" Push
I am a 74-year-old woman who still likes to mow my grass abd take care of my yard. I did look at quite a few battery powered mowers after my gas mower died. I love this mower!! I am only 5 feet tall but when putting this mower together (extremely easy) I was able to adjust the handle to fit my height. It is very light-weight and easy to handle and maneuver. I have a fairly large yard. The battery will go for at least 40 minutes - I don't want to completely drain it and recharges in about an hour and 15 minutes. I have to recharge it one time to do my whole yard. If the charge light is still blinking after an hour, I have found that if I take the battery off the charger and really smack it back in the charger it shows fully charged. There is no dread in mowing the lawn now. It's a piece of cake!! November 12 update: Reading through some reviews I noticed some people had an issue with the battery being hot when taken off the mower for recharge. This created a lengthy time as the battery has to cool down before recharging. I have had that happen only one time on the first time I used the mower. My grass was high, hadn't been cut in a while, and the engine had to work harder. I noticed it going going to max power many time with that mowing and since the engine worked harder the battery became hot. Not extremely so though. I just put gloves on to remove the battery. I let it cool with a fan blowing on it for about half an hour before placing it in the charger. I have not had a hot battery since that first cut when the mower worked so hard. I still love this mower! ... show more
Reviewed in the United States on September 24, 2024 by Krabshell

  • You'll need an extra battery
Style: 40V 18" Push
This isn't a bad mower at all. It handles tall patches of grass and has only stopped a few times. My main issue is that, on a single battery charge, I've barely been able to complete half of my lawn, which is about a quarter of an acre. I definitely recommend buying an extra battery if you get this mower, but therein lies the problem, as you think you're buying an affordably priced mower, but in reality you need that extra battery, which costs half the price of the mower itself. I also haven't been able to find an extra battery as last time I checked, it was out of stock on the Wild Badger website. So currently, when I mow, I have to split the task over 2 days to allow the battery to recharge, which takes several hours. One thing I've learned about battery-powered equipment is that when you buy a particular brand, you are now stuck in that ecosystem, because the batteries are not interchangeable among different brands. So even though the Wild Badger Mower is great, I regret buying it, because I don't use their other yard equipment. It's better to buy a brand for which you'll want to use their entire line of products. That way, you can share the battery for different equipment instead of having to buy spare batteries for different brands. ... show more
Reviewed in the United States on June 7, 2026 by BC

  • Happy with my new Wild Badger
Style: 40V 18" Push
I am very pleasantly surprised with how much easier mowing became after switching from my older, bulkier and heavier 19” corded mower. My 18” Badger is more nimble and maneuverable, yet can still maintain a straight line cut. Even the grass catcher is lighter and better fit for disposing of grass clippings as needed. The 40V battery came well charged right out of the box, but you’ll want to top it off before using. It more than handles the front, side and back yards of my quarter+ acre lot without recharging, and it hasn’t yet felt at all warm even after giving my fescue it’s first (well overdue) shave of the season. Take care mowing in particularly tight spots. The cowling that covers the blade once flexed enough that the side of my blade scuffed against it lightly. ... show more
Reviewed in the United States on April 19, 2026 by AS

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