EGO Power+ LM2135SP Review: 21-Inch Self-Propelled Mower Kit with 7.5Ah Battery, Rapid Charger + Bonus BA2800T 5.0Ah Battery
Enterthedeals EGO Power+ 21-Inch Self-Propelled Lawn Mower
Introduction
The EGO Power+ LM2135SP is a 21-inch cordless, self-propelled lawn mower sold as a kit that includes a 7.5Ah ARC Lithium battery, a rapid 550W charger, and a bonus BA2800T 5.0Ah battery (the 5.0Ah battery may ship separately). Manufactured by EGO Power+, a brand known for a large 56V battery ecosystem, this mower targets homeowners who want a quieter, lower-maintenance alternative to gas mowers for small to mid-size lawns, including sloped yards and moderately overgrown areas.
Quick Product Overview
- Manufacturer: EGO Power+
- Product category: Cordless Self-Propelled Lawn Mower (21-inch)
- Intended use: Residential lawn care — mulching, bagging, or side discharge of grass clippings on small to medium yards; works well on slopes and uneven terrain
- Price (as listed): $649.99
- Warranty: 5-year tool warranty, 3-year battery warranty
Appearance, Materials & Design
The LM2135SP follows EGO’s familiar green-and-black aesthetic. The deck is constructed from metal alloys that give a solid, durable feel while keeping weight manageable for a battery-powered mower. The design is modern and purpose-driven: intuitive control levers, an adjustable handle that folds for storage, and a clean layout for the battery connection in the top/front of the deck.
Notable design elements:
- Select Cut multi-blade system — multiple blade/disc options are supplied to tune cutting style (mulch, bag, extended runtime, etc.).
- Touch Drive self-propel technology — thumb-controlled drive speed on the handle gives fingertip control of forward speed.
- Interchangeable battery platform — the 56V ARC Lithium batteries are compatible across many EGO tools, increasing the utility of each battery purchase.
Key Features & Specifications
- Cutting width: 21 inches
- Cutting height positions: 8 positions, adjustable from 1 to 4 inches
- Functions: 3-in-1 — mulching, bagging, side discharge
- Batteries included: 1 × 7.5Ah ARC Lithium battery (included), 1 × BA2800T 5.0Ah battery (bonus; may ship separately)
- Charger: 550W rapid charger (7.5Ah recharges in about 60 minutes)
- Blade system/Accessories: mulching blade, high-lift bagging blade, extended runtime blade, upper blade, grass bag & frame, side discharge chute, mulching plug
- Runtime: Up to 60 minutes on a single charge with the 7.5Ah battery (real-world runtime varies by grass length, thickness, slope, and use of self-propel)
- Power source: 56V battery-powered (ARC Lithium)
- Material: Metal alloys
- Color: Green
- Warranty: 5-year tool, 3-year battery
- Compatibility: Works with all EGO 56V ARC Lithium batteries
Experience Using the Mower — Real-World Scenarios
Small, flat yards (up to ~1/3 acre)
On flat, regularly maintained lawns the LM2135SP performs smoothly. Many users report a single 7.5Ah charge is sufficient for a small front + back yard, with clean mulch cuts and easy maneuvering. The mower is quick to start and quieter than a gas mower, which makes early morning or late evening runs more pleasant for you and neighbors.
Medium yards and larger properties (up to ~1/2 acre) — using two batteries
For larger lawns (around half an acre), the included 5.0Ah bonus battery is a useful backup. Real-world reports indicate that one 7.5Ah battery often requires a second battery to finish larger jobs, especially when using the self-propel mode. Battery swaps are straightforward, and the rapid charger minimizes downtime.
Slopes and hilly terrain
Users with sloped or mountainous yards praise the self-propelled function — it makes uphill and downhill work far easier than a push mower. The Touch Drive control (thumb lever) gives good speed control on slopes. Note: propulsion slows as battery power fades, which is normal for battery mowers; many users still find it sufficient to finish a steep yard with a larger battery or the included 5.0Ah backup.
Tall, wet, or overgrown grass
The mower handles overgrown areas reasonably well using higher power and the self-propel mode, but expect shorter runtime in these conditions. Wet or very tall grass requires more power and can reduce runtime substantially. Cutting in two passes or using the high-lift bagging blade helps manage heavy clippings but will use more battery charge.
Everyday user experience & ergonomics
The mower is easy to set up and operate. The adjustable/foldable handle and relatively light overall weight make storage and transport easier than comparable gas mowers. The Select Cut blade options and included bagging hardware give flexibility. The mower is quiet compared with gas-powered models, and there’s no need to mix fuel or perform winterization.
Maintenance notes
Blade sharpness is important — users noted the mower cut cleanly for a full season but began to show uneven cutting once blades dulled. Blade sharpening or replacement is necessary over time to maintain quality. The drive system is mostly trouble-free, though a few users report that the drive clutch can be sensitive (briefly releasing the drive control may stop the blades), and some found the self-propel doesn’t always engage on the first try.
Strengths (Pros)
- Strong cordless performance for a 21″ deck — capable of handling small to medium yards and slopes.
- Touch Drive self-propel feature offers good control and reduces operator fatigue, especially on hills.
- Fast recharge — 7.5Ah battery recharges in about 60 minutes with the included 550W charger.
- Comprehensive kit — includes multiple blade options, bagging frame & bag, mulching plug, side discharge chute, and a bonus 5.0Ah battery.
- Quiet operation compared to gas mowers, no fuel, minimal maintenance, and compatibility with the wider EGO 56V ecosystem.
- Good warranty coverage (5-year tool, 3-year batteries).
- Adjustable handle makes it usable by different-height users (including supervised kids) and folds for compact storage.
Weaknesses (Cons)
- Real-world runtime is highly variable — tall, wet, or dense grass and frequent self-propel use reduce battery life; larger yards often require two batteries.
- Some users report the self-propel sometimes requires a second engagement and the drive clutch can be a bit unforgiving to small hand movements.
- Turning can be slightly awkward because the rear drive wheels are locked (not differential), making tight curve maneuvering less smooth.
- Blades will dull over a season and need sharpening or replacement to maintain an even cut.
- The bonus 5.0Ah battery may ship separately, so expect potential staggered delivery.
Who is this mower best for?
The LM2135SP is an excellent option for homeowners who want to switch away from gas and need a reliable, mid-size cordless mower. It’s especially attractive for those with sloped yards who will benefit from the self-propel feature, or for users who already own or plan to buy other EGO 56V tools and want battery interchangeability. If you have a large property with heavy or wet grass and need uninterrupted runtime on a single battery, plan on purchasing additional high-capacity batteries.
Conclusion
The EGO Power+ LM2135SP kit is a well-rounded, thoughtfully equipped cordless mower that delivers strong performance for its class. The inclusion of a 7.5Ah battery, a rapid 550W charger, and a bonus 5.0Ah battery gives good out-of-the-box usability and flexibility. It shines on slopes and for users who value quieter, lower-maintenance lawn care. Real-world runtime will vary, and a second battery is a practical requirement for larger or tougher lawns. Minor usability nitpicks (sensitive drive clutch, occasional self-propel engagement issues, and rear-wheel turning behavior) are outweighed for most buyers by the mower’s convenience, build quality, and the broad EGO battery ecosystem.
Overall impression: a highly capable electric mower for small-to-medium properties and hilly yards — recommended if you want to move away from gas without sacrificing cutting performance or convenience.
