EGO LM2135SP vs LM2134SP-2 comes down to the battery kit: pick the LM2135SP for a house lawn mowed on dry days, and pick the LM2134SP-2 when one pack will not finish your job. EGO lists both as configurations of the same 21-inch Select Cut self-propelled mower, so the deck, the drive and the cutting heights match. I judge any battery mower by what happens when the pack runs out, because on my family’s farm that moment decides whether the last alley gets mown. Below I compare the two kits row by row, then by the jobs they suit.
EGO LM2135SP vs LM2134SP-2: The Short Answer
The LM2135SP is my pick for most buyers. It gives you the full Select Cut and Touch Drive mower with one 7.5Ah pack, at the lower price tier of the two. The LM2134SP-2 earns its place when your mowing runs long, because two 6.0Ah packs give you a spare, and EGO claims up to 100 minutes against up to 60 for the single pack.
| Row | EGO LM2135SP kit | EGO LM2134SP-2 kit |
|---|---|---|
| Kit contents | One 56V 7.5Ah battery and Rapid Charger | Two 56V 6.0Ah batteries and 550W Rapid Charger |
| Battery energy, about | 420 Wh in one pack | 670 Wh in two packs |
| Run time, maker’s figure | Up to 60 minutes with the 7.5Ah pack | Up to 100 minutes with both 6.0Ah packs |
| Run time by load, 21-inch family manual with the 7.5Ah pack | 60, 45 and 30 minutes at light, medium and heavy load | Not published by the maker |
| Charge time, maker’s figure | Approximately 60 minutes for the 7.5Ah pack | Not published by the maker |
| Deck width | 21 in | 21 in |
| Cutting heights | 8 positions, 1 to 4 in | 8 positions, 1 to 4 in |
| Self-propel speed | Touch Drive, 0.9 to 3.1 mph | Touch Drive, 0.9 to 3.1 mph |
| Grass handling | Mulch, bag, side discharge; 2-bushel bag | Mulch, bag, side discharge; 2-bushel bag |
| Mower weight | Not published by the maker | Not published by the maker |
| Warranty | 5 years on the tool, 3 years on battery and charger | 5 years on the tool, 3 years on battery and charger |
Two things decide it: the run time and the price step between the kits. The mower features match, and only the included batteries and their total stored energy differ.
What Is Actually Different Between the Two Kits
The model codes confuse buyers, so here is the plain version. The kit with one 7.5Ah battery and a Rapid Charger is the EGO Power+ LM2135SP 21-Inch Self-Propelled Mower Kit. Add a second kit with two 6.0Ah batteries and a 550W Rapid Charger, and you have the EGO Power+ LM2134SP-2 21-Inch Self-Propelled Mower Kit. EGO shows both under one mower page with the same Select Cut and Touch Drive features.
The packs are the real difference. EGO says its 56V ARC Lithium packs are compatible across its 56V line, so a pack from either kit can help your other EGO tools, but check each tool’s manual before you move a pack. The photos below show each kit as it arrives.
Run Time and Battery Swaps
According to EGO, the LM2135SP runs up to 60 minutes on its 7.5Ah pack, and the LM2134SP-2 runs up to 100 minutes on both 6.0Ah packs. Those are best-case figures, and EGO does not publish the load behind the 100 minutes. The two claims track the stored energy: about 420 Wh in one pack and about 670 Wh in two, a ratio of roughly 1.6 against roughly 1.7 in the minutes. For another EGO kit comparison, I weigh the LM2135SP against the LM2114SP in a separate article.
The manual for EGO’s 21-inch family shows how much the load matters. With the 7.5Ah pack it lists 60 minutes at light load, 45 at medium and 30 at heavy, and it says species, density and moisture of the grass change the time. EGO publishes no such table for two 6.0Ah packs, so treat 100 minutes as a ceiling, never as a plan.
The manual’s run-time tips matter as much as the pack choice. It says to cut no more than 1.5 inches of grass per pass, to avoid wet grass and to use the extended-runtime blade. That 1.5 inches is a ceiling for the machine, and it is separate from the one-third rule, which says to remove no more than a third of the standing grass height. A field study of the turfgrasses it tested found that mowing by the one-third rule cut the number of required mowing events by 31 percent compared with mowing weekly (1).
On a long orchard alley I feel the end of a single pack, because the mower stops abruptly and the last strip is still standing. The second pack solves exactly that. With the LM2134SP-2 I keep the spare on the charger in the workshop while the first one works, and the swap replaces the wait. My roundup of battery lawn mowers I recommend compares kits by pack size and run time.
Winner: LM2134SP-2, because the second pack turns a stop into a swap.
Cutting, Self-Propel and Handling
Everything that touches the grass is the same on both kits. Each has a 21-inch deck, eight cutting heights from 1 to 4 inches set with a one-handed lever, and EGO’s Select Cut system, which pairs interchangeable lower blades for mulching, high-lift bagging and extended run time with an upper blade. The mulching lower blade comes installed.
Touch Drive is a palm-pressure self-propel with a dial for speed, from 0.9 to 3.1 mph according to EGO. On the level house lawn I drop the dial for the corners and open it up on the straight runs. In a hot dry spell I raise the LM2135SP one notch to protect the grass, and eight positions give enough steps to do that without a big jump. My list of self-propelled lawn mowers I recommend puts more drives side by side.
Low settings have a price. Once I scalped a bump at the edge of the lawn with the LM2134SP-2 on a low notch, and the one-handed lever let me correct the height right away. The notch you choose matters more than the kit you own.
EGO does not publish a noise figure for either kit. A conference paper that compared more than 600 mowers found electric mowers significantly quieter than gas ones, and found electric push, self-propelled and ride-on models now matching gas mowers on performance (2). Both kits share that advantage, and neither changes the eye protection I wear every time I mow. My comparison of the LM2135SP and the Honda HRN-BV sets this EGO beside a Honda self-propelled mower.
EGO does not publish a mower weight for either kit. A shipping weight for a kit includes batteries and packaging, so if you lift the mower into a truck bed, look for the mower’s weight without the battery before you buy. Winner: Tie, because the deck, the drive and the heights are identical.
Charging, Storage and Care
Charging is where the kits part ways on paper. According to EGO, the Rapid Charger refills the LM2135SP’s 7.5Ah pack in approximately 60 minutes. The LM2134SP-2 ships with a 550W Rapid Charger, and EGO publishes no charge time for its 6.0Ah packs, so plan around the time in your manual.
Charge and store packs within the temperature range in your manual. A US government safety bulletin on lithium batteries warns that charging a lithium-ion pack below freezing can plate metallic lithium on the anode and raise the risk of failure (3). That is why my packs spend the winter indoors and never in the cold shed, and why I store the mower with the battery removed.
Blade Safety
Before you clear the deck, empty the bag, fit or remove the mulching insert or tip the mower: release the bail, wait until the blade has stopped, take out the battery, and wear heavy gloves on the blade.
Wet spring grass clogs the deck on either kit. I release the bail, wait for the blade to stop, take out the battery and clear the deck with a stick and a gloved hand. EGO’s manual says the blade keeps turning for a few seconds after you release the bail, and it forbids mowing wet grass. Mower hand injuries are common: a ten-year US estimate counted about 17,500 upper extremity amputations from lawn mowers, and 97 percent involved a finger (4).
Thrown objects hurt people too. I walk the lawn before the first pass and pick up sticks, fruit and stones. A 2025 review of mower eye injuries found that 77 percent came from projectiles, mostly grass, dirt and rocks, and only 2 percent of those cases documented eye protection (5). Keep children, pets and bystanders well away from the mower at the distance your manual gives, and never point the discharge at people, windows or cars.
Winner: None, because the LM2135SP gives you one pack to manage with a published charge time, and the LM2134SP-2 gives you a spare for swapping, and EGO publishes no comparable figures for the second.
Value Over Several Seasons
Both kits sit in the premium tier, and the two-pack kit sits higher. Think in packs, not in mowers: the second kit adds about 250 Wh of battery over the first, and that is what the price step buys. A spare pack bought later is a separate purchase at whatever EGO charges for it, so compare that sum with the step between the kits on the day you buy. My comparison of LM2135SP against the Greenworks MO80L416 weighs this kit against Greenworks’ 80V mower.
Warranty does not separate them. EGO gives 5 years on the tool and 3 years on batteries and chargers for household use on both. A sharp blade keeps the cut clean on either kit, and a field trial on Kentucky bluegrass found that a dull blade lowered turf quality (6), so a blade check each spring costs less than a premium kit.
If you already own EGO 56V packs, the cheaper kit becomes the better value, because your existing pack can do the swapping. With none, the LM2134SP-2 gives you two in one box. Winner: LM2135SP for most buyers, and LM2134SP-2 for a buyer with no other EGO packs and a long mowing job. For alternatives beyond these two kits, my roundup of the lawn mowers by yard size includes nine battery and gas picks.
Choose the LM2135SP If
The LM2135SP fits a lawn you finish in well under an hour of real mowing, on a dry day, with the grass cut often enough that every pass is light.
- You mow a house lawn: EGO rates the 7.5Ah pack up to 60 minutes, and the family manual’s times fall as the load rises.
- You already own EGO packs: a second pack from your other tools can handle a long day.
- You want the lower price tier: the mower is the same, and you add a pack only if you need one.
- You want a known charge time: EGO states approximately 60 minutes for this pack.
In late October I mulch the apricot and plum leaves into the lawn with the mulching blade instead of raking them. Skip it if your longest session is a long alley or a lawn plus the yard edges in one sitting.
Choose the LM2134SP-2 If
The LM2134SP-2 fits long sessions and owners with no other EGO packs, because the kit brings its own spare.
- You mow long alleys or lawn plus yard in one go: the longest job sets the pack count.
- You own no EGO packs: both packs come in the box with a 550W Rapid Charger.
- You bag clippings: a full bag slows the job, so a swap keeps the rhythm.
- You mow in a hot spell: a cooled spare pack is ready when the first one runs warm.
Under the plum trees I pick up the fallen fruit first, then bag the clippings, and with two packs the trip to the compost pile never costs me a charging wait. Skip it if you mow a small level lawn, because you pay for a second pack that spends its life on the charger.
Which Kit Goes in My Shed
I recommend the LM2135SP for the house lawn and the yard edges: the same mower, the lower price tier and a charge time EGO publishes. For the orchard alleys I recommend the LM2134SP-2, because two packs suit the longest job. Pick on one test: if one pack finishes your longest session on a heavy, dry day, the LM2135SP gives you the same mower for less. My EGO LM2135SP review covers run time by load and the drive in more detail.
If one pack does not finish it, the second pack is a simpler fix than a second session. Neither kit makes wet grass a good idea, and both follow the same blade and battery rules. That is the whole of the EGO LM2135SP vs LM2134SP-2 decision, and I make it by the length of my longest job.
Frequently Asked Questions
Is the EGO LM2135SP a good mower?
The EGO LM2135SP is a good mower for a house lawn on a dry day, with self-propel from 0.9 to 3.1 mph, eight cutting heights and a 5-year tool warranty. According to EGO, its 7.5Ah pack runs up to 60 minutes, which is a best case, so a larger lawn calls for a second pack.
What are the common problems with EGO mowers?
The common problems with EGO mowers on these two kits are a stop from overload or a hot pack, and a clogged deck in wet grass. When the status light flashes orange, release the bail, wait until the blade has stopped, remove the battery, clear the deck, then slow down or raise the cut, and skip wet grass altogether.
What are the common complaints about EGO lawn mowers?
The most common complaint about EGO lawn mowers is that the run time on the box is a best case, because thick, tall or wet grass and a fast drive speed shorten it. A second pack, a higher cut and a slower drive speed are the usual remedies, and the LM2134SP-2 includes the second pack.
How long does it take to charge my cordless lawn mower?
It takes approximately 60 minutes to charge the LM2135SP’s 7.5Ah pack on its Rapid Charger, according to EGO. EGO publishes no charge time for the 6.0Ah packs of the LM2134SP-2, so follow the time in your manual, and charge every pack within the temperature range the manual gives for charging.
Can you walk backwards with a self-propelled lawn mower?
You can walk backwards with a self-propelled mower, but avoid it unless it is necessary, and look behind you before and while you reverse. Pulling these EGO mowers backward with the drive off may lock the wheels briefly, and a small push forward then frees them, so check before you pull.
References
- Law QD, Bigelow CA, Patton AJ. Selecting Turfgrasses and Mowing Practices that Reduce Mowing Requirements. Crop Science. 2016;56(6):3318-3327. doi:10.2135/cropsci2015.09.0595
- Blomberg L, Trezza D. The evolution of quiet lawn mowers and their impact on community noise and hearing conservation. INTER-NOISE and NOISE-CON Congress and Conference Proceedings. 2021;263(2):4896-4902. doi:10.3397/in-2021-2877
- Occupational Safety and Health Administration. Preventing Fire and/or Explosion Injury from Small and Wearable Lithium Battery Powered Devices. Safety and Health Information Bulletin SHIB 06-20-2019. US Department of Labor; 2019.
- Nemirov DA, Onor GI, Kwok M, Gallant GG, Beredjiklian PK. Epidemiological Analysis of Upper Extremity Amputations From Lawn Mower-Related Injuries. HAND. 2024;21(2):223-229. doi:10.1177/15589447241300697
- Stange NR, Jennissen CA. Lawnmower-Related Eye Injuries in the U.S., 2004 to 2023. Am J Ophthalmol. 2025;277:7-16.
- Steinegger DH, Shearman RC, Riordan TP, Kinbacher EJ. Mower Blade Sharpness Effects on Turf. Agronomy Journal. 1983;75(3):479-480. doi:10.2134/agronj1983.00021962007500030015x
Safety Note: A mower blade can cut through a hand or foot and throw stones and sticks with force. Pick up debris before you mow, keep the discharge guard, bag or mulch plug in place, never point the discharge at people, windows or cars, and keep children and pets indoors while the mower runs; never let a child ride on a riding mower. Never disable the operator-presence control. Before you clear a clog, tip the mower or touch the blade, stop the engine or motor, wait until the blade has stopped, then remove the safety key or battery, or disconnect the spark plug wire on a gas model. Mow across slopes with a walk-behind mower and up and down with a riding mower, within the slope limit in your manual, and stay off wet slopes, drop-offs and ditch edges; on a rider with a rollover protection bar, keep it up and wear the seat belt as the manual says. Refuel only outdoors with the engine off and cool, wear closed shoes and eye and hearing protection, and read the manufacturer’s manual.