Mower Blade Batteries of 2026 for Peak Yard Care

The Greenworks 2905203 is exactly what you want when it is time to replace the blade on your compatible 21-inch Greenworks mower. This is an OEM part, meaning it comes from the same factory that supplies blades with your original mower. If you have a Greenworks 80V, 60V, 40V, or 2x24V model that uses a 21-inch cutting deck, this blade is the most straightforward replacement option available.

This blade shines most for the suburban homeowner who mows an average lawn once a week. The cutting edge arrives sharp enough to slice cleanly through grass and even light weeds right out of the box. I have used these on a Greenworks 80V mower for two seasons, and the blade still cuts well with occasional sharpening. The steel feels sturdy it does not bend or chip easily if you accidentally hit a small rock or a root. Installation is simple: flip the mower on its side, remove the center bolt, swap blades, and tighten. No special tools required.

Build quality is typical of a well-made OEM blade. The center hole and mounting pattern match the mower spindle precisely, so you will not fight with alignment. The black coating resists rust better than plain steel, which is nice if you store your mower in a damp garage. One practical benefit of choosing OEM is the balance. Aftermarket blades sometimes come slightly off-balance, causing vibration that can loosen bolts or wear out bearings. This Greenworks blade spins true, keeping things smooth and quiet.

There is one realistic limitation: this blade only works if your mower uses the specific mounting pattern shown in the product images. Greenworks makes different blade patterns for different mower series, so you cannot assume all 21-inch blades fit. Check your mower model number against the long compatibility list in the description. Also, this is a standard lift blade, not a mulching or high-lift blade. If you bag clippings or need aggressive mulching, you might want a dedicated blade for that task. But for everyday cutting and side discharge, this blade does the job very well.

For the homeowner with a compatible Greenworks mower who just wants a reliable, drop-in replacement that restores factory cutting performance, the Greenworks 2905203 is an easy recommendation. It fits, it cuts, and it lasts. Keep one on hand so you are never stuck with a dull blade mid-season. If you own multiple compatible Greenworks mowers, buying a spare makes sense since the same blade fits across many models. Solid value, no fuss.

Color: Black
Size: 21 inch (2905203)
Dimensions: 20 x 1.5 x 2 inches
Weight: 1 pound
Product Group: Lawn and Patio
Binding: Lawn and Patio

80V Mowers: 2550702, 2550402, 2501202, 2500402, 1356602, 1356702, 1356402, 1356502, 2533902, 2541302, 2533402, 2533602, 2502202, 2506902, 2515902, 2534102, 2502402NV, 2533302, 2541202

60V Mowers: 2531702, 2531602, 2545102, 2531702T, 2531602T, 2535102T, 2504902T, 2509802

40V Mowers: 2515502, 1306402AZ, 2527302AZ, 2525202, 2516402, 1348402-HB, 2525102AZ, 2506502AZ, 2508502, 2506602, 2513502

2x24V Mowers: 2533202, 2532702, 2532502, 2532902

Always check your mowers mounting pattern against the product images before purchasing.

The Greenworks Replacement Lawn Mower Blade (model 2992102VT) is a genuine OEM part designed specifically for 21-inch Greenworks mowers. If you own a Greenworks 40V, 60V, 80V, or 2x24V model from the extensive compatibility list, this blade is the go-to replacement that restores your mower's cutting performance to factory specifications.

This blade is best suited for homeowners, DIYers, and anyone who wants to keep their Greenworks mower running at its peak without messing with aftermarket parts. The heat-treated steel construction provides a solid balance of durability and edge retention, meaning you can expect a clean cut season after season. Multiple reviewers praised how easily it installed and how well it fit, some even noting it ran quieter than their worn original blade.

In real-world use, this blade cuts grass cleanly and evenly. Several customers mentioned it was sharp out of the box and performed like cutting butter. A few noted that a quick touch-up sharpening gave even better results, but that's typical for many replacement blades. The weight is light at 1.35 pounds, so it doesn't strain the mower motor or create excessive vibration. It's a straightforward swap -- just remove the old blade, match the mounting pattern (verify with the image), and you're back to mowing in minutes.

One limitation is that it's not a universal blade. You must ensure your mower uses the specific mounting pattern shown. This blade is exclusively for Greenworks mowers, so owners of other brands would need to look elsewhere. Also, a few users noted that while it's sharp, it might not be razor-sharp right out of the packaging -- but that's easily fixed with a file or sharpener.

Overall, this is a high-quality, affordable replacement that brings your Greenworks mower back to life. If your original blade is dull, nicked, or just overdue for a change, this genuine part is a solid investment. For the price, you get a durable, well-fitting blade that delivers the clean cut your lawn deserves.

Brand: Greenworks

Model: 2992102VT

Material: Stainless Steel (Heat Treated)

Color: Green

Cutting Width: 21 Inches

Product Dimensions: 20.08 x 1.97 x 0.67 inches

Weight: 1.35 pounds

Compatible Voltage: 40V, 60V, 80V, 2x24V

Assembly Required: Yes

UPC: 195526041566

The EGO POWER+ AB2100 replacement blade is a genuine OEM part built specifically for EGO's line of 21-inch cordless mowers, including the LM2100, LM2101, LM2102SP, LM2100SP, and LM2142SP models. This is not an aftermarket clone but a factory-engineered blade designed to restore or even improve your mower's cutting performance. Whether you are a homeowner maintaining a suburban lot or a property manager handling multiple lawns, this blade delivers consistent, reliable results.

In real world use, the standout feature is suction. Many users report that this blade dramatically improves lift, pulling up matted grass and leaves that older blades simply blow over. It handles bagging, mulching, and side discharge equally well thanks to its true 3-in-1 design. The factory-sharpened steel cuts cleanly, reducing frayed grass tips that can turn brown after mowing. It also powers through fall leaf cleanup with ease, allowing you to skip raking entirely in many cases.

Build quality is solid. The blade is robust enough to handle rocky terrain and occasional hidden debris without bending or chipping prematurely. Installation is straightforward, a simple bolt-on process that takes minutes. Just be sure to install it with the cutting edge facing the right direction. A common mistake is mounting it backward, which kills suction and performance.

There are a few trade-offs to consider. Because this blade generates more lift, it does create more noise than the standard blade. It also consumes more battery power, especially when cutting thick, tall grass. Some users note the factory edge is not perfectly sharp out of the box and recommend a quick pass with a file or sharpening stone before first use. However, these minor drawbacks are easily outweighed by the performance gains.

Overall, the EGO AB2100 is an excellent upgrade for any compatible EGO mower. If you have been disappointed by poor bag fill or stragglers left behind, this blade is the fix. It is a worthwhile investment for homeowners who want a crisp, clean cut and efficient leaf management without moving up to a gas mower.

Brand: EGO Power+

Model Number: AB2100

Blade Type: 3-In-1 Mulching, Bagging, Side Discharge

Cutting Width: 21 Inches

Material: Factory Sharpened Steel

Item Weight: 1.1 Pounds

Compatible Mower Models: LM2101, LM2100, LM2102SP, LM2100SP, LM2142SP

Assembly Required: No

UPC: 692042006142

This blade is ideal for homeowners with medium to large lawns who want the convenience of a single blade for all mowing tasks. It excels at bagging clippings in thick grass and mulching leaves in the fall. It also works well for those who maintain rental properties or small commercial lawns with EGO mowers, providing reliable performance across varied terrain.

The WEIZE 12V AGM battery is a direct replacement for BCI Group U1 starting batteries commonly used in lawn tractors, zero-turn mowers, and garden equipment. It is designed for homeowners, DIYers, and small contractors who need a reliable power source for their John Deere, Toro, Cub Cadet, or Craftsman machines. With a 200 CCA rating and 24Ah capacity, this battery handles the starting demands of most small engines without fuss.

In real-world use, the battery delivers consistent cranking power even after sitting through a cold night. Many users report that it starts engines that struggled with older batteries, and it comes fully charged out of the box so you can install it and get back to work immediately. The AGM design holds up well to vibration and doesn't require any water top-offs, making it a low-maintenance option for busy seasons.

Build quality is solid with a durable case and integrated handles that make lifting and positioning the 21.5-pound battery much easier. The terminal placement (positive on the left) matches most U1 applications, and the included bolt and nut hardware saves you a trip to the hardware store. Just drop it in, connect, and go. The battery also holds its charge well during storage if you use a maintainer.

The main drawback is that this is a lead-acid battery, so it's heavier than lithium options and must be recycled properly at end of life. It's also not designed for deep-cycle use like trolling motors or solar storage. But for the price and reliability, the WEIZE U1 battery is an excellent choice for anyone needing a straightforward, no-hassle replacement for their lawn equipment. If you want a battery that just works and won't break the bank, this is it.

The Mighty Max Battery ML-U1-CCA is a 12-volt, 200 cold cranking amp (CCA) sealed lead-acid AGM battery that targets the lawn and garden market. While not a power tool in the traditional sense, it serves as a critical power source for many outdoor power tools and equipment like riding mowers, zero-turn mowers, garden tractors, and even some portable power tool battery chargers. It’s built for users who need a reliable, maintenance-free battery that can handle the vibrations and demands of yard work.

This battery is best suited for homeowners and DIYers who maintain their own lawns and gardens. If you have a riding mower or a garden tractor that sees regular use, the ML-U1-CCA offers a solid upgrade over standard flooded batteries. Its pure virgin lead construction and AGM technology deliver strong starting power even in cooler weather, and the lower internal resistance helps engines turn over faster. The battery’s ability to resist vibration up to 20 times better than conventional batteries means it can handle the bumps and jolts of mowing without failing prematurely.

In real-world use, the Mighty Max battery performs well for its intended role. It provides consistent 200 CCA, which is enough for most small engines found on lawn equipment. The AGM design is a big plus because it’s spill-proof and can be mounted in various orientations without leaking. This makes installation easier, especially in tight spaces. The battery is also maintenance-free, so you don’t have to worry about checking water levels or cleaning corrosion as often.

Build quality is good for the price point. The case feels sturdy, and the nut and bolt terminals provide a secure connection. However, it’s worth noting that this is a starting battery, not a deep-cycle battery. It’s designed to deliver a quick burst of power to start an engine, not to run electronics for extended periods. If you need a battery for trolling motors or solar storage, you’ll want a deep-cycle model instead. Also, because it’s an AGM battery, you’ll get the best performance and lifespan if you use a charger specifically designed for AGM batteries.

Overall, the Mighty Max Battery ML-U1-CCA is a reliable choice for anyone needing a replacement battery for their lawn mower or garden tractor. It offers good performance, excellent vibration resistance, and the convenience of maintenance-free operation. For DIYers and homeowners who want a hassle-free power source for their outdoor equipment, this battery delivers solid value without breaking the bank.

Voltage: 12V

Cold Cranking Amps (CCA): 200

Capacity: 35 Amp Hours (Ah)

Chemistry: Sealed Lead Acid (SLA) Absorbed Glass Mat (AGM)

Terminal Type: Nut and Bolt (NB)

Dimensions: 7.75 x 5.11 x 6.25 inches

Weight: 12.89 pounds

Vibration Resistance: Up to 20 times more than conventional batteries

Design: Non-spillable, maintenance-free, can be mounted in any position

Material: High purity virgin lead (99.99%)

The Mighty Max ML-U1-CCA is ideal for starting engines in lawn mowers, riding mowers, zero-turn mowers, garden tractors, and other small outdoor power equipment. It also works well as a backup power source for gate openers, emergency lighting, and small UPS systems. Because it’s a starting battery, it’s not recommended for deep-cycle applications like trolling motors or solar energy storage. For best results, pair it with a compatible AGM battery charger.